FC0-U71 Sample Questions Answers

An embedded operating system is used in dedicated devices such as smart appliances, printers, or industrial machines. It performs specific functions and interacts with other systems, like sending alerts.

“Embedded operating systems are designed to run on specialized hardware with a fixed function, such as in appliances or vehicles.” — CompTIA ITF+ Official Guide

Correct answer: B

Tablets typically connect to wireless networks using Wi-Fi, which adheres to the IEEE 802.11 standard (often seen as 802.11a/b/g/n/ac/ax). The correct protocol family for this type of connection is 802.11X (referring to Wi-Fi technologies broadly).

“Wireless devices such as tablets use the 802.11 standards to connect to Wi-Fi access points for network connectivity.” — CompTIA ITF+

Other options:

B. Thunderbolt and D. USB-C – Wired connection standards

C. Bluetooth – Short-range peripheral communication, not Wi-Fi

Correct answer: A

The correct answer is A. OEM. A vendor/manufacturer website is an original equipment manufacturer source when it is owned by the company that made or provides the software or driver. The question says the driver is found on the vendor’s website, not an app store, third-party site, or SaaS platform. SaaS means Software as a Service and refers to cloud-hosted applications, not a printer driver download source.

Exact Extract/Reference: The Tech+ Study Guide states that “An original equipment manufacturer (OEM) website is one owned by the developer of the software,” and that software from an OEM website is legitimate and trusted. It also gives a printer driver example where the HP support site is identified as an OEM website.

The correct answer is A. Flowchart. A flowchart is used before coding to visually plan how a program flows from one step to the next. A linear sequence is a set of ordered logical steps, and a flowchart is designed to show that order clearly. Object-oriented programming is a programming model based on objects and classes, not a planning tool for a sequence. Branching is logic that chooses between paths, and Boolean is a true/false data type or result.

Exact Extract/Reference: The Tech+ Study Guide states that “A flowchart is a visual representation of a program that uses boxes to represent the logic” and that flowcharts help developers “visualize the flow of the program.” It also states that flowcharts show the “order of operations within a program.” The review answer confirms that “A flowchart is designed to depict visually the sequence of events and logic within a program.”

Installing software typically requires elevated permissions that standard user accounts do not have. The CompTIA ITF+ FC0-U71 Official Study Guide explains:

“An administrator account provides full system access, including installing or removing software, changing system settings, and managing user accounts.”

The user account does not have these privileges by default.

Least privilege refers to granting only the minimum permissions necessary (which would not typically include software installation for regular users).

Single factor refers to authentication methods, not access levels.

Since the employee is denied installation due to insufficient privileges, administrator access is needed to complete the installation.

The correct answer is B. Document the findings. In the troubleshooting methodology, after the issue has been resolved and functionality has been verified, the final step is to document the findings, lessons learned, actions, and outcomes. Testing the theory, creating an action plan, and implementing the action plan all happen before the problem is resolved.

Exact Extract/Reference: The CompTIA Tech+ Study Guide lists the troubleshooting steps in order: identify the problem, establish a theory, test the theory, establish a plan and implement the solution, verify full system functionality, and finally “Document findings/lessons learned, actions, and outcomes.”

A query is a request for information from a database. Structured Query Language (SQL) is commonly used to retrieve specific records or information from a data set.

“A query is used to extract and retrieve specific data from a database based on defined criteria.” — CompTIA ITF+ Data Concepts

Correct answer: D

Cloud storage enables multiple users to access and modify data in real-time from different locations. It also ensures high availability by offering redundancy and online access.

“Cloud storage provides high availability, accessibility, and collaboration capabilities, making it ideal for group projects and remote access.” — CompTIA ITF+ Cloud Technologies

Correct answer: A

Browsers store previously loaded pages in their cache to improve performance. If outdated content is cached, clearing the cache forces the browser to load the latest version from the server.

“Clearing the browser cache removes stored versions of web pages and resolves display issues caused by outdated content.” — CompTIA ITF+

Correct answer: C

NVMe (Non-Volatile Memory Express) drives are high-speed storage devices that commonly use the M.2 form factor. M.2 allows for compact design and direct connection to the motherboard.

“M.2 is a compact form factor used for high-speed NVMe and SATA SSDs, enabling faster storage access in modern systems.” — CompTIA ITF+ Hardware Overview

Correct answer: A

Input devices allow users to interact with the computer by sending data to it. The most common input devices for a desktop PC setup are:

Mouse – allows the user to point, click, and interact with the GUI.

Keyboard – used to enter text and commands.

“Input devices such as the keyboard and mouse are essential for entering data into a computer.” — CompTIA ITF+ Study Guide

Other options explained:

A. Printer – Output device

D. CPU – Core processing unit, not an input device

E. Speaker – Output device

F. SSD – Storage device

Correct answers: B and C

Pseudocode represents logic written in plain, human-readable language that resembles programming structure but isn’t actual code:

“Pseudocode allows programmers to design algorithms using readable statements before translating them into actual code.”

Branch and sequence refer to control flow structures, and object-oriented refers to a programming paradigm.

USB-C supports bidirectional communication, which means it can both send and receive data, including video, audio, power, and data signals over the same cable. This is unlike traditional video cables such as VGA, DVI, or even DisplayPort, which primarily transmit data in one direction.

“USB-C is a reversible connector capable of transmitting power, data, video, and audio signals. It is also bidirectional, allowing two-way communication between devices.” — CompTIA ITF+ Study Guide

VGA, DVI, and even DisplayPort are primarily unidirectional video outputs.

Only USB-C fully supports modern bidirectional multimedia communication.

Correct answer: D

According to the CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025), the SFP (Small Form-Factor Pluggable) connector is directly associated with fiber-optic networking. The guide lists:

“SFP (small form-factor pluggable) connectors are commonly used in fiber-optic connections to allow hot-swappable transceivers for different types of fiber cables.”

Additionally, the same guide’s chapter on Networking Concepts and Technologies explains:

“Fiber-optic around 2 Gbps – Incredibly fast and more expensive than DSL or cable.”

Therefore, fiber Internet is the only service type that uses SFP connectors for data transmission over optical cables.

Verified Reference:

Chapter 8: Networking Concepts and Technologies — “External network connections” and “Common Internet connection types and speeds” (pp. 429–435).

Chapter 2: Peripherals and Connectors — “SFP (small form-factor pluggable) connectors” (pp. 97–98).

The CompTIA Tech+ Study Guide explains:

“Firewalls filter network traffic. Firewalls filter inbound and outbound network traffic based on rules defined by the administrator. That list of rules is called an access control list (ACL). By default, most firewalls are configured as default deny, which means that all traffic is blocked unless specifically authorized by the administrator.”

Therefore, a firewall is the network security device that primarily permits and restricts traffic based on predefined rules.

Verified Reference:

Chapter 5: Software Applications — “Software Firewalls” (pp. 316–317).

Chapter 8: Networking Concepts and Technologies — “Firewalls” (pp. 447–448).

Data at rest refers to information stored on a device or disk, such as a hard drive. The encryption that protects it is typically file-level encryption (or full-disk encryption).

“File-level encryption applies encryption to individual files or directories on storage media and is used to protect data at rest.” — CompTIA ITF+ Study Guide

VPN and HTTPS protect data in transit.

Plaintext means data is unencrypted, and therefore is not protective.

Therefore, A is the correct answer.

Although the values look numeric, the sequence “1, 10, 2...” suggests they are being treated as strings (text values), especially if they are not sorted numerically. In programming, strings are sequences of characters—even if those characters are digits.

“String data type is used to store alphanumeric characters, including numeric characters represented as text rather than numbers.” — CompTIA ITF+ Data Concepts

Correct answer: D

A byte consists of exactly 8 bits. Bits (binary digits) are the smallest unit of data, and eight of them grouped together form one byte, which is used to represent characters and numbers in digital systems.

“A byte is made up of 8 bits and is the standard unit of data used to represent information such as characters in computing.” — CompTIA ITF+ Fundamentals

Correct answer: C

The most important consideration when opening a file on an Operating System Graphical User Interface (OS GUI) is the file extension. A file extension identifies the type of file and determines which software application can open it. In the official CompTIA ITF+ Student Guide, it is stated that:

“The last part of the file name represents an extension, which describes what type of file it is and is used by Windows to associate the file with an application.”

“Files are usually opened by double-clicking them. You may want to open a file in a software product other than the default, however. When you right-click a file, the shortcut menu displays a list of suitable choices, or you can choose Open With and browse for a different application. You can also use the Default Programs applet to configure file associations.”

“Do not change a file ' s extension if it is shown. If you delete or change the extension, the file will not be associated with the correct program for opening it.”

This means the OS uses the file extension to decide which application to use to open a file. Changing or deleting the extension can result in the file not opening properly because it no longer matches the program expected to open it.

As per the CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025):

“Some companies’ IT policies require that you change or reset your password at regular intervals, such as every 90 days. The rationale for having a password expiration policy is that the longer you keep a password, the more likely it is that someone has seen it or written it down.”

The guide further notes:

“Many companies have password policies in place that enforce strict requirements… The policy can also make users reset their password every so often, such as 90 days.”

This describes password expiration, which ensures that passwords are periodically updated to reduce security risks.

Verified Reference:

Chapter 11: Security Best Practices — “Password Changes” (pp. 596–598).

The correct answer is D. Variable. In the pseudocode, Q receives input from the user and then prints that input. Since the value of Q can change each time the program loops back to line 10, Q is a variable. It is not a constant because constants do not change. It is not a function because it is not a reusable block of code. It is not an array because it does not represent a list of values.

Exact Extract/Reference: The CompTIA Tech+ Study Guide explains that a “constant” is a predefined number that does not change, while “a variable” means the value can change. It also states that variables can change throughout a program based on input.

Fiber optic internet provides the fastest residential internet speeds due to its use of light for data transmission. The CompTIA ITF+ FC0-U71 Official Study Guide explains:

" Fiber-optic cabling provides very high-speed data transfer using light signals, with much greater bandwidth and lower latency compared to DSL, cable, or satellite. "

" DSL and cable are slower and often shared among users, while satellite suffers from high latency. "

A primary key is a unique identifier for each record in a database table. It must be unique and not null across all rows. In this table, the field ID is the only column that uniquely identifies each row and does not repeat.

“A primary key is a field (or a set of fields) that uniquely identifies a record in a table. It ensures that each record can be uniquely retrieved.” — CompTIA ITF+ Official Study Guide

Analysis of other options:

Month, Day, Year, and Name can have duplicate values across multiple records and therefore do not serve as unique identifiers.

Correct answer: A

The ID field contains unique values for each record and is typically used as a primary key in a database. A primary key uniquely identifies each row in a table.

Month, Day, Year, and Name may have duplicates and do not guarantee uniqueness.

Accounting refers to the logging and monitoring of user actions. In this case, tracking login events through log files is an example of accounting in the AAA (Authentication, Authorization, Accounting) model.

“Accounting provides auditing and logging of user actions, such as login times and resource access.” — CompTIA ITF+ Security Essentials

Correct answer: A

Output devices display or present data to users:

“A Smart TV displays visual and audio output, qualifying it as an output device.”

Web cameras, keyboards, and microphones are input devices that capture data rather than display or present it.

The CompTIA troubleshooting methodology is clearly outlined:

" Once a theory of probable cause has been established, the next step is to test that theory. "

Testing confirms whether the identified potential cause is correct before proceeding with action planning, repairs, or documentation.

RAM (Random Access Memory) in smartphones and computers is most commonly measured in gigabytes (GB) today. Typical smartphone RAM ranges from 2GB to 16GB depending on performance and price.

“Memory capacity in modern devices like smartphones is measured in gigabytes (GB), reflecting their need to support multitasking and app usage.” — CompTIA ITF+ Official Resources

Other options:

KB and MB were used in earlier computing generations.

TB is used for storage, not RAM.

Correct answer: A

The CompTIA Tech+ Study Guide highlights that:

“If no sound is coming from your speakers, even after confirming they’re powered and connected, check your sound settings. The wrong output device may be selected—especially when multiple audio devices are present.”

This describes a misconfigured output—where the OS is sending audio to the wrong device (e.g., Bluetooth or HDMI).

Verified Reference:

Chapter 4: Operating Systems — “Troubleshooting Sound Devices” (pp. 232–233).

According to the CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025):

“A crimper is used to attach modular connectors, such as RJ45 or RJ11, to network or phone cables. The crimper pushes the metal contacts into the wires, securing them in place.”

Punchdown tools, by contrast, are used for patch panels or keystone jacks, not RJ45 ends.

Verified Reference:

Chapter 2: Peripherals and Connectors — “Networking Tools: Crimpers, Punchdown Tools, Cable Testers” (pp. 106–108).

An access point is a networking hardware device that allows wireless devices to connect to a wired network using Wi-Fi or related standards. It helps extend the range of a wireless network by creating additional coverage areas. This is directly outlined in CompTIA ITF+ documentation:

“A wireless access point (AP) is a device that allows wireless clients to connect to a wired network. It serves to extend or broaden the wireless coverage.”

In contrast:

A modem connects to the internet via an ISP.

A server provides network services, not range.

A host firewall protects a single device or network; it does not expand connectivity.

Thus, the most appropriate answer is D.

Markup languages, such as HTML and XML, use tags (e.g., < p > , < title > , < body > ) to define the structure and presentation of data. They are not programming languages in the traditional sense, as they don ' t include logic or execution flow.

“Markup languages use tags to annotate and structure text. Common examples include HTML and XML.” — CompTIA ITF+ Software Concepts

Correct answer: A

The CompTIA Tech+ Study Guide discusses social engineering prevention:

“Social engineering relies on manipulating people rather than technology. The best protection against social engineering is user awareness and verifying identity before sharing information.”

Verifying a user’s identity via a phone call before taking any action (such as password reset or data access) is an essential safeguard against impersonation attempts.

Verified Reference:

Chapter 11: Security Best Practices — “Recognizing Social Engineering and Phishing Attacks” (pp. 586–588).

Data monetization refers to generating revenue from data assets, such as selling access or insights from collected user data to third parties.

“Data monetization involves using data to generate economic value — for example, selling user data to vendors or advertisers.” — CompTIA ITF+ Data Concepts

Correct answer: A

The CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025) clearly defines Platform as a Service (PaaS) as the most appropriate for developers seeking a managed coding environment:

“Platform as a Service (PaaS) adds a layer to IaaS that includes software development tools such as runtime environments. Because of this, it can be very helpful to software developers; the vendor manages the various hardware platforms. This frees up the software developer to focus on building their application and scaling it.”

It also provides examples:

“Examples of PaaS include Google App Engine, Microsoft Azure, Red Hat OpenShift, Amazon Web Services (AWS) Elastic Beanstalk, Engine Yard, and Heroku.”

This clearly shows that PaaS allows developers to focus on writing code without managing the underlying infrastructure—exactly what the question describes.

Verified Reference:

Chapter 9: Cloud Computing and Artificial Intelligence — Section “Cloud Services” and Table 9.1 (pp. 494–496).

Encryption protects files by converting them into unreadable formats unless the correct decryption key is provided. The CompTIA ITF+ FC0-U71 Official Study Guide explains:

" Encryption is the process of converting data into a secure format that cannot be read without a decryption key. Only users with the proper key can access the original data. "

File permissions control user access based on OS-level rules, but encryption specifically ensures that only those with the key can read the file even if they access the file storage.

Hidden folders merely conceal files but don’t protect content. Compression reduces file size but doesn’t protect access.

The correct answer is A. Unnecessary. The key phrase is “already handled natively by the OS.” Since the operating system already provides Wi-Fi settings management, the extra software is redundant and not required. It is not necessarily malicious, because the question does not say it is harmful. It is not best described as open-source, because licensing is unrelated to whether the software should be removed. “Unwanted” could describe software the user does not want, but “unnecessary” is more precise because the reason for removal is that the OS already performs the same function.

Exact Extract/Reference: The Tech+ Study Guide lists “Removal of software” and specifically includes “Unwanted,” “Unnecessary,” and “Malicious” software under software/security best practices. The guide also states that removing an application can free disk space and memory, and that Tech+ objective 6.2 expects knowledge of removing unwanted, unnecessary, and malicious software.

The CompTIA Tech+ Study Guide explains:

“Solid-state drives (SSDs) use flash memory, which is non-magnetic and non-volatile. They have no moving parts, unlike HDDs, which use magnetic platters.”

It further notes:

“Conventional hard drives have spinning platters and read/write heads, whereas SSDs use flash memory. SSDs are faster but generally more expensive than their HDD counterparts.”

Therefore, SSD (solid-state drive) meets all the listed requirements.

Verified Reference:

Chapter 1: Core Hardware Components — “Exploring Storage and Expansion Devices” (pp. 35–60).

A hypervisor is the software or hardware platform that enables virtualization. It allows multiple operating systems (guest OSes) to run on a single physical machine.

“A hypervisor manages virtual machines on a single physical system. It enables the creation and management of guest OS environments.” — CompTIA ITF+

Correct answer: D

An open-source license allows users to access, modify, and redistribute the software’s source code. It supports user customization and community contributions.

“Open-source software provides access to the source code, allowing users to inspect, modify, and enhance the software.” — CompTIA ITF+ Licensing and Software Concepts

Correct answer: C

To install and use a printer over a network, the printer must have an assigned IP address so that it can be located and communicated with by other devices on the same network.

“Network printers are assigned IP addresses so computers can locate and send print jobs to them over the network.” — CompTIA ITF+ Networking Guide

Correct answer: B

An e-reader is specifically designed for reading digital books using e-ink displays, which are easy on the eyes and readable in bright sunlight. They are lightweight, power-efficient, and ideal for book reading.

“E-readers use electronic ink displays for reading digital books, providing long battery life and excellent visibility in various lighting conditions.” — CompTIA ITF+

Correct answer: B

A console or command-line interface (CLI) allows users to input text-based commands that the computer can execute.

“The console (or command prompt or terminal) allows direct command input to control an operating system or application without using a graphical interface.” — CompTIA ITF+ Guide

Services are background processes.

Attributes define properties of objects or elements.

Processes are executing programs but are not used for inputting commands.

Correct answer: D

According to the CompTIA Tech+ Study Guide:

“Changing Default Usernames and Passwords — The first thing a potential hacker will try to use is the default username or password for a device. Always change them.”

It also emphasizes:

“Enabling passwords and changing default usernames and passwords are essential password management best practices.”

Therefore, the correct action after server setup is to change the default usernames and passwords to secure the system.

Verified Reference:

Chapter 11: Security Best Practices — “Managing Passwords” (pp. 594–595).

Application data refers to user-generated or application-specific files that are critical to retain. This includes saved work, preferences, and databases. These must be included in backups to ensure continuity and recovery.

“Application data and user-generated content should be prioritized in backups to ensure critical information is retained during restoration.” — CompTIA ITF+ Data Protection

Correct answer: B

Clicking the lock icon next to a website’s URL allows users to view the security certificate, verify its issuer, expiration date, and encryption level—validating that the site is using HTTPS and is trusted.

“Browsers display a lock symbol for secure (HTTPS) websites. Clicking it reveals the SSL/TLS certificate details to verify the site’s authenticity.” — CompTIA ITF+ Security Essentials

Correct answer: A

The correct answer is D. Integrity. The phrase “contents are unchanged” directly refers to whether data has remained accurate, consistent, and unaltered. In security, integrity is the principle that protects data from unauthorized or accidental modification. Confidentiality is about keeping private data from unauthorized viewing. Authentication verifies identity. Availability ensures systems or data can be accessed when needed. Only integrity matches checking that a downloaded file has not changed.

Exact Extract/Reference: The Tech+ Study Guide explains that integrity means “the data is accurate and consistent and from the indicated source,” and identifies data integrity concerns such as unauthorized information alteration. The guide’s summary also states that integrity is ensuring data is “true and correct.”

E-readers (especially those using e-ink displays) are specifically designed for reading in bright environments. E-ink mimics the appearance of ink on paper, offering excellent visibility in sunlight with minimal glare and very low power consumption.

“E-readers use e-ink technology which makes the screen easily readable in bright environments like sunlight. This makes them ideal for reading documentation outdoors.” — CompTIA ITF+ Guide

Laptops, tablets, and smartphones may suffer from glare or screen dimming in direct sunlight.

Correct answer: C

This scenario describes a policy where the system enforces password expiration, prompting users to update passwords after a defined period.

“Password expiration is a security policy that requires users to reset their passwords periodically—commonly 30, 60, or 90 days—to mitigate the risk of compromised credentials.” — CompTIA ITF+ Objectives

Password privacy refers to keeping the password confidential.

Password history restricts reuse of old passwords.

Password complexity enforces character rules (e.g., uppercase, numbers, symbols).

Correct answer: D