CMMC-CCP Sample Questions Answers

Understanding the Role of Configuration Management (CM) in CMMC 2.0

TheConfiguration Management (CM) domainin CMMC 2.0 ensures that systems aresecurely configured and maintainedto prevent unauthorized or unnecessary changes that could introduce vulnerabilities. One key requirement in CM is torestrict, disable, or prevent the use of nonessential programsto reduce security risks.

Relevant CMMC 2.0 Practice:

CM.L2-3.4.1 – Establish and enforce security configuration settings for information technology products employed in organizational systems.

This practicerequires organizations to control system configurations, including the removal or restriction ofnonessential programs, functions, ports, and servicestoreduce attack surfaces.

The goal is tominimize exposure to cyber threatsby ensuring only necessary and approved software is running on the system.

Why is the Correct Answer CM (D)?

A. Access Control (AC) → Incorrect

Access Control (AC) focuses onmanaging user permissions and accessto systems and data, not restricting programs.

B. Media Protection (MP) → Incorrect

Media Protection (MP) deals withprotecting and controlling removable media(e.g., USBs, hard drives) rather than software or system configurations.

C. Asset Management (AM) → Incorrect

Asset Management (AM) is aboutidentifying and tracking IT assets, not configuring or restricting software.

D. Configuration Management (CM) → Correct

CM explicitly coverssecuring system configurationsbyrestricting nonessential programs, ports, services, and functions, making it the correct answer.

CMMC 2.0 References Supporting this Answer:

CMMC 2.0 Practice CM.L2-3.4.1(Security Configuration Management)

Requires organizations toenforce security configuration settingsandremove unnecessary programsto protect systems.

NIST SP 800-171 Requirement 3.4.1

Supportssecure configuration settingsandrestricting unauthorized applicationsto prevent security risks.

CMMC 2.0 Level 2 Requirement

This practice is aLevel 2 (Advanced) requirement, meaningorganizations handling Controlled Unclassified Information (CUI)must comply with it.

Background on Legacy Markings and CUI

Legacy markings refer to classification labels used before the implementation of the Controlled Unclassified Information (CUI) Program under DoD Instruction 5200.48.

Documents with legacy markings (such as “For Official Use Only” (FOUO) or “Sensitive But Unclassified” (SBU)) must be reviewed for re-marking or redaction to align with CUI requirements.

When Must Legacy Markings Be Updated?

If the document is retained internally (Answer A - Incorrect): Documents under DoD control do not require immediate re-marking unless they are being shared externally.

If the document is classified as Secret (Answer B - Incorrect): This question is about CUI, not classified information. Secret-level documents follow different marking rules under DoD Manual 5200.01.

If a document is being shared externally (Answer C - Correct):

According to DoD Instruction 5200.48, Section 3.6(a), organizations must review legacy markings before sharing documents outside the organization.

The document must be re-marked in compliance with the CUI Program before dissemination.

If the original document does not contain CUI (Answer D - Incorrect): The original source document's status does not affect the requirement to re-mark a derivative document if it contains CUI.

Conclusion

The correct answer is C: Documents with legacy markings must be re-marked or redacted when being shared outside the organization to comply with DoD CUI guidelines.

Understanding CMMC Asset Categorization

TheCMMC 2.0 Scoping Guidedefines how assets are categorized based on their involvement withFederal Contract Information (FCI)andControlled Unclassified Information (CUI).

In this scenario:

Thegovernment services divisioninteracts withfederal clientsandreceives FCI, making its assetsin-scopefor CMMC Level 1.

Thecommercial services divisioninteractsonly with non-federal clientsanddoes not handle FCI—this means its assets arenot subject to CMMC Level 1 requirementsand should be classified asOut-of-Scope Assets.

CMMC 2.0 Definition of Out-of-Scope Assets

As per theCMMC Scoping Guide, assets that:

✅Do not store, process, or transmit FCI/CUI

✅Do not directly impact the security of in-scope assets

✅Are completely segregated from the FCI/CUI environment

are classified asOut-of-Scope Assets.

Since thecommercial services divisiononly processespublicly available information and has no interaction with FCI, its assets areout-of-scopefor CMMC Level 1 assessment.

Why the Other Answers Are Incorrect

A. FCI Assets

❌Incorrect. FCI assets areonly those that store, process, or transmit FCI. The commercial services division doesnothandle FCI, so its assets donotqualify.

B. Specialized Assets

❌Incorrect. Specialized assets refer toInternet of Things (IoT), Operational Technology (OT), and test equipment. These donot applyto a general commercial services division.

D. Operational Technology Assets

❌Incorrect.Operational Technology (OT) Assetsinvolveindustrial control systems, SCADA, and manufacturing equipment—which are not relevant to this scenario.

CMMC Official References

CMMC 2.0 Scoping Guide – Level 1 & Level 2

CMMC Assessment Process (CAP) Document

Thus,option C (Out-of-Scope Assets) is the correct answerbased on official CMMC scoping guidance.

In the CMMC assessment process, conflicts of interest must be identified early to ensure an impartial and objective evaluation of an organization's compliance with CMMC 2.0 requirements. The appropriate phase for identifying conflicts of interest is during the"Verify Readiness to Conduct Assessment"phase.

Step-by-Step Explanation:

Assessment Planning & Conflict of Interest Consideration

Before an assessment begins, theC3PAO (Certified Third-Party Assessment Organization)or theDIBCAC (Defense Industrial Base Cybersecurity Assessment Center) for DOD-led assessmentsmust confirm that there are no conflicts of interest between assessors and the organization being assessed.

A conflict of interest may arise if an assessor haspreviously worked for, consulted with, or provided direct assistance tothe organization under review.

CMMC Assessment Process and Phases

The CMMC assessment process involves multiple steps, and the verification of readiness is acritical early phaseto ensure that the assessment is unbiased:

Analyze Requirements:This phase focuses on defining the assessment scope, but it does not include conflict of interest verification.

Develop Assessment Plan:This phase focuses on structuring the assessment methodology, not on identifying conflicts.

Verify Readiness to Conduct Assessment (Correct Answer):

At this stage, theC3PAO or assessment team must review potential conflicts of interest.

TheDefense Industrial Base Cybersecurity Assessment Center (DIBCAC)also ensures assessors do not have any prior relationships that could compromise the objectivity of the evaluation.

Generate Final Recommended Assessment Results:This phase occurs at the end of the process, after the assessment is complete, so conflict of interest identification is too late by this stage.

Official CMMC Documentation & References

CMMC Assessment Process (CAP) Guide– The CAP details procedures assessors must follow, including conflict of interest verification.

CMMC 2.0 Scoping and Assessment Guides– Published by the Cyber AB and DoD, these guides reinforce the need for impartiality and independence in assessments.

DoD Instruction 5200.48 (Controlled Unclassified Information Program)– Outlines requirements for ensuring objective cybersecurity assessments.

By ensuring conflicts of interest are identified in the"Verify Readiness to Conduct Assessment"phase, the integrity of the CMMC certification process is maintained, ensuring that assessments are conductedfairly, independently, and in accordance with DoD cybersecurity policies.

1. Understanding Basic Safeguarding Requirements for FCI in CMMC Level 1

Federal Contract Information (FCI) is defined as information provided by or generated for the government under a contract that isnot intended for public release.

CMMCLevel 1is designed to ensurebasic safeguardingof FCI, aligning with15 security requirementsfound inFAR 52.204-21 (Basic Safeguarding of Covered Contractor Information Systems).

Contractors handlingonly FCImust meetCMMC Level 1, which alignsdirectlywith the safeguarding requirements set inFAR 52.204-21.

2. FAR 52.204-21 and Its Role in CMMC Level 1 Compliance

FAR 52.204-21establishes the baseline cybersecurity controls that contractors must implement to protectFCI.

The15 basic safeguarding requirementsinclude:

Limiting information accessto authorized users.

Identifying and authenticating usersbefore allowing system access.

Protecting transmitted FCIfrom unauthorized disclosure.

Monitoring and controlling connectionsto external systems.

Applying boundary protectionand cybersecurity measures.

Sanitizing mediabefore disposal.

Updating security configurationsto reduce vulnerabilities.

Providing physical securityprotections.

Controlling physical accessto systems that process FCI.

Enforcing multi-factor authentication (MFA) where applicable.

Patching vulnerabilitiesin software and hardware.

Limiting the use of removable media.

Creating and retaining system audit logs.

Performing risk-based security assessments.

Developing an incident response plan.

These 15 practices form thefoundationof CMMCLevel 1 Self-Assessment, ensuring contractorsmeet minimum cybersecurity expectationsfor handling FCI.

3. Why the Other Options Are Incorrect

B. 22 CFR 120-130:

This refers toInternational Traffic in Arms Regulations (ITAR), which controls the export of defense-related articles and services,notFCI safeguarding requirements.

C. DFARS 252.204-7011:

This clause refers toalternative line item structuresand does not pertain to cybersecurity or safeguarding FCI.

D. DFARS 252.204-7021:

This clause enforcesCMMC requirementsbut doesnot definebasic safeguarding controls. It requires compliance with CMMC but does not specify the foundational requirements (which come fromFAR 52.204-21for Level 1).

4. Official CMMC 2.0 Reference & Study Guide Alignment

TheCMMC 2.0 model documentationconfirms that Level 1 is focused on the15 practices from FAR 52.204-21.

TheDoD’s official CMMC Assessment Guidefor Level 1 explicitly states that meeting FAR 52.204-21 is therequirement for passing a Level 1 Self-Assessment.

TheCMMC 2.0 Scoping Guideclarifies that contractors handling onlyFCIand seekingLevel 1 certificationmust implementonly FAR 52.204-21security controls.

Final Confirmation:

The correct answer isA. FAR 52.204-21, as it directly governs the basic safeguarding ofFCIand is the foundational requirement for aLevel 1 Self-Assessmentin CMMC 2.0.

Scoping Requirements in CMMC Assessments

TheCMMC 2.0 Scoping GuideandCMMC Assessment Process (CAP) Documentclearly define what should be included in the scope of an assessment.

The assessment scope must cover:

All assets that process, store, or transmit FCI/CUI

Security Protection Assets (ESP)– these assets help protect FCI/CUI, such as firewalls, endpoint detection systems, and encryption mechanisms.

Thus, thecorrect scope includes both:

✅FCI/CUI Assets(Data storage, processing, or transmission assets)

✅Security Protection Assets (ESP)(Firewalls, security tools, etc.)

Why the Other Answers Are Incorrect

A. All assets documented in the business plan

❌Incorrect.Business plans may include assets unrelated to FCI/CUI, making this scopetoo broad. Only assets relevant to FCI/CUI should be assessed.

B. All assets regardless if they do or do not process, store, or transmit FCI/CUI

❌Incorrect. CMMC doesnotrequire organizations to include assets thathave no connection to FCI/CUI.

C. All entities, regardless of the line of business, associated with the organization

❌Incorrect.Only the assets relevant to FCI/CUI or security protection should be assessed. Unrelated business divisions (like a non-federal commercial division) areout-of-scope.

CMMC Official References

CMMC 2.0 Scoping Guide – Level 1 & Level 2

CMMC Assessment Process (CAP) Document

Thus,option D (All assets processing, storing, or transmitting FCI/CUI and security protection assets) is the correct answeras per official CMMC assessment scoping requirements.

The False Claims Act (31 U.S.C. §§ 3729–3733) imposes liability on companies that knowingly misrepresent compliance in order to receive or retain federal contracts. Penalties include treble damages (three times the government’s losses) plus additional penalties per claim.

Supporting Extracts from Official Content:

False Claims Act: “Any person who knowingly submits false claims to the Government is liable for three times the Government’s damages plus a penalty.”

DOJ Cyber-Fraud Initiative (2021): confirms the FCA is applied to cases of misrepresenting compliance with cybersecurity requirements.

Why Option D is Correct:

The applicable law is the False Claims Act, not a “Cyber Claims Act” (which does not exist).

The FCA specifies treble damages plus penalties, which exactly matches Option D.

References (Official CMMC v2.0 Governance and Source Documents):

False Claims Act (31 U.S.C. §§ 3729–3733).

DOJ Cyber-Fraud Initiative (2021), applied to CMMC-related compliance misrepresentation.

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Understanding the "Examine" Assessment Method in CMMC 2.0

CMMC 2.0 usesthree assessment methodsto evaluate security compliance:

Examine– Reviewing, inspecting, observing, studying, or analyzing assessment objects (e.g., policies, system documentation).

Interview– Speaking with personnel to verify knowledge and responsibilities.

Test– Performing technical validation to check system configurations.

Relevant CMMC 2.0 Reference:

TheCMMC Assessment Process (CAP)definesExamineas the method used toreview or analyze assessment objects, such as policies, procedures, configurations, and logs.

Why is the Correct Answer "Examine" (C)?

A. Test → Incorrect

"Test" involvesexecutinga function to validate its security (e.g., verifying access controls through a live system test).

B. Assess → Incorrect

"Assess" is a broad term; CMMC explicitly defines "Examine" as the method for reviewing documentation.

C. Examine → Correct

"Examine" is the official term forreviewing policies, procedures, configurations, or logs.

D. Interview → Incorrect

"Interview" involvesverbal discussions with personnel, not document analysis.

CMMC 2.0 References Supporting this Answer:

CMMC Assessment Process (CAP) Document

Defines "Examine" asanalyzing assessment objects (e.g., policies, procedures, logs, documentation).

NIST SP 800-171A

Specifies "Examine" as a method toreview security controls and configurations.

According to the CMMC Assessment Process (CAP) and the roles defined within the CMMC Ecosystem, the responsibility for the final determination of assessment findings rests with the C3PAO (Certified Third-Party Assessment Organization).

While the Assessment Team (Lead Assessor and Assessor) performs the legwork—conducting interviews, examining documents, and testing mechanisms—the C3PAO is the legal entity contracted by the OSC (Organization Seeking Certification) to conduct the assessment and issue the recommendation for certification.

Role of the C3PAO: The C3PAO provides the quality assurance and oversight. Once the Assessment Team completes the draft findings, the C3PAO performs a quality or "peer" review to ensure the findings are consistent with CMMC requirements. They hold the final authority over the Recommended Finding (Met, Not Met, or N/A) before it is uploaded to the eMASS (Enterprise Mission Assurance Support Service) or the designated DoD database.

Role of the Cyber AB (formerly CMMC-AB): The Board provides the accreditation for the C3PAOs and manages the ecosystem, but they do not participate in individual assessments or overrule specific technical findings of an assessment unless there is a formal appeal or ethics complaint.

Role of the Assessment Team Members: They collect evidence and make initial determinations, but their findings are subject to the C3PAO’s internal quality management system (QMS) review.

Role of the OSC Sponsor: The OSC is the entity being assessed; they have no authority over the interpretation of findings, though they may provide additional evidence during the remediation period.

Reference Documents:

CMMC Assessment Process (CAP) v1.0: Section on "Phase 3: Conduct Assessment" and "Phase 4: Reporting Results," which details the C3PAO’s responsibility for the final package.

C3PAO Authorization Requirements: Outlines the requirement for a quality management review of all assessment findings by the C3PAO before submission to the DoD.

Understanding the Role of a Registered Provider Organization (RPO)

ARegistered Provider Organization (RPO)is an entity recognized by theCMMC Accreditation Body (CMMC-AB)to provideconsulting servicesto organizations seekingCMMC certification.

Key Functions of an RPO

✅Consulting servicesto help companies prepare for CMMC assessments.

✅Guidance on security controlsrequired for compliance.

✅Assistance with documentation, policy development, and gap analysis.

✅Preparation for third-party CMMC assessmentsbutdoes not conduct official CMMC assessments(this is the role of a C3PAO).

Why "Consulting Services" is the Correct Answer?

Consulting servicesare thebroadest and most comprehensivefunction of an RPO.

RPOs do not conduct assessments(eliminating option D).

Training and educationmay be part of consulting but arenot the primary function(eliminating A and B).

Consulting includes training, guidance, documentation assistance, and security readiness, making it themost comprehensive service offered.

Breakdown of Answer Choices

Option

Description

Correct?

A. Training services

❌Incorrect–RPOs may provide training, but this isnot their primary function.

B. Education services

❌Incorrect–Similar to training, butnot the most comprehensive service.

C. Consulting services

✅Correct – The core function of an RPO is consulting, which includes various readiness services.

D. Assessment services

❌Incorrect–Only aC3PAO (Certified Third-Party Assessment Organization)can conductofficial CMMC assessments.

Official References from CMMC 2.0 Documentation

TheCMMC-AB RPO Programdefines an RPO as aconsulting organization that assists companies in preparing for CMMC certificationbutdoes not perform assessments.

Final Verification and Conclusion

The correct answer isC. Consulting services, asRPOs primarily provide advisory and readiness supportto organizations preparing forCMMC compliance.

Who is Responsible for Marking CUI?

According toDoDI 5200.48 (Controlled Unclassified Information (CUI)), the responsibility for marking CUI falls on theauthorized holder of the information.

Step-by-Step Breakdown:

Definition of an Authorized Holder

PerDoDI 5200.48, Section 3.4, anauthorized holderis anyone who has beengranted accessto CUI and is responsible for handling, safeguarding, and marking it according toDoD CUI policy.

The authorized holder may be:

ADoD employee

Acontractorhandling CUI

Anyorganization or individual authorizedto access and manage CUI

DoD Guidance on CUI Marking Responsibilities

DoDI 5200.48, Section 4.2:

The individual creating or handling CUImust apply the appropriate markings as per the DoD CUI Registry guidelines.

DoDI 5200.48, Section 5.2:

Themarking responsibility is NOT limited to a specific positionlike an Information Disclosure Official or a high-level DoD office.

Instead, it is theresponsibility of the person or entity generating, handling, or disseminatingthe CUI.

Why the Other Answer Choices Are Incorrect:

(A) DoD OUSD (Office of the Under Secretary of Defense):

The OUSD plays apolicy-setting rolebut doesnot directly mark CUI.

(C) Information Disclosure Official:

This role is responsible forpublic release of information, but marking CUI is the duty of theauthorized holdermanaging the data.

(D) Presidential authorized Original Classification Authority (OCA):

OCAs classifynational security information (Confidential, Secret, Top Secret), not CUI, which isnot classified information.

Final Validation from DoDI 5200.48:

PerDoDI 5200.48, authorized holders are explicitly responsible for marking CUI, making this the correct answer.

Step 1: Understanding AC.L1-3.1.22

AC.L1-3.1.22states:"Control information posted or processed on publicly accessible systems."

This control requires organizations toensure that FCI (Federal Contract Information) is not publicly postedor made accessible in an uncontrolled manner.

FCI must beprotected from unauthorized disclosure, even if it is not classified or CUI.

The CMMC Code of Professional Conduct applies to all CMMC assessors, practitioners, and ecosystem participants. Its guiding principles are: Objectivity, Information Integrity, and Higher Accountability.

Supporting Extracts from Official Content:

CMMC Code of Professional Conduct: “Guiding principles… include Objectivity, Information Integrity, and Higher Accountability.”

Why Option A is Correct:

These three principles are the official guiding values documented in the Code of Professional Conduct.

Options B, C, and D insert terms (“proper use of methods”) that are not part of the official guiding principles.

References (Official CMMC v2.0 Content):

CMMC Code of Professional Conduct.

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TheLimited Practice Deficiency Correction Evaluationprocess occurs when anOrganization Seeking Certification (OSC)has undergone aCMMC Level 2 Assessmentby aCertified Third-Party Assessment Organization (C3PAO)and hasunresolved deficienciesin some security practices.

According toCMMC 2.0 policy and DFARS 252.204-7021, OSCs can still achieveInterim Certificationif they meet theminimum thresholdof security practices while addressing deficiencies through aPlan of Action & Milestones (POA&M).

Minimum Number of Practices Required

TheCMMC 2.0 Interim Rulestates that an OSCmust meet at least 100 out of 110 practicesto qualify for aPOA&M-based remediation.

A maximum of 10 practices can be listed in the POA&Mfor later correction.

Failure to meet at least 100 practices results in failing the assessment outright, requiring a full reassessment after remediation.

Why "C. 100 Practices" is Correct?

The Lead Assessor can recommend POA&M placementonly if the OSC meets at least 100 practices.

Less than 100 practices scored as MET means the OSC does not qualify for a POA&Mand mustretest completely.

DFARS 252.204-7021 and CMMC 2.0 policiesconfirm the100-practice thresholdfor conditional certification.

Why Other Answers Are Incorrect?

A. 80 practices (Incorrect)– Falls well below the 100-practice requirement.

B. 88 practices (Incorrect)– Still below the POA&M eligibility threshold.

D. 110 practices (Incorrect)– While meeting 110 practices would be ideal,CMMC allows a POA&M option at 100 practices.

Conclusion

The correct answer isC. 100 practices, as this meets theminimum threshold for POA&M-based Interim Certification.

ThePhysical Protection (PE) domaininCMMC 2.0 Level 1includes the requirementPE.L1-3.10.3, which mandates that organizationsescort visitors and monitor their activity.

Breaking Down the Scenario:

TheCMMC Assessment Teamarrives at the OSC.

Thereceptionist acknowledges their arrival but does not verify credentials or escort themto the appropriate location.

Failing to verify visitor identity and failing to escort them is a violation of PE.L1-3.10.3.

Analysis of the Given Options:

A. PE.L1-3.10.3: Escort visitors and monitor visitor activity→✅Correct

This requirement ensures that visitorsdo not have unsupervised access to sensitive areas.

The receptionistshould have checked credentials and escorted the assessment team.

B. PE.L1-3.10.5: Control and manage physical access devices→❌Incorrect

This requirement refers to managingkeys, access badges, and security devices, which isnot the issue in this scenario.

C. PS.L2-3.9.1: Screen individuals prior to authorizing access to organizational systems containing CUI→❌Incorrect

This control applies to personnel screeningsbefore granting access to CUI systems, not physical visitor access.

D. PS.L2-3.9.2: Ensure that organizational systems containing CUI are protected during and after personnel actions such as terminations and transfers→❌Incorrect

This requirement deals withoffboarding employees and ensuring they no longer have system access. It isnot relevant to visitor escorting.

Official References Supporting the Correct Answer:

CMMC 2.0 Level 1 - PE.L1-3.10.3 (Physical Protection)

Requires organizations toescort visitors and monitor visitor activityat facilities containingFCI or CUI.

NIST SP 800-171 Rev. 2, Control 3.10.3

States thatvisitors must be escorted and monitored at all timesto prevent unauthorized access.

Conclusion:

Since the receptionist failed to verify credentials and escort the visitors, this violatesPE.L1-3.10.3.

✅Correct Answer: A. PE.L1-3.10.3: Escort visitors and monitor visitor activity

Step 1: Responsibility for Subcontractor Compliance

The prime contractor (contractor organization)is responsible for ensuring thatits subcontractorshave the requiredCMMC certification levelbefore engaging them inDoD contracts that involve FCI or CUI.

This requirement is enforced throughflow-down clausesinDFARS 252.204-7021, which mandates that subcontractors handlingCUImeet the necessaryCMMC Level 2 or Level 3 requirements.

Interview Selection in CMMC Assessments

During aCMMC assessment, theLead Assessormust work with theOrganization Seeking Certification (OSC)to select personnel for interviews. The goal is to:

✅Verify that personnel understand andperform security-related practices.

✅Ensure that individuals canexplain how they implement CMMC requirements.

✅Gain insight intoactual cybersecurity operationsrather than just documented policies.

The best interviewees are those whodirectly engage with security practicesand canclearly explain how they perform their duties.

Why "Providing Clarity and Understanding" Is Key

CMMC assessmentsrely on interviewsto validate that security practices areimplemented effectively.

Themost valuable intervieweesare those who canexplainhow security measures are appliedin day-to-day operations.

CMMC Assessment Process (CAP)emphasizes that assessors should speak tothose actively involved in security practicesrather than just senior management or policy owners.

Thus,option D is the correct choicebecause the Lead Assessor should prioritizeinterviewing personnel who can clearly explain how CMMC practices are implemented.

Why the Other Answers Are Incorrect

A. Have a security clearance.

❌Incorrect.Security clearance is not a requirementfor CMMC assessments. The focus is onpractical implementation of security controls, not classified work.

B. Be a senior person in the company.

❌Incorrect. Senior executives may not be involved in theactual implementation of security controls. The best interviewees are those whoperform the work, not just oversee it.

C. Demonstrate expertise on the CMMC requirements.

❌Incorrect. Whileunderstanding CMMC is important, expertise alonedoes not guarantee practical knowledgeof security controls. The key is thatinterviewees must provide clarity on how they perform security tasks.

CMMC Official References

CMMC Assessment Process (CAP) Document– Guides interview selection based on personnel who perform security functions.

NIST SP 800-171 & CMMC 2.0– Emphasize that cybersecurity controls must beactively implemented, not just documented.

Thus,option D (Provide clarity and understanding of their practice activities) is the correct answeras per official CMMC assessment guidelines.

Understanding the Role of the Lead Assessor in CMMC Assessments

TheLead Assessoris responsible for managing theAssessment Teamand ensuring that all team members meet the required qualifications as defined by theCMMC Accreditation Body (CMMC-AB)and theCybersecurity Maturity Model Certification (CMMC) Assessment Process (CAP) Guide.

Why the Correct Answer is "C. Lead Assessor"?

Lead Assessor’s Key Responsibilities (Per CAP Guide)

Verify team member qualificationsto ensure compliance with CMMC-AB guidelines.

Assignappropriate assessment tasksbased on team members’ expertise.

Ensure that theassessment is conducted in accordance with CMMC procedures.

Why Not the Other Options?

A. C3PAO (Certified Third-Party Assessor Organization)→Incorrect

AC3PAOis responsible fororganizing assessmentsand ensuring their execution, but itdoes not verify individual team member qualifications—that responsibility belongs to theLead Assessor.

B. CMMC-AB (CMMC Accreditation Body)→Incorrect

TheCMMC-ABestablishestraining and certification requirements, but itdoes not verify individual assessment team members—that responsibility is given to theLead Assessor.

D. CMMC Marketplace→Incorrect

TheCMMC Marketplacelists authorizedC3PAOs, Registered Practitioners (RPs), and Certified Professionals (CCPs)butdoes not verify assessment team qualifications.

Relevant CMMC 2.0 References:

CMMC Assessment Process (CAP) Guide– Defines theLead Assessor’s responsibilityfor verifying assessment team qualifications.

CMMC-AB Certification Guide– Specifies that the Lead Assessor must ensure all assessment team members meet CMMC-AB qualification standards.

Final Justification:

Since theLead Assessor is responsible for verifying assessment team member qualifications, the correct answer isC. Lead Assessor.

Who Verifies the Adequacy and Sufficiency of Evidence?

In the CMMC assessment process, it is theAssessment Teamthat is responsible for verifying whether thepractices and related componentshave been met for each in-scopeHost Unit, Supporting Organization/Unit, or enclave.

TheCMMC Assessment Teamis composed of certified assessors and led by aCertified CMMC Assessor (CCA). Their primary role is to:

Review evidenceprovided by theOrganization Seeking Certification (OSC).

Determine compliancewith required CMMC practices and processes.

Evaluate the sufficiencyof evidence to confirm that all required practices have been properly implemented.

Document and report findingsto the CMMC Accreditation Body (CMMC-AB).

Breakdown of Answer Choices

Option

Description

Correct?

A. OSC (Organization Seeking Certification)

The OSC provides documentation and evidence but doesnotverify its adequacy.

❌Incorrect

B. Assessment Team

✅Responsible for verifying the adequacy and sufficiency of evidence.

✅Correct

C. Authorizing Official

Typically refers to an official responsible for system accreditation underNIST RMF, not CMMC.

❌Incorrect

D. Assessment Official

Not a defined role in the CMMC framework.

❌Incorrect

Official Reference from CMMC 2.0 Documentation

TheCMMC Assessment Process Guide(CAP) outlines theAssessment Team'sresponsibility in verifying evidence.

TheCMMC Assessment Teamevaluates whether theorganization's cybersecurity practices meet CMMC requirements.

Final Verification and Conclusion

The correct answer isB. Assessment Team, as per CMMC 2.0 documentation and official assessment processes.

Per the CMMC Scoping Guidance, External Service Providers (ESPs) must be included in scope if they process, store, or transmit CUI or FCI on behalf of the OSC. However, ESPs do not themselves receive a separate CMMC certification unless they undergo their own assessment or an enterprise-level certification is conducted. Their environment is assessed only as part of the OSC’s scope.

Reference Documents:

CMMC Scoping Guidance for Level 2

CMMC Model v2.0 Overview

Understanding CMMC Assessment Procedures

ACMMC assessment procedureconsists of:

Assessment Objective– Defines what is being evaluated and the expected outcome.

Assessment Methods– Specifies how the evaluation is conducted (e.g.,examination, interviews, testing).

Assessment Objects– Identifies what is being evaluated, such as policies, systems, or people.

Why the Correct Answer is "C"?

Assessment Objectivesincludedetermination statementsthat describe the expected outcome for each CMMC security practice.

These statements define whether a practice has beenadequately implementedbased ondocumented evidence and assessment findings.

TheCMMC Assessment Process (CAP) GuideandNIST SP 800-171Aspecify that each practice has a determination statement guiding assessment decisions.

Why Not the Other Options?

A. Specifications and mechanisms→Incorrect

These belong toassessment objects, which refer to the systems, policies, and mechanisms being evaluated.

B. Examination, interviews, and testing→Incorrect

These areassessment methods, which describe how assessorsverifycompliance (e.g., through interviews or testing).

D. Exercising assessment objects under specified conditions→Incorrect

This refers toassessment testing, which is a method, not an assessment objective.

Relevant CMMC 2.0 References:

CMMC Assessment Process (CAP) Guide– Describes determination statements as the core of assessment objectives.

NIST SP 800-171A– Defines determination statements as a key element of evaluating security controls.

Final Justification:

Since anassessment objectiveincludes adetermination statementthat describes whether a practice is implemented properly, the correct answer isC.

Understanding C3PAO Requirements

ACertified Third-Party Assessment Organization (C3PAO)is an entityauthorized by the CMMC Accreditation Body (CMMC-AB)to conductCMMC Level 2 Assessmentsfor organizations handlingControlled Unclassified Information (CUI).

Key Requirements for a C3PAO to Conduct Assessments:

✔Must be authorized by CMMC-AB before conducting assessments.

✔Must meet CMMC-AB and DoD cybersecurity and process requirements.

✔Must comply with ISO/IEC 17020 standards for inspection bodies.

✔Must undergo a rigorous vetting process, including cybersecurity verification.

Why is the Correct Answer "D" (A C3PAO must be authorized by CMMC-AB before being able to conduct assessments)?

A. An authorized C3PAO must meet some DoD and all ISO/IEC 17020 requirements → Incorrect

C3PAOs must comply with CMMC-AB authorization requirementsbefore performing assessments.

While they must align withISO/IEC 17020, they donotnecessarily meet all requirements upfront.

B. An accredited C3PAO must meet all DoD and some ISO/IEC 17020 requirements → Incorrect

C3PAOs are not accredited by DoD; they areauthorized by CMMC-ABto perform assessments.

Accreditation follows full compliance with CMMC-AB and ISO/IEC 17020 requirements.

C. A C3PAO must be accredited by DoD before being able to conduct assessments → Incorrect

The DoD does not directly accredit C3PAOs—CMMC-AB is responsible forauthorization and oversight.

D. A C3PAO must be authorized by CMMC-AB before being able to conduct assessments → Correct

CMMC-AB grants authorization to C3PAOs, allowing them to perform assessmentsonly after meeting specific requirements.

CMMC 2.0 References Supporting This Answer:

CMMC-AB Certified Third-Party Assessment Organization (C3PAO) Guidelines

States thatC3PAOs must receive CMMC-AB authorization before conducting assessments.

CMMC 2.0 Assessment Process (CAP) Document

Specifies that onlyC3PAOs authorized by CMMC-AB can conduct official CMMC assessments.

ISO/IEC 17020 Compliance for C3PAOs

Defines theinspection body requirements for C3PAOs, which must be met for accreditation.

According to the CMMC Assessment Process (CAP) and the CMMC Level 2 Assessment Guide, the assessment methodology is derived directly from NIST SP 800-171A. The framework defines three fundamental assessment methods used by a C3PAO (Certified Third-Party Assessment Organization) to determine if a practice is "Met." These are:

Examine: This involves reviewing, inspecting, or analyzing assessment objects. As per the CCP curriculum, these objects include documents (policies, procedures, plans), mechanisms (hardware, software, or firmware safeguards), or activities (logs, system configurations).

Interview: This involves holding discussions with personnel within the Organization Seeking Certification (OSC) to facilitate understanding or obtain evidence.

Test: This involves exercising assessment objects (mechanisms or activities) under specific conditions to compare actual behavior with expected behavior.

Detailed Breakdown of the Options:

Option A is correct because "documents, mechanisms, or activities" are the specific categories of assessment objects defined in the CMMC/NIST 171A methodology that are subjected to the Examine method.

Option B refers to specific technical components, which are types of mechanisms but do not represent the full scope of the assessment methods.

Option C lists specific examples of evidence, but is not the formal definition of the "Examine" method components.

Option D describes specific "Test" or "Interview" activities rather than the categorical objects of the "Examine" method.

Reference Documents:

CMMC Assessment Guide, Level 2: Section on "Assessment Methods" (derived from NIST SP 800-171A).

CMMC Assessment Process (CAP): Defines the evidence collection phase and the application of Examine, Interview, and Test (E-I-T).

NIST SP 800-171A: The source document defining the "Assessment Objects" as specifications (documents), mechanisms, and activities.

A Restricted Information System (IS) is defined as an asset that cannot meet modern security controls but is still needed for contract performance. These systems may be declared out of scope if they are properly isolated, mitigated, and documented. A legacy Windows 95 computer meets the definition of a restricted IS.

Supporting Extracts from Official Content:

CMMC Scoping Guide (Level 2): “Restricted IS assets are those that cannot reasonably apply security requirements due to legacy or operational constraints. They are not assessed but must be identified and protected by alternative methods.”

Why Option B is Correct:

The Windows 95 system is an example of a restricted IS, so it can be scoped out.

Option A is incorrect — the asset is not handling CUI in this case.

Option C is incorrect — government property designation does not define scope.

Option D is incorrect — while it is “legacy,” it is not classified as OT; the correct CMMC term is restricted IS.

References (Official CMMC v2.0 Content):

CMMC Scoping Guide, Level 1 and Level 2 – Restricted IS definition.

===========

Understanding Federal Contract Information (FCI)

Federal Contract Information (FCI) is defined by48 CFR 52.204-21(Basic Safeguarding of Covered Contractor Information Systems). FCI refers to information that:

Is NOT intended for public release.

Is provided by or generated for the government under a contract.

Is necessary to develop or deliver a product or service to the government.

Excludes publicly available government information(such as information on public websites).

Excludes simple transactional information(e.g., necessary to process payments).

In the context ofCMMC 2.0, organizations thatprocess, store, or transmit FCImust meetCMMC Level 1 (Foundational), which requires implementing17 basic safeguarding practicesoutlined inFAR 52.204-21.

Why is the Correct Answer FCI (D)?

A. CDI (Controlled Defense Information)→ Incorrect

This term was used inDFARS 252.204-7012but has been replaced byCUI (Controlled Unclassified Information)in CMMC discussions.

B. CTI (Cyber Threat Intelligence)→ Incorrect

This refers to intelligence on cyber threats, tactics, and indicators, not contractual data.

C. CUI (Controlled Unclassified Information)→ Incorrect

CUI is sensitive information requiring additional safeguarding but is a separate category from FCI.

D. FCI (Federal Contract Information)→Correct

The definition of FCI explicitly matches the description given in the question.

CMMC 2.0 References Supporting this Answer:

FAR 52.204-21 (Basic Safeguarding of Covered Contractor Information Systems)

Defines FCI and the required safeguards.

Establishes17 cybersecurity practicesfor FCI protection.

CMMC 2.0 Framework

Level 1 (Foundational)is required for contractors handlingFCI.

Ensures compliance withbasic safeguarding requirementsoutlined inFAR 52.204-21.

NIST SP 800-171 and DFARS 252.204-7012

FCI doesnotrequire compliance withNIST SP 800-171, butCUI does.

Understanding the CMMC Level 2 Assessment Process

When anOrganization Seeking Certification (OSC)engages aCertified Third-Party Assessment Organization (C3PAO)to conduct aCMMC Level 2 Assessment, anAssessment Planis developed to outline the scope, methodology, and logistics of the assessment.

Who Signs Off on the Assessment Plan?

According to theCMMC Assessment Process (CAP) Guide, theAssessment Plan must be formally agreed upon and signed off by:

Lead Assessor– The individual responsible for overseeing the execution of the assessment.

C3PAO (Certified Third-Party Assessment Organization)– The entity conducting the assessment.

Why "C. Lead Assessor and C3PAO" is Correct?

TheLead Assessorensures that theAssessment Plan aligns with CMMC-AB and DoD requirements, including methodology, objectives, and evidence collection.

TheC3PAOprovides organizational approval, confirming that the assessment is conducted according toCMMC-AB rules and contractual agreements.

Why Other Answers Are Incorrect?

A. OSC and Sponsor (Incorrect)

TheOSC (Organization Seeking Certification)is involved in planning but does not sign off on the plan.

Asponsoris not part of the sign-off process in CMMC assessments.

B. OSC and CMMC-AB (Incorrect)

TheOSCdoes not formally approve theAssessment Plan—this responsibility belongs to the assessment team.

TheCMMC-ABdoes not sign off on individualAssessment Plans.

D. C3PAO and Assessment Official (Incorrect)

"Assessment Official" isnot a defined rolein the CMMC assessment process.

TheC3PAOis involved, but it must be theLead Assessorwho signs off, not an unspecified official.

Conclusion

The correct answer isC. Lead Assessor and C3PAO.

TheLead Assessorensures assessment integrity, while theC3PAOprovides official authorization.

Understanding the Definition of a "Practice" in CMMC 2.0

In CMMC 2.0, the term"practice"refers to specific cybersecurity activities that organizations must implement to achieve compliance with defined security objectives.

Step-by-Step Breakdown:

Definition from CMMC Documentation:

According to theCMMC Model Overview, apracticeis defined as:

"An activity or activities performed to meet defined CMMC objectives."

This means that practices are theactions and implementations required to protect Controlled Unclassified Information (CUI) and Federal Contract Information (FCI).

How Practices Fit into CMMC 2.0:

CMMC 2.0 Level 1 consists of17 practices, which align withFAR 52.204-21 (Basic Safeguarding of Covered Contractor Information Systems).

CMMC 2.0 Level 2 consists of110 practices, aligned directly withNIST SP 800-171 Rev. 2.

Each practice has anobjectivethat must be met to demonstrate compliance.

Official CMMC 2.0 References:

TheCMMC 2.0 Model Documentationdefines practices as "the fundamental cybersecurity activities necessary to achieve security objectives."

TheCMMC Assessment Process (CAP) Guideoutlines how assessors verify the implementation of these practices during an assessment.

TheNIST SP 800-171A Guideprovidesassessment objectivesfor each practice to ensure they are implemented effectively.

Comparison with Other Answer Choices:

A. A business transaction→ Incorrect. CMMC practices focus on cybersecurity activities, not financial or operational transactions.

B. A condition arrived at by experience or exercise→ Incorrect. While practices evolve over time, they are defined activities, not just experience-based conditions.

C. A series of changes taking place in a defined manner→ Incorrect. A practice is a set of security actions, not just a process of change.

Conclusion:

ACMMC practicerefers to specificcybersecurity activities performed to meet defined CMMC objectives. This makesOption Dthe correct answer.

According to the CMMC Assessment Process (CAP) and the CMMC Level 2 Assessment Guide, an assessment finding is built upon evidence collected through three primary methods: Examine, Interview, and Test. The term "affirmation" in this context refers to the verbal or written statements provided by the Organization Seeking Certification (OSC) personnel to confirm that a practice is implemented as described.

Broad Definition of Evidence: The CAP allows for a wide variety of artifacts to be used as evidence. "Affirmations" are typically captured during the Interview process or found within Examine objects.

Validity of Formats:

Interviews: Direct verbal affirmations from subject matter experts (SMEs).

Emails and Messaging (Chat/Slack/Teams): These are considered valid "Examine" objects (records/artifacts) that serve as written affirmations or evidence of an activity (e.g., an email chain approving a firewall change or a message confirming a system update).

Presentations and Demonstrations: These fall under "Examine" (the presentation slides) and "Test/Examine" (the demonstration of a mechanism).

Why Option C is correct: The CMMC framework does not disqualify digital communications like emails or messaging as evidence. In fact, these are often the primary artifacts used to prove that a process (like an approval workflow or notification) is occurring in practice. As long as the assessor can verify the authenticity and integrity of these communications, they are appropriate for collecting affirmations.

Why Option D is less accurate: While screenshots are indeed used as evidence, the core question asks if thespecificlist (interviews, demonstrations, emails, messaging, presentations) is appropriate. Option C directly validates the list provided in the prompt without introducing extraneous elements like screenshots, which—while valid—are not the focus of the "appropriate" determination for the items listed.

Reference Documents:

CMMC Assessment Process (CAP) v1.0: Section 3.4 (Collect and Verify Evidence), which discusses the types of artifacts and "human evidence" (interviews) that support findings.

CMMC Level 2 Assessment Guide: "Assessment Methods" section, clarifying that evidence can include any records (electronic or physical) that demonstrate the implementation of a practice.

NIST SP 800-171A: The underlying standard for assessment procedures, which encourages the use of various evidence types to satisfy assessment objectives.

Per DoDI 5200.48, Controlled Unclassified Information (CUI), the minimum marking requirement is that the word “CUI” must appear in the header and footer of each page of a document containing CUI. Additional markings such as portion markings or cover sheets may be applied depending on the situation, but the minimum baseline requirement is header and footer placement of "CUI".

Reference Documents:

DoDI 5200.48,Controlled Unclassified Information (CUI)

ACertified Third-Party Assessor Organization (C3PAO)is responsible for conductingCMMC Level 2 Assessments. Before the assessment begins, the C3PAO must develop anAssessment Plan, which includes several key elements.

The part of the plan that captures:

✅Names of interviewees

✅Facilities to be utilized

✅Estimated costs

✅Assessment schedule

falls under the"Identify Resources and Schedule"section of the plan.

Step-by-Step Breakdown:

✅1. Identify Resources and Schedule

This section of theCMMC Assessment Planoutlines:

Thepersonnelinvolved (e.g., interviewees, assessors).

Thelocationswhere the assessment will take place.

Thetimeline and scheduling details.

Theestimated costsassociated with the assessment.

This ensures that all necessaryresourcesare allocated and that the assessment proceeds as planned.

✅2. Why the Other Answer Choices Are Incorrect:

(B) Select Assessment Team Members❌

This section focuses onchoosing the assessorswho will conduct the evaluation, not listing interviewees and facilities.

(C) Identify and Manage Assessment Risks❌

This part of the plandocuments risks(e.g., scheduling conflicts, data access issues), but it doesnot outline names, facilities, or costs.

(D) Select and Develop the Evidence Collection Approach❌

This step defineshowevidence will be gathered (e.g., document reviews, interviews, system testing) but doesnot focus on logistics.

Final Validation from CMMC Documentation:

TheCMMC Assessment Process Guidestates thatresource identification and schedulingare essential for organizing the assessment. Since this sectioncaptures interviewees, facilities, costs, and the schedule, the correct answer is:

✅A. Identify resources and schedule.

Step 1: Understanding the Role of the DoD in CMMC

TheU.S. Department of Defense (DoD)is the entity thatrequiresorganizations handlingFederal Contract Information (FCI)orControlled Unclassified Information (CUI)to undergo an assessment to determine their required level ofcybersecurity maturityunderCMMC 2.0.

This requirement stems from theDFARS 252.204-7021 clause, which mandates CMMC certification for contractors handling FCI or CUI.

Understanding the Role of a CCP in CMMC Assessments

ACertified CMMC Professional (CCP)is responsible for assistingCertified CMMC Assessors (CCA)in evaluating anOrganization Seeking Certification (OSC)during a CMMC assessment. One key aspect of this process isconducting interviewswith Subject Matter Experts (SMEs) to verify security practices.

Ensuring that interviewees canspeak freely without fear of retaliationiscriticalto obtainingaccurate and unbiased informationabout the implementation of security controls.

Step-by-Step Breakdown:

CMMC Assessment Process and the Role of Interviews

TheCMMC Assessment Guide (Level 2)outlines that interviews are conducted to confirm that security practices are effectively implemented.

Interviewees mustfeel comfortable sharing candid responseswithout concern that their statements will lead tonegative consequenceswithin the organization.

Ensuring Confidentiality and Non-Attribution

DoD Assessment Methodologyspecifies that interviews should be conductedconfidentiallytoprotect the identity of interviewees.

TheCMMC Code of Professional Conduct (CoPC)for assessors and professionals reinforces the requirement to maintain theconfidentialityof assessment participants.

Non-attributionensures that responses are used for evaluation purposeswithout linking statements to specific individuals.

Why the Other Answer Choices Are Incorrect:

(A) Performed in groups for more efficient use of resources:

Group interviews may prevent individuals from speaking openly.

Employees might be hesitant to contradict leadership or peers.

(B) Recorded for inclusion in the Final Recommended Findings report:

Interviews arenot directly recorded or attributedin assessment reports.

Instead, findings are documentedwithout identifying specific individuals.

(D) Mapped to specific CMMC practices to clearly delineate which practice is being evaluated:

While responsesinformwhich practices are being assessed, theprimary goalof an interview is to ensure accurate,unbiased information gathering.

Final Validation from CMMC Documentation:

According to theCMMC Assessment Guide and DoD Assessment Methodology, interview confidentiality iscrucialto gatheringaccurateandunbiasedresponses. This makesconfidentiality and non-attributionthe correct answer.

Thus, the correct answer is:

C. Confidential and non-attributable so interviewees can speak without fear of reprisal.

During a Readiness Review (Phase 1), the purpose is to validate whether an OSC is prepared to move forward with a formal assessment. The CAP specifies that the Lead Assessor must collect sufficient evidence for each practice to make a preliminary determination of readiness.

Supporting Extracts from Official Content:

CAP v2.0, Readiness Review (§2.14): “The Lead Assessor must collect a sufficient amount of evidence for each practice to determine the OSC’s readiness.”

Why Option A is Correct:

The requirement is for sufficient evidence; CAP does not mandate a set number of assessment objects or methods.

Options B, C, and D incorrectly suggest minimum counts or methods that are not part of the readiness review requirements.

References (Official CMMC v2.0 Content):

CMMC Assessment Process (CAP) v2.0, Phase 1 Readiness Review.

===========

The presence of badge readers, PIN code pads, and keys directly corresponds to controlling and managing physical access devices, which maps to PE.L1-3.10.5 under the Physical Protection (PE) domain. This practice ensures that only authorized individuals have access to physical areas containing information systems.

The other options address unrelated requirements:

MP.L2-3.8.5 addresses marking CUI media,

SI.L2-3.14.3 addresses monitoring security alerts,

PS.L2-3.9.2 addresses protections during personnel changes.

Reference Documents:

CMMC Model v2.0, Level 1–3 Practices

NIST SP 800-171 Rev. 2, Control PE-3

Understanding SC.L2-3.13.14 – Control and Monitor the Use of VoIP Technologies

TheCMMC 2.0 Level 2requirementSC.L2-3.13.14comes fromNIST SP 800-171, Security Requirement 3.13.14, which mandates that organizations mustcontrol and monitor the use of VoIP (Voice over Internet Protocol) technologiesif used within their system boundary.

If a systemdoes not use VoIP technology, then this control isNot Applicable (N/A)because there is nothing to assess.

Why Option D is Correct

When a requirement is marked as Not Applicable (N/A), it means the OSC does not use the technology or process covered by that controlwithin its assessment boundary.

No assessment procedures are neededsince there is no VoIP system to evaluate.

Option A (Existing telephone system in scope)is incorrect becausetraditional (non-VoIP) telephone systems are not covered by SC.L2-3.13.14—only VoIP is within scope.

Option B (Error, contact the Lead Assessor)is incorrect because markingSC.L2-3.13.14 as N/A is valid if VoIP is not used. This is not an error.

Option C (VoIP in scope but using FIPS-validated encryption, so it doesn’t need to be assessed)is incorrect becauseeven if VoIP uses FIPS-validated encryption, the control would still need to be assessed to ensure monitoring and usage control are in place.

Official CMMC Documentation References

CMMC 2.0 Level 2 Assessment Guide – SC.L2-3.13.14

NIST SP 800-171, Security Requirement 3.13.14

CMMC Scoping Guidance – Determining Not Applicable (N/A) Practices

Final Verification

IfVoIP is not used within the OSC’s system boundary, the control does not require assessment, making Option D the correct answer.

Understanding CUI Markings and the Role of NARA

What Does "CUI//SP-PRVCY//FED Only" Mean?

The email containsControlled Unclassified Information (CUI)withspecific categories and dissemination controls.

CUI//SP-PRVCY//FED Onlybreaks down as follows:

CUI→ Controlled Unclassified Information designation.

SP-PRVCY→Specifiedcategory forPrivacy Information(SP stands for "Specified").

FED Only→ Restriction forFederal Government use only(not for contractors or the public).

Who Maintains the Official CUI Registry?

TheNational Archives and Records Administration (NARA) oversees the CUI Programand maintains the officialCUI Registry(https://www.archives.gov/cui).

The CUI Registry providesdefinitions, marking guidance, and categoriesfor all CUI labels, including "SP-PRVCY" and dissemination controls like "FED Only."

Why NARA is the Correct Answer:

NARA is the governing body responsible for defining and managing CUI markings.

Any organization handling CUI shouldrefer to the NARA CUI Registryfor official marking interpretations.

DoD contractors and other organizationsmust comply with NARA guidelines when handling, marking, and disseminating CUI.

Clarification of Incorrect Options:

B. CMMC-AB– TheCMMC Accreditation Bodymanages certification assessments butdoes not define or interpret CUI markings.

C. DoD Contractors FAQ Page– The DoD may provide general contractor guidance, butCUI markings are governed by NARA, not an FAQ page.

D. DoD 239.7601 Definitions Page– This refers to generalDoD acquisition definitions, butCUI categories and markings fall under NARA’s authority.

Understanding NIST SP 800-88 Rev. 1 and Media Sanitization

TheNIST Special Publication (SP) 800-88 Revision 1, Guidelines for Media Sanitization, provides guidance onsecure disposalof data from various types of storage media to prevent unauthorized access or recovery.

Three Categories of Data Disposal in NIST SP 800-88 Rev. 1

Clear

Useslogical techniquesto remove data from media, making it difficult to recover usingstandard system functions.

Example:Overwriting all datawith binary zeros or ones on a hard drive.

Applies to:Magnetic media, solid-state drives (SSD), and non-volatile memorywhen the media isreused within the same security environment.

Purge

Usesadvanced techniquesto make data recoveryinfeasible, even with forensic tools.

Example:Degaussinga magnetic hard drive orcryptographic erasure(deleting encryption keys).

Applies to:Media that is leaving organizational control or requires a higher level of assurance than "Clear".

Destroy

Physicallydamages the mediaso that data recovery isimpossible.

Example:Shredding, incinerating, pulverizing, or disintegratingstorage devices.

Applies to:Highly sensitive data that must be permanently eliminated.

Why "A. Clear, Purge, Destroy" is Correct?

B. Clear, Redact, Destroy (Incorrect)– "Redact" is a term used for document sanitization,notdata disposal.

C. Clear, Overwrite, Purge (Incorrect)– "Overwrite" is a method within "Clear," but it isnot a top-level categoryin NIST SP 800-88.

D. Clear, Overwrite, Destroy (Incorrect)– "Overwrite" is a sub-method of "Clear," but "Purge" is missing, making this incorrect.

Conclusion

The correct answer isA. Clear, Purge, Destroy, as these are thethree official categoriesof data disposal inNIST SP 800-88 Revision 1.

Understanding the Official CUI Registry

TheControlled Unclassified Information (CUI) Registryis theauthoritative sourcefor all federal agencies'CUI categories and indices. It is maintained by theNational Archives and Records Administration (NARA)and provides:

✅Acomprehensive listof CUI categories and subcategories.

✅Details onwho can handle, store, and share CUI.

✅Guidance onCUI marking and safeguarding requirements.

Why "Official CUI Registry" is Correct?

TheOfficial CUI Registryis theonly federal resourcethat listsall CUI categories and agencies that use them.

32 CFR Section 2002(Option A) definesCUI policiesbut doesnotprovide a full listing of CUI categories.

Executive Order 13556(Option C) established theCUI Programbut doesnotmaintain an active list of categories.

The "Official CMMC Registry" (Option D) does not exist—CMMC is a security framework, not a CUI classification system.

Breakdown of Answer Choices

Option

Description

Correct?

A. 32 CFR Section 2002

❌Incorrect–Defines CUI program rules butdoes not listcategories.

B. Official CUI Registry

✅Correct – The registry contains the full list of CUI categories.

C. Executive Order 13556

❌Incorrect–Established the CUI program butdoes not maintain a category list.

D. Official CMMC Registry

❌Incorrect–No such registry exists; CMMC is a cybersecurity framework, not a CUI classification system.

Official References from CMMC 2.0 and Federal Documentation

National Archives (NARA) CUI Registry– The authoritative source forall federal agency CUI categories.

32 CFR 2002– Provides CUIpolicy guidancebut refers agencies to theOfficial CUI Registryfor classification.

Final Verification and Conclusion

The correct answer isB. Official CUI Registry, as it is theonly official source listing all federal agencies' CUI indices and categories.

Understanding the Definition of an Agreement in the CMMC-AB Code of Professional Conduct

TheCMMC-AB Code of Professional Conductdefines anagreementasany contract between two legal entities. This includes:

✔Contracts between an OSC and a C3PAOfor CMMC assessments.

✔Service agreements between cybersecurity providers and defense contractors.

✔Any formal, legally binding arrangement related to CMMC compliance.

Why is the Correct Answer "D. Agreement"?

A. Union → Incorrect

Auniontypically refers to anorganization representing workersand is not used to describe acontractual relationship.

B. Accord → Incorrect

While anaccordcan mean an agreement, it isnot the standard legal term for a binding contractin CMMC documentation.

C. Alliance → Incorrect

Analliancerefers to astrategic partnership, but does not necessarily imply alegally binding contract.

D. Agreement → Correct

TheCMMC-AB Code of Professional Conductdefines anagreementas anylegally binding contract between two entities.

CMMC 2.0 References Supporting This Answer:

CMMC-AB Code of Professional Conduct

Defines"Agreement"as alegally binding contract between two parties.

CMMC-AB Licensed Training and Assessment Provider Guidelines

Requires that all engagementsbe governed by a formal agreement (contract) between the parties.

DFARS and CMMC Certification Contracts

States thatOSC-C3PAO relationships must be formalized through a legal agreement.

Understanding Training Requirements in CMMC

The requirement for ensuring thatpersonnel are trained to carry out their assigned information security-related duties and responsibilitiesfirst appears inCMMC Level 2as part ofNIST SP 800-171 control AT.L2-3.2.1.

Key Details on the Training Requirement:

✔AT.L2-3.2.1: "Ensure that personnel are trained to carry out their assigned information security-related duties and responsibilities."

✔This control is derived fromNIST SP 800-171and applies toCMMC Level 2 (Advanced).

✔It ensures that employees handlingControlled Unclassified Information (CUI)understand theircybersecurity responsibilities.

Why is the Correct Answer "B. Level 2"?

A. Level 1 → Incorrect

CMMC Level 1 does not include this training requirement.Level 1 focuses on basic safeguarding ofFederal Contract Information (FCI)but doesnot require formal cybersecurity training.

B. Level 2 → Correct

The training requirement (AT.L2-3.2.1) first appears in CMMC Level 2, which aligns withNIST SP 800-171.

C. Level 3 → Incorrect

The training requirementalready exists in Level 2. Level 3 builds on Level 2 with additionalrisk management and advanced cybersecurity controls, but training is introduced at Level 2.

D. All levels → Incorrect

CMMC Level 1 does not include this requirement—it is first introduced in Level 2.

CMMC 2.0 References Supporting This Answer:

NIST SP 800-171 (Requirement 3.2.1)

Defines themandatory training requirementfor personnel handling CUI.

CMMC Assessment Guide for Level 2

ListsAT.L2-3.2.1as a required practice under Level 2.

CMMC 2.0 Model Overview

Confirms thatCMMC Level 2 aligns with NIST SP 800-171, which includes security training requirements.

When preparing forCMMC compliance, organizations must ensure that theirnetwork configurations align with required cybersecurity controls. Ifnetwork administratorsdisagree on certain configurations, the mostobjective and accurateway to resolve the disagreement is by referencingofficial CMMC guidanceandNIST SP 800-171 requirements, which form the foundation of CMMC Level 2.

Step-by-Step Breakdown:

CMMC Assessment Guides as the Primary Reference

TheCMMC Assessment Guides (Level 1 & Level 2)provide clearinterpretationsof security practices.

Theyexplain how each practice should be implemented and assessedduring certification.

NIST SP 800-171 as the Compliance Baseline

CMMC Level 2is based directly onNIST SP 800-171, which outlines the110 security controlsrequired for protectingControlled Unclassified Information (CUI).

Network configurations must complywith NIST-defined security requirements, including:

Access Control (AC) – Ensuring least privilege principles.

Audit and Accountability (AU) – Logging and monitoring network activity.

System and Communications Protection (SC) – Secure network design and encryption.

Why the Other Answer Choices Are Incorrect:

(A) Consult with the CEO of the company:

ACEO is not necessarily a cybersecurity expertand may not be familiar with CMMC technical requirements.

Technical compliance decisions should be based onCMMC and NISTframeworks, not executive opinions.

(C) Go with the network administrator's ideas with the least stringent controls:

Choosingless stringent controls increases security riskand could lead toCMMC non-compliance.

(D) Go with the network administrator's ideas with the most stringent controls:

While security is important,more stringent controlsmay introduceoperational inefficienciesorunnecessary coststhat are not required for compliance.

The correct approach is to implement what is required by CMMC and NIST SP 800-171, no more and no less.

Final Validation from CMMC Documentation:

TheCMMC Assessment GuidesandNIST SP 800-171 Rev. 2areofficial sourcesthat provide the most reliable guidance on compliance.

CMMC Level 2 is entirely based on NIST SP 800-171, making it the definitive source for resolving security disagreements.

Thus, the correct answer is:

B. Consult the CMMC Assessment Guides and NIST SP 800-171.

Understanding Restricted Information Systems (IS) in CMMC Scoping

InCMMC 2.0,Specialized Assetsrefer to assets that do not fit traditional IT system categories but still play a role inprocessing, storing, or transmitting Federal Contract Information (FCI) or Controlled Unclassified Information (CUI). The four categories ofSpecialized Assetsin theCMMC Scoping Guideinclude:

Internet of Things (IoT) Devices– Smart or network-connected devices.

Restricted Information Systems (Restricted IS)– Systems that arecontractually requiredto beconfigured to government specifications.

Test Equipment– Devices used for specialized testing or measurement.

Government Property– Equipment owned by theU.S. Governmentbut used by contractors.

Why "B. Restricted IS" is Correct?

The contractor-owned systems in question areconfigured based on government requirementsandused to support a DoD contract.

Restricted ISassets arecontractually requiredto meet government security requirements andhandle DoD-related information.

These systemsdo not fall under general IT assets but instead require special handling, making them a Restricted ISper theCMMC Scoping Guide.

Why Other Answers Are Incorrect?

A. IoT (Incorrect)

IoT devices includesmart devices, sensors, and embedded systems, but the contractor's business systems are not classified as IoT.

C. Test Equipment (Incorrect)

The contractor’s systems areused for handling FCI, not for testing or measurement.

D. Government Property (Incorrect)

The systems arecontractor-owned, not owned by theU.S. Government, so they do not qualify asGovernment Property.

Conclusion

The correct answer isB. Restricted IS, as the systems arecontractor-owned but must follow DoD security requirements.

Understanding the Role of NIST SP 800-171 in CMMC

NIST Special Publication (SP)800-171is the definitive standard for protectingControlled Unclassified Information (CUI)innonfederal systems and organizations. It provides security requirements that organizations handling CUImust implementto protect sensitive government information.

This document isthe foundationofCMMC 2.0 Level 2compliance, which aligns directly withNIST SP 800-171 Rev. 2requirements.

Breakdown of Answer Choices

NIST SP

Title

Relevance to CMMC

NIST SP 800-37

Risk Management Framework (RMF)

Focuses on risk assessment for federal agencies, not directly applicable to CUI in nonfederal systems.

NIST SP 800-53

Security and Privacy Controls for Federal Systems

Provides security controls forfederalinformation systems, not specifically tailored tononfederalorganizations handling CUI.

NIST SP 800-88

Guidelines for Media Sanitization

Covers secure data destruction and disposal, not overall CUI protection.

NIST SP 800-171

Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations

✅Correct Answer – Directly addresses CUI protection in contractor systems.

Key Requirements from NIST SP 800-171

The document outlines110 security controlsgrouped into14 families, including:

Access Control (AC)– Restrict access to authorized users.

Audit and Accountability (AU)– Maintain system logs and monitor activity.

Incident Response (IR)– Establish an incident response plan.

System and Communications Protection (SC)– Encrypt CUI in transit and at rest.

These controls serve as thebaseline requirementsfor organizations seekingCMMC Level 2 certificationto work withCUI.

Official Reference from CMMC 2.0 Documentation

CMMC 2.0 Level 2alignsdirectlywith NIST SP800-171 Rev. 2.

DoD contractors that handle CUImustcomply withall 110 controlsfrom NIST SP800-171.

Final Verification and Conclusion

The correct answer isD. NIST SP 800-171, as this documentexplicitly definesthe cybersecurity requirements for protectingCUI in nonfederal systems and organizations.

Theprimary goal of CMMC assessment proceduresis to determine whether anOrganization Seeking Certification (OSC)complies with the cybersecurity controls required for its certification level. Themost common purpose of assessment procedures is to obtain evidencethat verifies an organization has properly implemented security practices.

Why "A. Obtain Evidence" is Correct?

CMMC Assessments Require Evidence Collection

TheCMMC Assessment Process (CAP) Guideoutlines that assessors must use three methods to verify compliance:

Examine– Reviewing documentation, policies, and system configurations.

Interview– Speaking with personnel to confirm understanding and execution.

Test– Validating controls through operational or technical tests.

All these methods involve obtaining evidenceto support whether a security requirement has been met.

Alignment with NIST SP 800-171A

CMMC Level 2 assessments follow NIST SP 800-171A, which is designed for evidence-based verification.

Assessors rely on documented artifacts, system logs, configurations, and personnel testimony as evidence of compliance.

Why Other Answers Are Incorrect?

B. Define level of effort (Incorrect)

Thelevel of effortrefers to the time and resources needed for an assessment, but this is aplanningactivity, not the primary goal of an assessment.

C. Determine information flow (Incorrect)

While understandinginformation flowis important for security controls likedata protection and access control, themain purpose of an assessment is to gather evidence—not to determine information flow itself.

D. Determine value of hardware and software (Incorrect)

Asset valuation may be part of an organization’s risk management process, but CMMC assessmentsdo not focus on determining hardware or software value.

Conclusion

The correct answer isA. Obtain evidence, as theCMMC assessment process is evidence-drivento verify compliance with security controls.

The CMMC Assessment Process (CAP) requires that sufficient evidence must:

Cover the sampled organization,

Cover the defined model scope of the assessment (Target CMMC Level), and

Correspond to the evidence collection approach.

Evidence is always required, even if the organization holds other certifications such as ISO. External certifications cannot replace CMMC evidence requirements. Thus, the statement that “Evidence is not required if the practice is ISO certified” is not valid.

Reference Documents:

CMMC Assessment Process (CAP), v1.0

Who Determines the Assessment Method for Each Practice?

In aCMMC Level 2 Assessment, theLead Assessorhas thefinal authorityin determining theassessment methodused to evaluate each practice.

Key Responsibilities of the Lead Assessor

✅Ensures theCMMC Assessment Process (CAP) Guideis followed.

✅Determines whether a practice is evaluated usinginterviews, demonstrations, or document reviews.

✅Directs theCertified CMMC Professionals (CCPs)and other assessors on themethodologyfor gathering evidence.

✅Works under aCertified Third-Party Assessment Organization (C3PAO)to ensure proper assessment execution.

Why "Lead Assessor" is Correct?

CCP (Option A) assists in the assessment but does not make final decisionson methods.

OSC (Option B) is the Organization Seeking Certification, and they do not control assessment methodology.

Site Manager (Option C) may coordinate logistics but has no authority over assessment decisions.

Breakdown of Answer Choices

Option

Description

Correct?

A. CCP

❌Incorrect–A CCPassistsbut doesnot determine assessment methods.

B. OSC

❌Incorrect–The OSC is beingassessedand does not decide assessment methods.

C. Site Manager

❌Incorrect–The Site Manager handles logistics butdoes not control assessment methods.

D. Lead Assessor

✅Correct – The Lead Assessor has the final say on the assessment method used.

Official References from CMMC 2.0 Documentation

CMMC Assessment Process Guide (CAP)– Defines theLead Assessor’s rolein determining assessment methods.

Final Verification and Conclusion

The correct answer isD. Lead Assessor, as they havefinal decision-making authority over the assessment methodology.

In the context of a Cybersecurity Maturity Model Certification (CMMC) assessment, the roles and responsibilities of individuals involved are clearly delineated to ensure a structured and effective evaluation process. The term "applicable staff" refers to personnel within the Organization Seeking Certification (OSC) who possess specific knowledge or expertise pertinent to the assessment. These individuals are integral to the assessment process as they provide essential information, demonstrate the implementation of security practices, and facilitate the assessment team's understanding of the organization's cybersecurity posture.

In this scenario, the employee serving as the primary system administrator is responsible for managing and maintaining the organization's systems. Given their comprehensive understanding of the system configurations, security controls, and operational procedures, this individual is best categorized as "applicable staff." Their involvement is crucial during the assessment, as they can provide detailed insights, demonstrate compliance measures, and address technical inquiries from the assessment team.

The other options can be delineated as follows:

Analyzer:Typically refers to individuals who analyze data or security incidents, often as part of a security operations center. This role is not specifically defined within the CMMC assessment context.

Inspector:Generally denotes a person who examines or inspects systems and processes, possibly as part of an internal audit or compliance check. This term is not a standard designation within the CMMC assessment framework.

Demonstration staff:While this could imply personnel responsible for demonstrating systems or processes, it is not a recognized role within the CMMC assessment process.

Therefore, the primary system administrator, by virtue of their role and responsibilities, aligns with the "applicable staff" category, playing a pivotal role in facilitating a successful CMMC assessment.

Understanding Federal Contract Information (FCI) and Publicly Accessible Information

Federal Contract Information (FCI)isnon-public informationprovided by or generated for the U.S. governmentunder a contractthat isnot intended for public release.

Key Characteristics of FCI:

✔FCI includesdetails related togovernment contracts, project specifics, and performance data.

✔It must be protected under FAR 52.204-21, which requiresbasic safeguarding measuresto prevent unauthorized access.

✔Posting FCI on a public site is a security violationsince it ismeant to be restrictedfrom public disclosure.

Why is the Correct Answer "A. FCI (Federal Contract Information)"?

A. FCI → Correct

FCI must be protected from unauthorized access, and if it wasincorrectly published online, it should have been restricted.

B. Change of leadership in the organization → Incorrect

Leadership changes are typically public informationand do not require restriction unless they involve sensitive government-related security clearances.

C. Launching of their new business service line → Incorrect

Marketing and business announcementsare generallypublicly availableandnot restricted information.

D. Public releases identifying major deals signed with commercial entities → Incorrect

Commercial contracts and business deals are not considered FCIunless they involvegovernment contracts.

CMMC 2.0 References Supporting This Answer:

FAR 52.204-21 (Basic Safeguarding of Covered Contractor Information Systems)

DefinesFCI as sensitive but unclassified informationthat must beprotected from public disclosure.

CMMC 2.0 Level 1 Requirements

Requires contractors toprotect FCI under basic cybersecurity standardsto prevent unauthorized exposure.

DoD Guidance on FCI Protection

States thatpublishing FCI on public websites violates federal cybersecurity requirements.

TheCMMC Assessment Guideis the best source for determining the sources of evidence for a given practice because it provides specific guidance on how organizations should implement and demonstrate compliance with CMMC practices. Each CMMC level has its own assessment guide (e.g.,CMMC Assessment Guide – Level 1, Level 2), detailing expected evidence and assessment procedures.

Detailed Justification:

CMMC Assessment Guide (Primary Source for Evidence)

TheCMMC Assessment Guideexplicitly outlines the evidence required to verify compliance with each practice.

It provides detailed instructions on assessment objectives, clarifying what assessors should look for when determining compliance.

The guide breaks down each practice intoassessment objectives, helping organizations prepare appropriate documentation and artifacts.

Other Documents and Why They Are Not the Best Choice:

NIST SP 800-53 (Option A)

WhileNIST SP 800-53provides a comprehensive catalog of security and privacy controls, it does not focus on CMMC-specific evidence requirements.

It serves as a foundational cybersecurity framework but does not define the specific artifacts required for CMMC assessment.

NIST SP 800-53A (Option B)

NIST SP 800-53Aprovides guidance on assessing security controls but is not tailored to the CMMC framework.

It includes general control assessment procedures, but theCMMC Assessment Guideis more precise in defining the evidence needed for CMMC compliance.

CMMC Assessment Scope (Option C)

TheCMMC Assessment Scopedocument outlines which systems, assets, and processes are subject to assessment.

While important for defining boundaries, it does not provide details on specific evidence requirements for each practice.

References from Official CMMC Documents:

CMMC Assessment Guide (Level 2) – Section on "Assessment Objectives"

This document details how evidence is collected and evaluated for each CMMC practice.

Example: ForAC.L2-3.1.1 (Access Control – Limit System Access), the guide specifies that assessors should verify documented policies, system configurations, and audit logs.

CMMC Model Overview (Official DoD Documents)

Emphasizes thatCMMC Assessment Guidesare the official reference for determining sources of evidence.

Conclusion:

TheCMMC Assessment Guideis the most authoritative source for determining the required evidence for a given practice in CMMC assessments. It provides detailed breakdowns of assessment objectives, required artifacts, and verification steps necessary for compliance.

Understanding the Reporting Process in a CMMC 2.0 Level 2 Assessment

ACMMC Level 2 Assessmentconducted by aCertified Third-Party Assessor Organization (C3PAO)follows a structured approach to gathering evidence, evaluating compliance, and reporting findings to theOrganization Seeking Certification (OSC). The reporting process is outlined in theCMMC Assessment Process (CAP) Guide, which specifies how findings should be communicated.

Assessment Communication Structure

Daily Checkpoints:

Throughout the assessment, the assessor team holdsdaily checkpoint meetingswith the OSC to provide updates on progress, observations, and preliminary findings.

These checkpoints help ensure transparency and allow the OSC to address minor issues as they arise.

Final Results Delivery:

Thefinal assessment resultsare typically shared during thefinal daily checkpointOR in aseparately scheduled findings and recommendations reviewmeeting.

This ensures that the OSC receives a structured and complete summary of the assessment findings before the official report is submitted.

Why Option C is Correct

TheCMMC Assessment Process (CAP) Guide, Section 4.5clearly states that assessment findings should be presentedeither at the last daily checkpoint or during a separately scheduled final review.

This aligns with best practices formaintaining transparency and ensuring the OSC has clarity on their assessment resultsbefore the final report submission.

Option A (End of every day)is incorrect because while assessors do provide updates, they do not deliver the "final results" daily.

Option B (Daily and a separate final review)is misleading, as the CAP Guide allows assessors tochoosebetween the final daily checkpoint OR a separate findings review—not both.

Option D (After C3PAO approval)is incorrect because theC3PAO does not approve findings before they are communicated to the OSC. The assessment team directly presents the results first.

Official CMMC Documentation References

CMMC Assessment Process (CAP) Guide, Section 4.5: Reporting and Findings Communication

CMMC 2.0 Level 2 Assessment Process Overview

CMMC Assessment Final Report Guidelines

Final Verification

Based on officialCMMC 2.0 documentation, thefinal assessment results should be presented to the OSC either at the last daily checkpoint or in a separately scheduled review session, making Option C the correct answer.

The correct answer isA. CMMC Assessment Reporting Requirementsbecause this document specifically outlines thestructured processthat Certified Third-Party Assessment Organizations (C3PAOs) must follow when conducting and reporting CMMC assessments.

Step-by-Step Breakdown:

Understanding the CMMC Assessment Process

TheLead Assessorbriefs the team on theassessment requirementsand theevaluation criteriabefore the assessment begins.

Throughout the assessment,findings summaries, practice ratings, and level recommendationsare documented and reported.

These findings are internally reviewed by theC3PAObefore they are formally submitted forquality review and final rating approval.

Key Document Stipulating Reporting Requirements: CMMC Assessment Reporting Requirements

This documentspecifically details how assessments must be reportedwithin theCMMC ecosystem.

It describes the structured process for assessment submission, internalC3PAO reviews, andquality checks by the CMMC-ABbefore an organization can receive a final certification decision.

It ensures thatresults are consistent, transparent, and aligned with DoD cybersecurity compliance expectations.

Why Other Options Are Incorrect:

B. DFARS 52.204-21 Assessment Reporting Requirements

This clause only specifiesbasic safeguardingof Federal Contract Information (FCI) but doesnotdictate the reporting process for CMMC assessments.

C. NIST SP 800-171 Revision 2 Assessment Reporting Requirements

WhileNIST SP 800-171 Rev. 2outlines security controls, it doesnotdefine how CMMC assessments must be conducted and reported.

D. DFARS Clause 252.204-7012 Assessment Reporting Requirements

This DFARS clause focuses onincident reportingandcyber incident response requirementsbut does not detail theCMMC assessment reporting process.

Official Reference:

CMMC Assessment Reporting Requirements, issued byThe Cyber ABandDoD, governs how C3PAOs must report assessment results.

CMMC Assessment Process (CAP)also outlines reporting workflows for certification.

Thus, theCMMC Assessment Reporting Requirementsdocument is the authoritative source that dictates the reporting procedures for CMMC assessments.

CMMC Level 2 requires full implementation of the 110 security requirements specified in NIST SP 800-171 Rev. 2, Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations. These practices form the foundation for safeguarding CUI across defense contractor systems.

NIST SP 800-53 is a broader catalog of security controls for federal systems, not specific to CUI in the defense contractor environment.

48 CFR 52.204-21 establishes basic safeguarding requirements for Federal Contract Information (FCI) and corresponds to CMMC Level 1.

DFARS 252.204-7012 defines safeguarding and incident reporting obligations but does not enumerate the specific security practices required.

Thus, Level 2 practices are aligned to NIST SP 800-171.

Reference Documents:

CMMC Model v2.0 Overview, December 2021

NIST SP 800-171 Rev. 2

Understanding Access Control in CMMC

Access control refers to the process ofgranting or denyingspecific requests to:

Obtain and use information

Access information processing services

Enter specific physical locations

TheAccess Control (AC) domain in CMMCis based onNIST SP 800-171 (3.1 Access Control family)and includes requirements to:

✅Implement policies for granting and revoking access.

✅Restrict access to authorized personnel only.

✅Protect physical and digital assets from unauthorized access.

Since the questionbroadly asks about the process of granting or denying access to information, services, and physical locations, the correct answer isA. Access Control.

Why the Other Answers Are Incorrect

B. Physical access control

❌Incorrect.Physical access controlis asubsetof access control that only applies tophysical locations(e.g., keycards, security guards, biometrics). The question includesinformation and services, makinggeneral access controlthe correct choice.

C. Mandatory access control (MAC)

❌Incorrect.MAC is a specific type of access controlwhere access is strictly enforced based onsecurity classifications(e.g., Top Secret, Secret, Confidential). The questiondoes not specify MAC, so this is incorrect.

D. Discretionary access control (DAC)

❌Incorrect.DAC is another specific type of access control, whereownersof data decide who can access it. The question asksgenerallyabout granting/denying access, makingaccess control (A)the best answer.

CMMC Official References

CMMC 2.0 Model - AC.L2-3.1.1 to AC.L2-3.1.22– Covers access control requirements, includingcontrolling access to information, services, and physical spaces.

NIST SP 800-171 (3.1 - Access Control Family)– Defines the general principles of access control.

Thus,option A (Access Control) is the correct answer, as it best aligns withCMMC access control requirements.

Understanding the Final Review Process in a CMMC Assessment

During aCMMC Level 2 Assessment, theAssessment Teamand theOrganization Seeking Certification (OSC)holddaily checkpoint meetingsto discuss progress, review evidence, and ensure transparency.

At theend of the assessment, afinal review meetingis conducted, during which theLead Assessor presents the results. Therecorded Daily Checkpoint logserves as theofficial document summarizing:

Theattendee list

Time, date, and locationof the final review

Final MET or NOT MET ratingsfor all practices

Discussion points, resulting actions, and due datesfor both the OSC and Assessment Team

Why "D. Final and recorded Daily Checkpoint log" is Correct?

TheCMMC Assessment Process (CAP) Guidespecifies that all assessment findings and discussions must bedocumented throughout the assessment in daily checkpoint logs.

TheFinal and Recorded Daily Checkpoint Logincludes all necessary details, such as attendee lists, discussion topics, and action items.

This document isused to ensure all discussed topics and agreed-upon actions are properly tracked and recordedbefore submission.

Why Other Answers Are Incorrect?

A. Final log report (Incorrect)

There isno specific "Final Log Report"required in CMMC assessments.

B. Final CMMC report (Incorrect)

TheFinal CMMC Reportdocuments the overall assessment results butdoes not serve as the official meeting logfor the final review discussion.

C. Final and recorded OSC CMMC report (Incorrect)

This documentdoes not include detailed discussion points from the daily checkpoint meetings.

Conclusion

The correct answer isD. Final and recorded Daily Checkpoint log, as this is the official document that captures thefinal meeting details, discussions, and action items.

Understanding CMMC 2.0 Levels and Their Descriptions

TheCybersecurity Maturity Model Certification (CMMC) 2.0consists ofthree levels, each representing increasing cybersecurity maturity:

Level 1 – Foundational

Focuses onbasic cyber hygiene

Implements17 practicesaligned withFAR 52.204-21

Primarily protectsFederal Contract Information (FCI)

Level 2 – Advanced(Correct Answer)

Focuses onprotecting Controlled Unclassified Information (CUI)

Implements110 practicesaligned withNIST SP 800-171

Requirestriennial third-party assessments for critical programs

Level 3 – Expert

Focuses onadvanced cybersecurityagainstAPT (Advanced Persistent Threats)

ImplementsNIST SP 800-171 and additional NIST SP 800-172 controls

Requirestriennial government-led assessments

Why "B. Advanced" is Correct?

TheCMMC 2.0 framework explicitly describes Level 2 as "Advanced."

Italigns with NIST SP 800-171to ensure robustCUI protection.

Why Other Answers Are Incorrect?

A. Expert (Incorrect)– This describesLevel 3, not Level 2.

C. Optimizing (Incorrect)– Not a defined CMMC level description.

D. Continuously Improved (Incorrect)– CMMC does not use this terminology.

Conclusion

The correct answer isB. Advanced, which accurately describesCMMC Level 2.

Understanding IA.L1-3.5.1 (Identification and Authentication Requirements)

TheCMMC 2.0 Level 1practiceIA.L1-3.5.1aligns withNIST SP 800-171, Requirement 3.5.1, which mandates that organizationsidentify system users, processes acting on behalf of users, and devicesto ensure proper access control.

To comply with this requirement, anOrganization Seeking Certification (OSC)must maintain documentation that demonstrates:

A unique identifier (username) for each system user

Mapping of system accounts to specific individuals

Identification of devices and automated processes that access systems

Why "C. User names associated with system accounts assigned to those individuals" is Correct?

This documentation directly satisfies IA.L1-3.5.1because it showshow system users are uniquely identified and linked to specific accountswithin the environment.

Alist of users and their assigned accountsconfirms that the organization has a structured method oftracking access and authentication.

It allows auditors to verify thateach user has a distinct identityand that access control mechanisms are properly applied.

Why Other Answers Are Incorrect?

A. Procedures for implementing access control lists (Incorrect)

While access control lists (ACLs) are relevant for authorization, they do notidentify users or devicesspecifically, making them insufficient as primary evidence for IA.L1-3.5.1.

B. List of unauthorized users that identifies their identities and roles (Incorrect)

Identifying unauthorized users does not fulfill the requirement of trackingauthorizedusers, devices, and processes.

D. Physical access policy stating "All non-employees must wear a special visitor pass or be escorted" (Incorrect)

This pertains tophysical security, not system-baseduser identification and authentication.

Conclusion

The correct answer isC. User names associated with system accounts assigned to those individuals, as thisdirectly satisfies the identification requirement of IA.L1-3.5.1.

Understanding Evidence Sufficiency in CMMC Level 2 Assessments

During aCMMC Level 2 Assessment, theLead Assessormust determine whether the evidence collected for each practice issufficientto support an assessment finding. This aligns with theCMMC Assessment Process (CAP) Guide, which requires assessors to evaluate:

Examinations– Reviewing documents, configurations, and system records.

Interviews– Speaking with personnel to confirm implementation and understanding.

Testing– Observing security controls in action to validate effectiveness.

To determine whether evidence issufficient, the assessor ensures that it:

Directly supports the assessment objective.

Demonstrates that the practice is consistently implemented.

Can be independently verified.

Why Option B (Sufficiency) is Correct

Sufficiencyrefers to whetherenoughevidence has been collected to make an accurate determination about compliance.

Option A (Adequacy)is incorrect because adequacy relates tothe qualityof evidence, while sufficiency focuses on whetherenoughevidence exists.

Option C (Process Mapping)is incorrect because process mapping is used for understanding workflows but is not an assessment verification method.

Option D (Assessment Scope)is incorrect because defining the scope happensbeforeevidence collection, during the planning phase.

Official CMMC Documentation References

CMMC Assessment Process (CAP) Guide – Section 3.6 (Determining Sufficiency of Evidence)

CMMC Level 2 Assessment Guide – Evidence Collection and Evaluation

Final Verification

Since theLead Assessor is ensuring enough evidence is available to verify compliance, the correct answer isOption B: Sufficiency.

DFARS clause 252.204-7012 establishes the safeguarding of Covered Defense Information (CDI), which aligns with CUI categories. The clause specifies that the DoD is responsible for determining whether information is Controlled Unclassified Information (CUI) and marking it accordingly before sharing it with contractors. Contractors do not make determinations about what constitutes CUI; they are responsible for safeguarding information once it is received and marked as CUI.

Reference Documents:

DFARS 252.204-7012,Safeguarding Covered Defense Information and Cyber Incident Reporting

CMMC Model v2.0 Overview, December 2021

In the Cybersecurity Maturity Model Certification (CMMC) assessment process, the presentation of the Final Recommended Assessment Findings is a critical step. According to the CMMC Assessment Process guidelines, the Lead Assessor is responsible for compiling and presenting these findings. The prescribed method for this presentation is the utilization of the standardized CMMC Findings Brief template.

Step-by-Step Explanation:

Responsibility of the Lead Assessor:

The Lead Assessor oversees the assessment process and is tasked with compiling the Final Recommended Assessment Findings.

Utilization of the CMMC Findings Brief Template:

To ensure consistency and adherence to CMMC standards, the Lead Assessor must use the official CMMC Findings Brief template when presenting the assessment findings.

Presentation of Findings:

The findings, documented in the CMMC Findings Brief template, are then presented to the Organization Seeking Certification (OSC). This presentation ensures that the OSC receives a clear and standardized report of the assessment outcomes.