Alibaba Cloud ACA-Operator Exam Dumps [2022] Practice Valid Exam Dumps Question
ACA-Operator Dumps - Grab Out For [NEW-2022] Alibaba Cloud Exam
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NEW QUESTION 36
Which of the following statements about ECS Snapshot is NOT correct?
- A. You can roll back a disk by using a snapshot
- B. You can manually create snapshots
- C. You can create an ECS instance from a snapshot
- D. You can create automatic snapshots
Answer: C
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 37
________________ is a fully-managed event-driven computing service that allows you to run code in an elastic and reliable way?
- A. Elastic Compute Service (ECS)
- B. Serverless Workflow
- C. Function Compute
- D. Batch Compute
Answer: C
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/52895.htm
NEW QUESTION 38
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. 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
- C. Use Multipart Upload to upload multiple parts of a file in parallel to speed up the upload process
- D. Multipart Upload is usually used when the size of the file to be uploaded is large
Answer: B,C,D
NEW QUESTION 39
Which of the following database connection methods does ApsaraDB for Redis support? (Number of correct answers: 2)
- A. Aliyun-cli
- B. Sentinel
- C. Redis-cli
- D. DMS (Data Management Service)
Answer: C,D
NEW QUESTION 40
How does Cloud Config get permission to gather information about other Alibaba Cloud services?
- A. An Access Key
- B. It gets automatic permission to access everything, because it is an Alibaba Cloud service
- C. A RAM Role
- D. By storing a copy of your password
Answer: C
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/156642.htm
NEW QUESTION 41
Which of the following options correctly describes CloudMonitor Custom Monitoring and Custom Events?
(Number of correct answers: 2)
- A. Custom Monitoring is used for periodic and continuous collection of time series monitoring data, queries, and alarms
- B. Custom Events is for periodic and continuous collection of time series monitoring data, queries, and alarms
- C. Custom Monitoring is used for collection of non-continuous event data, such as information about ECS instance restarts
- D. Custom Events is used for collection of continuous event type data, queries, and alarms
Answer: A,D
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/35170.htm
NEW QUESTION 42
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 SLB instances in multiple regions, thereby leveraging automatic high availability across regions
- B. You can provision multiple ECS instances in multiple regions, thereby leveraging automatic high availability across regions
- C. You can use DNS to resolve domain names to the IP addresses of multiple SLB instances running in different regions
- D. You can use DNS to resolve domain names to the IP addresses of multiple ECS instances running in different regions
Answer: C
Explanation:
Explanation
https://cloudacademy.com/course/alibaba-server-load-balancer-1066/alibabas-high-availability/
NEW QUESTION 43
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. Synchronization mode
- B. Asynchronous mode
- C. Request response mode
- D. Waiting for callback mode
Answer: B
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 44
Which of the following descriptions of the principles of Alibaba Cloud SSL certificate private key protection is correct?
- A. Alibaba Cloud uses the built-in functionality of the SSL certificate service to encrypt and store the private key to ensure the security of your certificate's private key
- B. Alibaba Cloud Certificate Service keys are loaded into memory in plaintext format ONLY when needed.
- C. The plaintext of Alibaba Cloud's private key is usually stored on disk and backed up regularly
- D. Alibaba Cloud Certificate Service uses symmetric encryption to save the certificate private key.
Answer: B
NEW QUESTION 45
Which of these log formats is currently supported by Alibaba Cloud's ActionTrail?
- A. XML
- B. Markdown
- C. HTML
- D. JSON
Answer: D
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/140850.htm
NEW QUESTION 46
Cloud Config tracks configuration changes of your resources and evaluates configuration compliance.
- A. True
- B. False
Answer: A
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/127388.htm
NEW QUESTION 47
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 48
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 personal, learning, or test environment
- C. Quickly build serverless site using Function Compute
- D. Quickly build a personal blog website
- E. Quickly build a small e-commerce website
Answer: B,D,E
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/58620.htm
NEW QUESTION 49
RAM supports custom policies.
- A. True
- B. False
Answer: A
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/93733.htm
NEW QUESTION 50
Which of the following is NOT required for SMC (Server Migration Center) to migrate a server to Alibaba Cloud?
- A. Import the migration source information to the SMC console
- B. From the SMC console, configure the type of disk image to be generated during the migration
- C. The SMC client transfers the source data to an intermediate ECS instance
- D. The SMC backend service generates a target Alibaba Cloud image based on the migration source
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/127116.htm
NEW QUESTION 51
Which database utility is suitable for managing databases in a centralized manner?
- A. DAS
- B. DTS
- C. DMS
- D. DBS
Answer: C
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/47550.htm
NEW QUESTION 52
Which of the following features are unique to Alibaba Cloud Container Registry, as compared with Docker Hub? (Number of correct answers: 2)
- A. You can set your image repository access to public or private.
- B. For source code hosted on websites outside China, Container Registry can use servers outside China to build Docker images, even when you are using a Container Registry instance in Mainland China.
- C. You can create and delete image repositories in different regions based on your needs.
- D. Container Registry can automatically build new Docker images when source code changes.
Answer: B,C
NEW QUESTION 53
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. Resource Group
- B. Cloud Configo
- C. ActionTrail
- D. CloudMonitor
Answer: C
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/28804.htm
NEW QUESTION 54
A developer is making the ModifyDBInstanceSpec API call to change the specifications of an RDS instance, but the operation fails. Why could this be? (Number of correct answers: 3)
- A. The instance is in the "running" state
- B. The instance has a backup task being executed
- C. No instance type (specification) was included in the request parameters
- D. The targeted RDS instance is a disaster recovery instance
Answer: B,C,D
NEW QUESTION 55
Which of the following engines is NOT supported by PolarDB?
- A. Oracle
- B. MongoDB
- C. MySQLo
- D. PostgreSQL
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/58764.htm
NEW QUESTION 56
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 57
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