Alibaba ACA-Operator Quiz 1 Topic 5 Questions 1-5

Question: 1

You can create an event notification rule in Message Service and push notifications to the specified consumer in the form of messages, to receive events from specified Alibaba Cloud resources. Which of the following options are correct statements about the Message Service (MS) service? (Number of correct answers: 2)

AEvent Notifications can cross regions.

BMessage Service provides synchronous notification to ensure the consistency between the message acknowledgment and event processing.

CThe event notification message is retained within the valid time. When you fail to receive an event message, the event notification message is retained based on the specified retry policy.

DThe consumer type of the event notification message can be HTTP Server, Queue, or Topic.

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Question: 2

Which of the following engines is NOT supported by PolarDB?

AOracle

BMongoDB

CMySQLo

DPostgreSQL

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Question: 3

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?

AStore the files in Cloud Disk and delete the files when Function Compute function call completes.

BCopy the files to NFS and delete the files when the Function Compute function call completes.

CStore the files in the /tmp directory on a temporary ECS instance, and delete the files at when the Function Compute function call completes.

DCopy the files to an OSS bucket with a lifecycle policy configured to delete the files automatically.

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Question: 4

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

AYou can manually create snapshots

BYou can create automatic snapshots

CYou can roll back a disk by using a snapshot

DYou can create an ECS instance from a snapshot

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Question: 5

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

ATrue

BFalse

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Alibaba ACA-Operator Quiz:1 Topic:5 Questions:1-5