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Alibaba Cloud ACA-Operator Exam Syllabus Topics:
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NEW QUESTION 17
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 ECS 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 SLB instances running in different regions
Answer: D
Explanation:
Explanation
https://cloudacademy.com/course/alibaba-server-load-balancer-1066/alibabas-high-availability/
NEW QUESTION 18
When you use SQL statements to access tables in a database without an index configured, a full table scan will be performed. If a table contains a large amount of data, this kind of scan will access a large amount of data and consume a lot of the database's resources. Which of the following options are best practices when creating database indexes? (Number of correct answers: 3)
- A. Apply indexing to fields of fixed length (preferably not long fields).
- B. Add an index to a field that is frequently queried but does not frequently perform add, delete, or modify operations.
- C. Applies indices to fields to contain many records.
- D. Adhere to the rightmost prefix principle when using composite indexes
- E. A table should not contaiiAiore than 6 indexed fields.
Answer: A,B,E
NEW QUESTION 19
Which of these services can be used to monitor Alibaba Cloud resources and send alerts? (Number of correct answers: 3)
- A. CloudMonitor
- B. Cloud Config
- C. ActionTrail
- D. Object Storage Service (OSS)
Answer: A,B,C
Explanation:
Explanation
OSS is an object storage service.
NEW QUESTION 20
Which of the following Alibaba Cloud services offers a software-defined wide area network (SD-WAN) solution based on cloud-native technologies?
- A. Content Delivery Network (CDN)
- B. NAT Gateway
- C. Smart Access Gateway (SAG)
- D. VPN Gateway
Answer: C
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/69227.htm
NEW QUESTION 21
Which configuration language does Terraform support?
- A. HCL
- B. YAML
- C. Python
- D. XML
Answer: A
Explanation:
Explanation
https://www.terraform.io/docs/language/syntax/configuration.html
NEW QUESTION 22
Which Alibaba Cloud service is used to manage cloud computing resources including the deployment?
- A. Resource Orchestration Service (ROS)
- B. Resource Access Management (RAM)
- C. Operation Orchestration Service (OOS)
- D. Maintenance Orchestration Service (MOS)
Answer: A
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/28852.htm
NEW QUESTION 23
If you have a Node.js based application and you plan to migrate it to Alibaba Cloud Function Compute, which of the following steps is unnecessary?
- A. Configure program startup commands and access ports in the Function Compute console
- B. Manually install the Node.js in the Function Compute console
- C. Start and verify the application in the Function Compute console
- D. Create a single web application and upload the corresponding code package via the Function Compute console (or fcli)
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/73329.htm
NEW QUESTION 24
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. Quickly build serverless site using Function Compute
- B. Quickly build a small e-commerce website
- C. Quickly build a personal blog website
- D. Quickly build a personal, learning, or test environment
- E. Set up a NoSQL database service
Answer: B,C,D
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/58620.htm
NEW QUESTION 25
Which database utility is suitable for managing databases in a centralized manner?
- A. DAS
- B. DBS
- C. DTS
- D. DMS
Answer: D
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/47550.htm
NEW QUESTION 26
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. Import the migration source information to the SMC console
- C. From the SMC console, configure the type of disk image to be generated during the migration
- D. The SMC backend service generates a target Alibaba Cloud image based on the migration source
Answer: C
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/127116.htm
NEW QUESTION 27
Which of the following steps is NOT mandatory when creating an API through Alibaba Cloud API Gateway?
- A. Define the API backend service
- B. Attach a domain name
- C. Define basic API information
- D. Define API Request parameters
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/29478.htm
NEW QUESTION 28
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. False
- B. True
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/28804.htm
NEW QUESTION 29
Resource Management provides a collection of resource management services that support enterprise IT administration.
- A. False
- B. True
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/94475.htm
NEW QUESTION 30
You need to log all actions taken by users of your Alibaba Cloud account, whether via the command line tools or the web console. Which Alibaba Cloud product can you use to create a log of user operations?
- A. CloudMonitor
- B. ActionTrail
- C. Cloud Configo
- D. Resource Group
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/28804.htm
NEW QUESTION 31
Which of the following options are correct for Multipart Upload and Resumable Upload in Object Storage Service (OSS)? (Number of correct answers: 3)
- A. If the upload fails due to an accident during the uploading of fragments, you need to upload all the fragments again
- B. Multipart Upload is usually used when the size of the file to be uploaded is large
- C. 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
- D. Use Multipart Upload to upload multiple parts of a file in parallel to speed up the upload process
Answer: B,C,D
NEW QUESTION 32
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 and the unhealthy ECS instance is shutted down
- B. Requests are not forwarded to the ECS instances and you get back a 400 error
- C. Requests are not forwarded to the ECS instances and you get back a 500 error
- D. Requests are forwarded to other normal ECS instances. When the faulty ECS instance becomes normal, SLB forwards requests to the ECS instance again
Answer: D
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/27702.htm
NEW QUESTION 33
Which command should you run to create the resources described in the Terraform scripts?
- A. terraform init
- B. terraform plan
- C. terraform apply
- D. terraform destroy
Answer: C
Explanation:
Explanation
https://www.terraform.io/docs/cli/commands/apply.html
NEW QUESTION 34
Alibaba Cloud CloudMonitor is a service that monitors Alibaba Cloud resources and internet applications.
Which of the following functions are provided by CloudMonitor? (Number of correct answers: 4)
- A. Cloud product monitoring
- B. Site monitoring
- C. Custom monitoring
- D. Alerts
- E. Custom firewall
Answer: A,B,C,D
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/35170.htm
NEW QUESTION 35
Which command is used to get the Docker daemon information?
- A. docker pull
- B. docker version
- C. docker image
- D. docker info
Answer: D
Explanation:
Explanation
https://docs.docker.com/engine/reference/commandline/info/
NEW QUESTION 36
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