Alibaba ACA-Developer Practice Questions| TestInsights

Question 2

In PolarDB, if an UPDATE SQL statement encounters an issue, you need to check the execution plan to figure out the root cause. However, in the production environment, to avoid affecting the production data, what statement should you use to view the execution plan? (Number of correct answers: 2)

Aexplain SQL

Bexplain analyze SQL

Cexplain verbose SQL

Dexplain analyze verbose SQL

Correct : B, C

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Aexplain SQL

Bexplain analyze SQL

Cexplain verbose SQL

Dexplain analyze verbose SQL

Question 3

The event monitoring feature in CIoudMonitor provides custom event monitoring functions. Which of the following data reporting methods are included? (Number of correct answers: 3)

AReport event monitoring through the Python SDK

BReport event monitoring through the Java SDK

CReport event monitoring data via HTTP

DReport event monitoring data through the command line (CU)

Correct : A, B, C

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AReport event monitoring through the Python SDK

BReport event monitoring through the Java SDK

CReport event monitoring data via HTTP

DReport event monitoring data through the command line (CU)

Question 4

Which of the following is NOT a valid state for a scaling activity in Alibaba Cloud's Elastic Scaling Service ESS -also known as Auto Scaling) state of the scaling activity in the Alibaba Cloud elastic

scaling group?

ARejected

BExecuting

CFailed

DTimeout

Correct : C

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ARejected

BExecuting

CFailed

DTimeout

Question 5

When versioning is enabled for an OSS Bucket, previous versions of objects will be retained, using storage space and incurring additional costs. How can you save space and reduce costs, while retaining some of the benefits of object versioning?

AAvoid using version management.

BUse the Function Compute Service to regularly check for and delete old versions of objects.

CUse OSS s built in lifecycle management capabilities to automatically delete old versions of objects after a set time.

DUse OSS's built in lifecycle management capabilities to move old versions of objects to Archival Storage.

Correct : C

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AAvoid using version management.

BUse the Function Compute Service to regularly check for and delete old versions of objects.

CUse OSS s built in lifecycle management capabilities to automatically delete old versions of objects after a set time.

DUse OSS's built in lifecycle management capabilities to move old versions of objects to Archival Storage.

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