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ACP-Cloud1 Sample Questions Answers

Questions 4

The maximum number of connections for an RDS instance depends on ____________.

Options:

A.

Memory size

B.

CPU utilization rate

C.

Disk capacity

D.

Network traffic

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Questions 5

You have bought an ECS instance on Alibaba Cloud. After deploying a Python environment on it, which of the following is the easiest and quickest way to monitor whether the Python process is running normally and report an alert if the process is accidentally terminated?

Options:

A.

Write a script for monitoring by yourself.

B.

Use process monitoring of ECS instance monitoring.

C.

Use site monitoring.

D.

Log on to the ECS instance console.

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Questions 6

SQL injection is a common attack on the application layer. It builds special input as a parameter to pass into a web application to steal or destroy the application data. Which of the following is the target that SQL injection eventually destroys or steals from?

Options:

A.

Web applications

B.

Redis database

C.

Confidential files on the server

D.

Pictures on the server

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Questions 7

An enterprise built an isolated network environment by using Alibaba Cloud VPC and connected this VPC to a traditional data center via VPN. This allows the enterprise to seamlessly migrate data from its traditional data center to Alibaba Cloud.

Now they need to receive user requests from the Internet and assign these requests to multiple ECS instances inside the VPC by using SLB. Which of the following statements are correct? (Choose two.)

Options:

A.

They can create an SLB instance in the VPC, and mount ECS instances within the VPC to this SLB instance. Then, use a jump server to receive external requests and direct these requests to SLB to forward them to backend ECS instances.

B.

They can create an SLB instance with an Internet IP address, and mount ECS instances within the VPC to this SLB instance. The public SLB will be used to receive external requests. As a result, requests from the Internet will be transferred to backend ECS instances within the VPC.

C.

They can create an SLB instance in the VPC, and mount ECS instances within the VPC to this SLB instance. Then, bind an EIP to the SLB, so that this SLB instance can receive requests from the Internet and assign these requests to the backend ECS instances.

D.

They can create an SLB instance with an Internet IP address, and mount ECS instances within the VPC and servers of the traditional data center to this SLB instance. The public SLB will be used to receive external requests. As a result, requests from the Internet will be transferred to backend ECS instances within the VPC and servers of the traditional data center.

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Questions 8

A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group. They set the "Minimum number of instances" to 6 and the "Maximum number of instances" to 8. After correctly configuring scaling settings, the customer adds a scaling rule “Adjust to 10 ECS instances” and creates a scheduled task based on this rule. Then, the customer checks the scaling group and sees it already contains 6 valid ECS instances. They then enable this scaling group immediately. How many ECS instances will be in the scaling group when the scheduled task is activated once?

Options:

A.

5

B.

6

C.

8

D.

10

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Questions 9

Alibaba Cloud provides comprehensive security protection covering networks, hosts, applications, databases, and content for on-cloud clients. Users using Alibaba Cloud services only need to focus on their own services, without the need to pay any attention to security protection issues.

Options:

A.

True

B.

False

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Questions 10

An enterprise hosts their servers (include both Linux and Windows servers) in a traditional IDC Every night hackers with IP addresses from many countries try to crack the password of their servers, making the administrator terribly worried about this However because of work requirements the remote management port of these servers must be opened to public network.

The administrator heard that Alibaba Cloud has solutions that can help customers improve the security of their systems Therefore, he/she wants to migrate the system to Alibaba Cloud. Which of the following functions should the administrator activate in Alibaba Cloud to reduce the possibility of brute force password cracking?

Options:

A.

Cloud Firewall

B.

Anti-DDoS Origin Basic Edition

C.

CloudMonitor

D.

Security Center

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Questions 11

After activating an Alibaba Cloud Elastic Compute Service (ECS) instance, you want to monitor the status of the ECS instance via Alibaba Cloud console. Therefore: you must activate and purchase Alibaba Cloud CloudMonitor service to meet this demand.

Options:

A.

True

B.

False

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Questions 12

Alibaba Cloud Object Storage Service (OSS) provides massive, secure, relatively low-cost, and highly reliable cloud storage services. Users can upload and download files to/from OSS via the Web Console or API.

Options:

A.

True

B.

False

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Questions 13

RDS instances are automatically created in master-slave mode without extra charge or configuration.

Options:

A.

TRUE

B.

FALSE

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Questions 14

If you want to build a secure and isolated network environment on Alibaba Cloud; meanwhile, design your network topology and specify Intranet IP addresses or CIDR Blocks in this network environment as needed, you can choose

Options:

A.

Leased line

B.

Virtual Private Cloud (VPC)

C.

Auto Scaling

D.

Express Connect

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Questions 15

As a concept stem from cloud computing, cloud storage service provides on-demand storage and data services to users through a unified interface Which of the following characteristics about cloud storage are correct? (Number of correct answers: 4)

Options:

A.

Management and maintenance: To prevent emergent service termination, users need to know the underlying detail like how the data is archived in the resource pool.

B.

Service on demand Cloud storage has a huge resources pool, users can apply for and use the resources on demand.

C.

High reliability and availability: Provides very high reliability and availability through technologies like 3 redundant copies, automatic failure recovery, etc.

D.

Ultra-large scale: Data storage can reach TB or even PB level

E.

Transparent service: Provides the service through a single SDK

F.

High scalability Storage capacity can be dynamically scaled to meet the needs.

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Questions 16

Alibaba Cloud Content Delivery Network (CDN) performs content acceleration with the support of intelligent DNS resolution The following function_________is NOT included in intelligent DNS resolution.

Options:

A.

A user request is directed to the server nearest to the customer based on location information of the pre-configured IP section.

B.

The intelligent DNS resolution can parse the same domain name into different IP addresses based on the IP of different visitors.

C.

The intelligent DNS resolution supports web page content caching. A user will receive data from the origin site at first-time access, and then will be reading data from cache in subsequent requests

D.

If a user activates mirror sites in different IDCs, intelligent DNS resolution can achieve load balancing by guiding customers in different places to different mirror sites.

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Questions 17

A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group He/she sets the "Minimum number of instances" to 2 and "Maximum number of instances" to 7.

After correctly configuring scaling settings, the customer adds a scaling rule "Add 6 ECS instances", and creates a scheduled task based on this rule.

And then, the customer checks the scaling group and see it already contains 3 valid ECS instances, he/she then enables this scaling group immediately.

How many ECS instance will be added in the scaling group when the scheduled task is activated once'?

Options:

A.

0

B.

2

C.

4

D.

6

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Questions 18

Alibaba Cloud Object Storage Service (OSS) is a massive, highly available, secured, and cost-effective storage service. One of the special characteristics of OSS is its superior data reliability due to its underlying backup technology and policies. Which of the following statements about OSS backup is correct?

Options:

A.

OSS supports 3 internal data copies, so the data can be manually recovered should there be any problem.

B.

Customers have to safeguard their own data. OSS provides various backup interfaces to facilitate off-site backups.

C.

OSS leverages RAID0+1 configuration of its underlying physical hard disks. There is no impact even if 2 hard disks were to fail simultaneously.

D.

OSS supports 3 internal data copies; no human intervention is required to recover the data when anything goes wrong.

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Questions 19

There are scheduled tasks and event-triggered tasks in Auto Scaling. Regarding event-triggered tasks, which of the following metrics are supported for this type of task? (Choose four.)

Options:

A.

CPU workload

B.

Memory utilization rate

C.

Average system workload

D.

Inbound and outbound traffic

E.

Disk IOPS

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Questions 20

After stopping an Alibaba Cloud Elastic Compute Service (ECS) instance, since the ECS instance is stopped, you will not be charged for anything related to that ECS instance until you start the instance again regardless of which region the instance is located in.

Options:

A.

True

B.

False

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Questions 21

Alibaba Cloud Content Delivery Network (CDN) is a distributed network that is built and overlaid on the bearer network Moreover it is composed of edge node server clusters distributed across different regions. It replaces the traditional data transmission mode, which is centered on Web servers. When using Alibaba Cloud CDN, a user's request wilt first reach the edge node, and then receive data from the origin site by means of back-to-source Moreover, the admin can obtain visitor's real IP on the origin site. Which of the following descriptions relate to "obtaining visitors real IP" are correct? (Number of correct answers: 2)

Options:

A.

"Visitor's real IP" is saved in "X-Forwarded-For" header in HTTP protocol. It can be directly obtained in the user-defined LOG of Apache and Nginx.

B.

"Visitor's real IP" can only be obtained by modifying the application

C.

You can one-step activate the "recording visitor's real IP" function in Alibaba Cloud CDN console to directly view the visitor's real IP in the access log.

D.

In Windows, if IIS is used: after installing "F5XForwardedFor" extension module. 'Visitor's real IP" can then be seen in the log.

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Questions 22

After creating an RDS for MySQL read-only instance, which of the following CAN NOT be performed by the read-only instance in RDS management console?

Options:

A.

Parameter configuration

B.

Specification change

C.

SQL log auditing

D.

Intranet/Internet switchover

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Questions 23

User A is the system administrator of a company who frequently travels to Shanghai. Each time he remotely logs on to the server in Shanghai, an alert is reported, prompting, “Someone is remotely logging on to the server. Please pay attention to your server security.” Which of the following methods can be used to quickly and automatically resolve this problem?

Options:

A.

Open a ticket immediately to consult Alibaba Cloud engineers.

B.

Ask the company leaders for help.

C.

Log on to Alibaba Cloud console, and add a frequent logon location to the Security Center configuration item.

D.

Call a friend for help, who is a famous hacker in the industry.

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Questions 24

An Alibaba Cloud RDS read-only instance has its data synchronized from the master instance. Which of the following can be performed by the read-only instance from the RDS management console?

Options:

A.

Backup policy configuration and manual backup

B.

Database creation or deletion

C.

Editing its own whitelist

D.

Account authorization and account password changing

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Questions 25

You are using Auto Scaling with one scaling group already created, then you want to execute a task at a specific time such as removing 1 ECS instance every night at 00:00. To achieve this, which of the following operations should be performed'? (Number of correct answers; 2)

Options:

A.

Create a scaling rule

B.

Create a scheduled task.

C.

Create a new scaling group.

D.

Create an event-triggered task.

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Questions 26

A Virtual Private Cloud (VPC) is an isolated network environment that is completely isolated from each other The following statements about VPC are correct_________. (Number of correct answers: 2)

Options:

A.

Each VPC has an independent tunnel ID, and a tunnel ID corresponds to a virtualized network.

B.

Subnets can be divided like the traditional network environment. Different cloud servers within each subnet are connected by the same router and different subnets are interconnected by switches.

C.

ECS instances in a VPC use security group firewalls for Layer 2 network access control.

D.

The internal networks of different VPCs are completely isolated and can be interconnected through IP addresses mapped to the outside.

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Questions 27

Alibaba Cloud Server Load Balancer (SLB) provides services for distributing traffic among multiple ECS instances SLB can expand the application system's service capacity through traffic distribution, and improve the system's availability by eliminating SPoFs (Single Points of Failure). Which of the following statements are correct? (Number of correct answers; 2)

Options:

A.

One of SLB's features is the Health Check. If some of the backend ECS instances are down, whereas other backend ECS instances can still provide services, then the system can continue to work normally.

B.

When recreating an SLB instance that has an Internet IP address, a new Internet IP address will be assigned to the SLB instance.

C.

Before using SLB to provide external services, make sure that you have installed and correctly configured the SLB agent on all of the backend ECS instances.

D.

SLB provides a function to automatically synchronize data among backend ECS instances using rsync remote synchronization.

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Questions 28

All RDS for MySQL backups are full backups.

Options:

A.

True

B.

False

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Questions 29

Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. For a website consisting of static pages, they can use OSS to host these static pages. Meanwhile, using OSS in conjunction with ___________ product for acceleration purposes.

Options:

A.

ECS

B.

CDN

C.

VPC

D.

Container Service

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Questions 30

Cloud computing adopts a common model in Distributed Systems. It distributes a computing task to a resource pool (comprised of a large number of computers). Elastic utilization of the resource pool allows applications to obtain computing capacity, storage space, and message services according to needs. Which of the following statements are correct about cloud computing? (Choose four.)

Options:

A.

Large scale

B.

High availability

C.

Service on demand

D.

Versatility

E.

Container-based

F.

Only supports single tenant

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Questions 31

By using ApsaraDB for RDS to implement read/write splitting, which of the following can be achieved? (Number of correct answers 2)

Options:

A.

Write requests are distributed to multiple instances.

B.

Read requests are distributed to multiple instances.

C.

Read/write requests to the database are separated.

D.

Both read and write requests are distributed to multiple instance

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Questions 32

When the "'Obtain the Visitor's Real IP Address" function is enabled in Alibaba Cloud SLB For layer 7 services, you can obtain the real IP addresses of visitors through the______________field in HTTP header

Options:

A.

Connection

B.

Authorization

C.

Etag

D.

X-Forwarded-For

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Questions 33

Alibaba Cloud VPC utilizes tunneling technology. Each VPC has a unique tunnel ID, and a tunnel ID corresponds to a virtual network. As a result, VPC can achieve a similar isolation effect as that of a traditional VLAN.

Options:

A.

TRUE

B.

FALSE

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Questions 34

If an administrator often needs to manage multiple ECS instances in an Alibaba Cloud VPC through the Internet Which of the following solutions can meet this need at low costs and without affecting system security.

Options:

A.

None of these answers are correct.

B.

Choose an ECS instance from VPC and make it as the bastion host And then, apply an EIP and bind it to this ECS instance. After that the administrator can manage other ECS instances through this bastion host.

C.

Modify the VPC Security Group policy, to allow access from the Internet.

D.

Bind an EIP to each of the ECS instances, and Jog on to each of these ECS instances to manage them.

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Questions 35

For ECS and RDS instances under different Alibaba Cloud accounts but in the same region, which of the following statements is NOT correct for migrating self-built MySQL databases (running on ECS) to RDS?

Options:

A.

The data can be imported via the Intranet

B.

The data cannot be migrated.

C.

The data can be imported via the public network.

D.

The data can be imported by running mysqldump.

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Questions 36

Alibaba Cloud CloudMonitor allows you to customize monitoring metrics and alert policies. Which of the following statements about customized monitoring are correct? (Choose two.)

Options:

A.

Users can monitor concerned services and report collected monitoring data to CloudMonitor so that CloudMonitor processes the data and generates alerts according to the result.

B.

Users can only select limited and fixed templates, and monitor specified server performance indicators.

C.

The number of customized monitoring metrics is limited, and programs used to report metric data must be deployed on the Alibaba Cloud server.

D.

The number of customized monitoring metrics is not limited, and programs used to report metric data may be deployed on devices other than the Alibaba Cloud server.

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Questions 37

Which of the following is not a potential cause of latency on an RDS read-only instance?

Options:

A.

The load on this read-only instance is significant.

B.

There exists significant load on the ECS that is connected to this read-only instance.

C.

The specification of this read-only instance is too low.

D.

This read-only instance’s master instance is performing a lot of write operations.

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Questions 38

Which of the following statements is most accurate about the Data Transmission Service (DTS) database migration function?

Options:

A.

Supports database schema replication between instances.

B.

Supports warning when source and destination has some unresolved conflict found.

C.

Supports all of the above functions.

D.

Supports migrating MySQL databases from external sources.

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Questions 39

Alibaba Cloud SLB provides certificate upload and management services. You can bind the required certificate when creating a Listener. When using ___________ protocol, is a certificate mandatory?

Options:

A.

HTTPS

B.

HTTP

C.

TCP

D.

PPPoE

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Questions 40

OSS supports deleting buckets. Before deleting a bucket, you must delete all the files in the bucket, including incomplete upload segments.

Options:

A.

TRUE

B.

FALSE

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Questions 41

During a scaling activity, when Auto Scaling fails to add ECS instances into a scaling group, it will try to ensure transaction completeness and roll back the scaling activity.

For example, a scaling activity intends to create and add 20 ECS instances into the scaling group, but only 19 of them are added successfully. In this case, the entire scaling activity will be rolled back, and the 19 instances will be removed and released as well.

Options:

A.

TRUE

B.

FALSE

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Questions 42

When creating an Alibaba Cloud VPC, you must specify Intranet network segments used in the VPC with a CIDR Block. This CIDR Block can later be modified after the VPC is created.

Options:

A.

True

B.

False

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Questions 43

Alibaba Cloud Content Delivery Network (CDN) is a distributed network built on top of a base network with edge node server clusters distributed across various regions. If a user finds that the CDN cache hit rate is low, the possible reasons are ____________. (Choose three.)

Options:

A.

When websites have low access traffic and the files are not popular enough, the CDN will receive fewer requests and result in a lower cache hit rate.

B.

If the cache configuration is inappropriate (e.g., overly short Cache Expiry Time for popular files), this may result in frequent back-to-source operations.

C.

Insufficient bandwidth was selected when enabling the CDN service, making the service capacity reach its limit.

D.

If the origin site has a large number of dynamic resources or mostly non-cacheable content, this can also lead to frequent back-to-source operations.

E.

The HTTP Header setting may cause the cache to fail. In this case, users must check the origin site’s “Cache-Control” and “Expires” settings.

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Questions 44

A popular worldwide forum stores static resources in OSS and accelerates access using CON Users find that the speed of downloading files from the forum has been greatly improved, but uploading files is slow due to the long data transmission distance, resulting in a bad access experience In order to improve the speed of uploading files for users in this forum, so that users in different regions can have a good access experience, we recommend that the forum can________.

Options:

A.

Activate the PCDN service

B.

Activate OSS in different regions as file storage, and synchronize data between OSS in different regions through cross-region replication

C.

Enable the transmission acceleration service for O: Enable OSS

D.

Enable OSS static website hosting

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Questions 45

Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. To control access to files stored on OSS, OSS provides multiple access permissions for each bucket. These bucket permissions are _______________. (Choose three.)

Options:

A.

Private-read

B.

Public-read-write

C.

Public-read

D.

Private

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Questions 46

Before data communication is setup, the security groups match the security group rules one by one to query whether to allow access requests Assume that the user has created two security group rules 1 and 2 The protocol type, port range, authorization type, and authorization object of the two security group rules are the same. The difference is that Rule 1 is a denial policy, rule 2 is an allowed policy, so the following statement is correct_______ (Number of correct answers 2)

Options:

A.

If rule 1 and rule 2 have the same priority, the rule of the denial policy takes effect first, and the rule of the allowed policy does not take effect

B.

If rule 1 and rule 2 have the same priority, the rule of the allowed policy takes effect first, and the rule that of the denial policy does not take effect.

C.

If rule 1 and rule 2 have different priorities, the rule with a small priority number takes effect

D.

If rule 1 and rule 2 have different priorities, the rule with a large priority number takes effect.

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Questions 47

Which of the following Alibaba Cloud products can provide Anti-DDoS service? (Choose two.)

Options:

A.

Security Center

B.

Anti-DDoS Origin Service

C.

Anti-DDoS Pro Service

D.

Cloud Firewall

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Questions 48

RDS accounts can be used to connect with the databases created on a given RDS instance. Each account can be bound with multiple databases. Yet, the read/write permissions of each database can only be assigned to one RDS account

Options:

A.

True

B.

False

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Questions 49

The effect of CDN is highly related to the scenario in which it is used. _______________________ is not an applicable scenario to use CDN.

Options:

A.

Personal netdisk service having low repeated access rate

B.

Pure static enterprise website

C.

Short video delivery website

D.

Application download site

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Questions 50

Auto Scaling often works in conjunction with SLB, where scaling groups and SLB must be in the same region.

Options:

A.

TRUE

B.

FALSE

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Questions 51

Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. OSS uses multiple copies of data to achieve data redundancy and can restore interrupted OSS services within two minutes when hardware failure occurs.

Options:

A.

TRUE

B.

FALSE

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Questions 52

The Alibaba Cloud CDN can directly accelerate access to the files stored in OSS and reduce OSS traffic costs.

Options:

A.

True

B.

False

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Exam Code: ACP-Cloud1
Exam Name: ACP Cloud Computing Certification
Last Update: Nov 3, 2024
Questions: 176
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