Alibaba Cloud ACA-Operator Exam Info and Free Practice Test RealVCE [Q37-Q55]

Alibaba Cloud ACA-Operator Exam Info and Free Practice Test | RealVCE

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Alibaba Cloud ACA-Operator Exam Syllabus Topics:

Topic	Details
Topic 1	Network design for resource sharing between different accounts Use Cloud Config to track resource configuration changes and evaluate configuration compliance
Topic 2	Identify and implement data protection, encryption, and capacity planning needs Enable finance to see what is being spent, when, and by whom
Topic 3	Manage identity and authentication for an organization’s users, across multiple platforms Publish container images to Alibaba Cloud Container Registry (ACR)
Topic 4	Implement connectivity to build a full-mesh global network on cloud Create container images for lightweight application packaging using Docker
Topic 5	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 6	Manage permissions for an enterprise organization on the cloud Recognize and differentiate highly available and resilient architectures on Alibaba Cloud
Topic 7	Create an ECS image to package the application and runtime environments for easy distribution Gather and interpret relevant information for network troubleshooting
Topic 8	Use Cloud Monitor to monitor application resource usage and health status Cloud Architecture- High Availability and Fault Tolerance
Topic 9	Deploy and configure ECS on Alibaba Cloud, Set up remote access to ECS Apply Alibaba Cloud Networking Features
Topic 10	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

 

NEW QUESTION 37
Which database utility is suitable for automate perception, healing, optimization, O&M, and security assurance for databases?

• A. DMS
• B. DTS
• C. DBS
• D. DAS

Answer: D

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/64851.htm

 

NEW QUESTION 38
Which of the following methods can NOT be used for operating Alibaba Cloud Elastic Compute Service (ECS) instances?

• A. CLI
• B. SDK
• C. Console
• D. CloudFormation

Answer: D

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/25422.htm

 

NEW QUESTION 39
Which of the following options are correct for Multipart Upload and Resumable Upload in Object Storage Service (OSS)? (Number of correct answers: 3)

• A. After an upload is interrupted, the portions of the file which have successfully uploaded prior to the interruption will be saved in the OSS bucket
• B. Use Multipart Upload to upload multiple parts of a file in parallel to speed up the upload process
• C. If the upload fails due to an accident during the uploading of fragments, you need to upload all the fragments again
• D. Multipart Upload is usually used when the size of the file to be uploaded is large

Answer: A,B,D

 

NEW QUESTION 40
Which of the following statements about ECS Snapshot is NOT correct?

• A. You can manually create snapshots
• B. You can create automatic snapshots
• C. You can roll back a disk by using a snapshot
• 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 41
Which of these are important concepts in Terraform's configuration language, HCL? (Number of correct answers: 3)

• A. Service Mesh
• B. Resource
• C. Provider
• D. Variable

Answer: B,C,D

 

NEW QUESTION 42
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. 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.
• B. In Windows, if IIS is used, after installing the "F5XForwardedFor" extension module, the visitor's real IP address can be seen via IIS logs.
• C. visitor's real IP address can only be obtained by modifying the site or web application.
• D. visitor's real IP address is stored in the "X-Forwarded-For" HTTP header. It can be directly obtained via Apache or NGINX logs.

Answer: B,D

 

NEW QUESTION 43
Which Alibaba Cloud service is an automated operations and maintenance (O&M) service to execute O&M tasks?

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

Answer: A

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/120556.htm

 

NEW QUESTION 44
Which of the following fields should be defined in the Alibaba Cloud Terraform Provider Configuration? (Number of correct answers: 3)

• A. region
• B. ecret_key
• C. access_key
• D. image_id

Answer: A,B,C

Explanation:
Explanation
https://www.terraform.io/docs/language/providers/requirements.html

 

NEW QUESTION 45
Which of the following engines is NOT supported by PolarDB?

• A. MySQLo
• B. MongoDB
• C. PostgreSQL
• D. Oracle

Answer: B

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

 

NEW QUESTION 46
Which of these metrics are collected by CloudMonitor's Host Monitoring function? (Number of correct answers: 3)

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

Answer: A,B,D

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

 

NEW QUESTION 47
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 48
Which command should you run to create the resources described in the Terraform scripts?

• A. terraform plan
• B. terraform init
• C. terraform destroy
• D. terraform apply

Answer: D

Explanation:
Explanation
https://www.terraform.io/docs/cli/commands/apply.html

 

NEW QUESTION 49
Serverless Workflow allow you to orchestrate distributed tasks in sequence, branch, and parallel modes, and ensure that tasks are reliably coordinated according to your workflow logic. Which of the following service integration modes is not supported by Serverless Workflow?

• A. Asynchronous mode
• B. Waiting for callback mode
• C. Request response mode
• D. Synchronization mode

Answer: A

Explanation:
Explanation
Asynchronous mode is only possible with the combination of MNS
service.https://static-aliyun-doc.oss-cnhangzhou.aliyuncs.com/download%2Fpdf%2F122479%2FBest_Practices_

 

NEW QUESTION 50
RAM supports custom policies.

• A. True
• B. False

Answer: A

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

 

NEW QUESTION 51
Your company decided to replicate the whole cloud environment in another region and use it as a cross-region failover in disaster recovery scenarios.
Your current environment includes Elastic Compute Service (ECS) instances, Server Load Balancer (SLB) instances and Relational Database Service (RDS) instances. Which of the following statements is correct?

• A. You can provision multiple ECS instances in multiple regions, thereby leveraging automatic high availability across regions
• B. You can use DNS to resolve domain names to the IP addresses of multiple SLB instances running in different regions
• C. You can provision multiple SLB instances in multiple regions, thereby leveraging automatic high availability across regions
• D. You can use DNS to resolve domain names to the IP addresses of multiple ECS instances running in different regions

Answer: B

Explanation:
Explanation
https://cloudacademy.com/course/alibaba-server-load-balancer-1066/alibabas-high-availability/

 

NEW QUESTION 52
After you enable health checks of Server Load Balancer (SLB), when one backend ECS instance is declared as unhealthy, which of the following statements is correct?

• A. Requests are forwarded to other normal ECS instances. When the faulty ECS instance becomes normal, SLB forwards requests to the ECS instance again
• B. Requests are not forwarded to the ECS instances and you get back a 400 error
• C. Requests are forwarded to other normal ECS instances and the unhealthy ECS instance is shutted down
• D. Requests are not forwarded to the ECS instances and you get back a 500 error

Answer: A

Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/27702.htm

 

NEW QUESTION 53
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 54
Which database utility is suitable for managing databases in a centralized manner?

• A. DMS
• B. DTS
• C. DBS
• D. DAS

Answer: A

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

 

NEW QUESTION 55
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