Alibaba ACA-Developer Exam Practice Test Instant Access

Question 1

Which data format is NOT supported by Alibaba Cloud Message Service?

AXML

BJSON

CSIMPLIFIED

DVERBOSE

Answer : D

Question 2

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.

Answer : C

Question 3

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

Answer : C

Question 4

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)

Answer : A, B, C

Question 5

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

Answer : B, C

Question 6

What migration features does Alibaba Cloud SMC (Server Migration Center) support? (Number of correct answers: 3)

ASupports incremental data migration

BSupports batch migration

CSupports migration from virtual machines to physical machines

DSupports migration to Container Registry

ESupports all versions Microsoft Windows

Answer : A, B, D

Question 7

Which of the following descriptions describes the (Security Token Service) STS service correctly? (Number of correct answers: 3)

AThrough the STS service, RAM users or RAM roles can obtain a temporary token that allows them to call the Alibaba Cloud API or use the web console

BA STS request consists of an access address, communication protocol, request method, request parameters and character encoding

CWhen calling the STS API, in order to ensure the safe calling of the API, Alibaba Cloud will authenticate each API request through a signature when each API call is made

DThe STS service supports the use of both HTTP and HTTPS protocols

Answer : B, C, D

Alibaba ACA Developer Exam Practice Test