[Q33-Q54] Exams-boost ACA-Operator Real Exam Question Answers Updated [Mar 06, 2022]

Exams-boost ACA-Operator Real Exam Question Answers Updated [Mar 06, 2022]

Easily To Pass New Alibaba Cloud ACA-Operator Dumps with 63 Questions

Alibaba Cloud ACA-Operator Exam Syllabus Topics:

Topic	Details
Topic 1	Use Alibaba Cloud services and features to manage and assess resource utilization Implement scalability and elasticity based on a given use case using Auto-Scaling and Load Balancer
Topic 2	Network design for resource sharing between different accounts Use Cloud Config to track resource configuration changes and evaluate configuration compliance
Topic 3	Deploy and configure ECS on Alibaba Cloud, Set up remote access to ECS Apply Alibaba Cloud Networking Features
Topic 4	Migrate data from a local environment to OSS or RDS using DTS or OSS utilities Implement data backup, archiving and retention for Cloud Disk, RDS, and OSS
Topic 5	Manage identity and authentication for an organization’s users, across multiple platforms Publish container images to Alibaba Cloud Container Registry (ACR)
Topic 6	Create an ECS image to package the application and runtime environments for easy distribution Gather and interpret relevant information for network troubleshooting
Topic 7	Identify and implement data protection, encryption, and capacity planning needs Enable finance to see what is being spent, when, and by whom
Topic 8	Use Cloud Monitor to monitor application resource usage and health status Cloud Architecture- High Availability and Fault Tolerance

 

NEW QUESTION 33
Tracing Analysis is used to analyze and diagnose performance bottlenecks in a distributed application architecture and make microservice development and diagnostics more efficient.

• A. True
• B. False

Answer: A

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/90277.htm

 

NEW QUESTION 34
A company is developing a music application based on OSS and ECS, their users can download mp3 files after signing up for the application. Recently, the public network traffic to the OSS has doubled but the increase of registered users is less than 10%. After in-depth analysis, system operators find that many download requests are requested from the external search engine. In this case, which of the following measures is thought to be able to address this issue?

• A. Enable "Hotlink protection" of OSS and use an HTTP Referer whitelist to prevent unauthorized users from accessing your data
• B. Use SLB for extra protection
• C. Change the website access mode to HTTPS
• D. Migrate music files from the OSS to the data disks for ECS instances

Answer: B

Explanation:
Explanation
You can configure a HTTP Referer whitelist for a bucket to prevent extra fees caused by unauthorized access to the bucket.
https://www.alibabacloud.com/help/doc-detail/31901.htm

 

NEW QUESTION 35
PolarDB supports three engines: MySQL, PostgreSQL and Oracle.

• A. False
• B. True

Answer: A

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/58764.htm

 

NEW QUESTION 36
Which of the following database connection methods does ApsaraDB for Redis support? (Number of correct answers: 2)

• A. Sentinel
• B. Redis-cli
• C. Aliyun-cli
• D. DMS (Data Management Service)

Answer: B,D

 

NEW QUESTION 37
When using Alibaba Cloud CDN, a visitor's request will first be routed to a CDN edge node, and in the event of a cache miss at this edge node, the node will fetch data from the origin site (back-to-source request). Even with this redirection, it is possible for the origin site to see the visitor's real IP address. Which of the following statements about obtaining the visitor's real IP address are correct? (Number of correct answers: 2)

• A. visitor's real IP address can only be obtained by modifying the site or web application.
• B. visitor's real IP address is stored in the "X-Forwarded-For" HTTP header. It can be directly obtained via Apache or NGINX logs.
• C. You can activate the "record visitor's real IP" function in the Alibaba Cloud CDN console, then you can directly view visitor's IP addresses from the Alibaba Cloud CDN access logs.
• D. In Windows, if IIS is used, after installing the "F5XForwardedFor" extension module, the visitor's real IP address can be seen via IIS logs.

Answer: B,D

 

NEW QUESTION 38
Which Alibaba Cloud service is used to manage cloud computing resources including the deployment?

• A. Resource Access Management (RAM)
• B. Operation Orchestration Service (OOS)
• C. Resource Orchestration Service (ROS)
• D. Maintenance Orchestration Service (MOS)

Answer: C

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/28852.htm

 

NEW QUESTION 39
RAM supports custom policies.

• A. True
• B. False

Answer: A

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/93733.htm

 

NEW QUESTION 40
A developer accesses logs in a Log Service Logstore via the API. The error code returned by the server is 404.
Which of these could be the cause?

• A. Server internal error
• B. The log project (Project) does not exist
• C. Server is busy: please try later
• D. The requested digital signature does not match

Answer: B

Explanation:
Explanation
Error 404 ProjectNotExist: The error message returned because the specifiedproject does not exist.https://www.alibabacloud.com/help/doc-detail/29018.htm

 

NEW QUESTION 41
Alibaba Cloud ActionTrail is a service that monitors and records the actions of your Alibaba Cloud account, including the access to and use of cloud products and services through the Alibaba Cloud console, API operations, and SDKs.

• A. True
• B. False

Answer: A

 

NEW QUESTION 42
Which of these metrics are collected by CloudMonitor's Host Monitoring function? (Number of correct answers: 3)

• A. CPU status of the ECS instance
• B. Running processes on the ECS instance
• C. ECS network I/O
• D. Storage space used by OSS buckets

Answer: A,B,C

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/35170.htm

 

NEW QUESTION 43
Resource Management provides a collection of resource management services that support enterprise IT administration.

• A. True
• B. False

Answer: A

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/94475.htm

 

NEW QUESTION 44
Which of the following statements about ECS Snapshot is NOT correct?

• A. You can manually create snapshots
• B. You can roll back a disk by using a snapshot
• C. You can create automatic snapshots
• D. You can create an ECS instance from a snapshot

Answer: D

Explanation:
Explanation
You can create a custom image from a snapshot that contains the operating system and data of an ECS instance. Then, you can use the custom image to create multiple instances that have identical application environments.
https://www.alibabacloud.com/help/doc-detail/25391.htm

 

NEW QUESTION 45
Alibaba Cloud ActionTrail is a service that monitors and records the actions of your Alibaba Cloud account, including the access to and use of cloud products and services through the Alibaba Cloud console, API operations, and SDKs.

• A. True
• B. False

Answer: A

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/28804.htm

 

NEW QUESTION 46
Which of the following is NOT required for SMC (Server Migration Center) to migrate a server to Alibaba Cloud?

• A. The SMC client transfers the source data to an intermediate ECS instance
• B. From the SMC console, configure the type of disk image to be generated during the migration
• C. The SMC backend service generates a target Alibaba Cloud image based on the migration source
• D. Import the migration source information to the SMC console

Answer: B

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/127116.htm

 

NEW QUESTION 47
Which of these Alibaba Cloud services are used for security (either credentials management, logging, or auditing?) (Number of correct answers: 3)

• A. Key Management Service (KMS)
• B. ActionTrail
• C. Table store
• D. Log Service

Answer: A,B,D

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/27280.htm

 

NEW QUESTION 48
Which database utility is suitable for managing databases in a centralized manner?

• A. DAS
• B. DTS
• C. DBS
• D. DMS

Answer: D

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/47550.htm

 

NEW QUESTION 49
ApsaraDB for HBase is a cost-effective cloud-based intelligent SQL service that is of high scalability and compatible with the open source HBase.

• A. False
• B. True

Answer: A

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/49501.htm

 

NEW QUESTION 50
Which of the following web applications are suitable for deployment on Simple Application Server (SAS), as compared with ECS? (Number of correct answers: 3)

• A. Set up a NoSQL database service
• B. Quickly build a small e-commerce website
• C. Quickly build a personal blog website
• D. Quickly build serverless site using Function Compute
• E. Quickly build a personal, learning, or test environment

Answer: B,C,E

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/58620.htm

 

NEW QUESTION 51
Which of these is NOT a function of CloudMonitor?

• A. Set alarm rules for any of CloudMonitor's metrics
• B. Set the alarm rule effective period (the time during which the alarm may trigger)
• C. Automatically take remedial action when an alarm triggers
• D. Set notification methods for different alarms

Answer: C

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/35170.htm

 

NEW QUESTION 52
Which of the following services is used to establish private network connections between virtual private clouds (VPCs) in different regions, or between VPCs and data centers?

• A. NAT Gateway
• B. VPN Gateway
• C. Express Connect
• D. CEN (Cloud Enterprise Network)

Answer: D

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/59870.htm

 

NEW QUESTION 53
A Developer is creating a Function Compute function. This function requires around 1 GB of temporary storage for files while executing. These files will not be needed after the function is completed for a fixed period. How can this developer MOST efficiently handle the temporary files?

• A. Store the files in the /tmp directory on a temporary ECS instance, and delete the files at when the Function Compute function call completes.
• B. Copy the files to an OSS bucket with a lifecycle policy configured to delete the files automatically.
• C. Copy the files to NFS and delete the files when the Function Compute function call completes.
• D. Store the files in Cloud Disk and delete the files when Function Compute function call completes.

Answer: B

 

NEW QUESTION 54
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