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ACA-Developer ACA Developer Certification Question and Answers

Question # 4

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?

A.

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

B.

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

C.

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

D.

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

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Question # 5

A developer is making the ModifyDDInstanceSpec 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.

No instance type (specification) was included in the request parameters

C.

The instance has a backup task being executed

D.

The targeted RDS instance is a disaster recovery instance

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Question # 6

You can use Alibaba Cloud Data transmission service (DTS) or the open source tool Redis-shake to migrate and synchronize data from a local Redis instance to an Alibaba Cloud Redis instance. What is one feature which DTS has but Redis-shake does not?

A.

Full data migration

B.

Incremental data migration

C.

One-way data synchronization

D.

Two-way data synchronization

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Question # 7

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

A.

Supports incremental data migration

B.

Supports batch migration

C.

Supports migration from virtual machines to physical machines

D.

Supports migration to Container Registry

E.

Supports all versions Microsoft Windows

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Question # 8

A developer accesses logs in a Log Service Logstore via the API. The error code returned by the server is 404. Which of these could be the cause?

A.

The log project (Project) does not exist

B.

The requested digital signature does not match

C.

Server internal error

D.

Server is busy: please try later

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Question # 9

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 certificates private key

B.

The plaintext of Alibaba Cloud's private key is usually stored on disk and backed up regularly

C.

Alibaba Cloud Certificate Service uses symmetric encryption to save the certificate private key

D.

Alibaba Cloud Certificate Service keys are loaded Into memory in plaintext format ONLY when needed

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Question # 10

Which of the following detection protocol is NOT supported by CloudMonitor's Site Monitoring feature?

A.

HTTP(S)

B.

TCP/UDP

C.

DNS

D.

SNMP

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Question # 11

Which of the following statements describes AKs (Access Keys) incorrectly?

A.

AK can refer to both the AccessKey ID and the AccessKey secret

B.

You can use AK to construct an API request and the corresponding resources can be manipulated if your request successfully..

C.

An AccessKey ID and AccessKey Secret cannot be used separately

D.

AccessKey Secrets for RAM sub-accounts can be queried at any time on the Console Interface after creation

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Question # 12

What are the required parameters for the Python SDK to create a client to access Alibaba Cloud's API? (Number of correct answers: 3)

A.

access.keyjd

B.

access.key.secret

C.

regionjd

D.

zone jd

E.

vpcjd

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Question # 13

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

A.

XML

B.

JSON

C.

SIMPLIFIED

D.

VERBOSE

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Question # 14

A company has some new content that needs to be promoted (such as new features, new activities, new games, or new articles). In order to achieve the overall promotion goal, the operating staff will select various channels for promotion (including standard HTML/HTML5 (desktop), iOS, and Android). You are using Alibaba Cloud's Log Service: in order to ascertain the effectiveness of content promotion accurately and in real time, which log collection method should you use, as a developer?

A.

Syslog

B.

Web Tracking

C.

Kafka

D.

Logslash

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