ACA-Database by Alibaba Cloud Actual Free Exam Questions And Answers

Question 1

What is the maximum number of read-only nodes in a PolarDB cluster?

A. 15

B. 10

C. 5

D. 1

Discussion 0

Correct Answer: A Vote an answer

Question 2

Which of the following are NOT true, regarding DTS (Data Transmission Service)? (Number of correct answers: 2)

A. The source and destination database must both have a database user which DTS can use

B. If the source database is not on Alibaba Cloud, it must be Internet accessible so that DTS can connect to it

C. The source and destination database must use the same database engine

D. DTS is designed for file synchronization

Discussion 0

Correct Answer: C,D Vote an answer

Question 3

You can purchase more read-only nodes after you have created a cluster. If the primary node fails, the system automatically promotes the read-only node with the highest failover priority to become the new primary node while restoring the faulty node.

A. False

B. True

Discussion 0

Correct Answer: B Vote an answer

Explanation: Only visible for Fast2test members. You can sign-up / login (it's free).

Question 4

When a backup file of core sensitive data is downloaded, business systems must be protected against data breaches. Which of the following capabilities must be enabled to ensure data security?

A. Virtual private cloud (VPC)

B. Secure Sockets Layer (SSL) encryption

C. Transparent Data Encryption (TDE)

D. SOL audit

Discussion 0

Correct Answer: B Vote an answer

Question 5

Which of the following is not a relational database?

A. Redis

B. DB2

C. Oracle

D. Teradata

Discussion 0

Correct Answer: A Vote an answer

Question 6

How can ApsaraDB for MyBase solve problems in database security and performance interferences in the multi-tenant scenario?

A. ApsaraDB for MyBase supports resource over commitment.

B. Isolated hosts are used. A host runs only your instances and does not run instances of other users.

C. Instances can be migrated. You can manually migrate instances to idle hosts.

D. ApsaraDB for MyBase allows you to distribute different types of instances at a time.

Discussion 0

Correct Answer: B Vote an answer

Question 7

Which of the following is the wrong statement about PolarDB design architecture?

A. Read/write splitting is enabled for PolarDB clusters by default, providing transparent, highly available, and self-adaptive load balancing for your database

B. High speed network connection is enabled between the DB server and the chunk server, and data are transferred using the Remote Direct Memory Access (RDMA) protocol

C. A PolarDB cluster contains one primary instance and up to 15 read-only instances

D. PolarDB consolidate compute processes and storage processes in one box, allowing the database capacity to scale up and down to meet your application needs in Alibaba Cloud

Discussion 0

Correct Answer: D Vote an answer

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Question 8

Which of the following specifications of AnalyticDB supports tiered storage of cold and hot data?

A. Elastic Mode

B. Basic Edition

C. C series

D. S series

Discussion 0

Correct Answer: A Vote an answer

Question 9

If you have a development team with several developers working on cloud databases, which product is recommended to use for development collaboration?

Discussion 0

Correct Answer: A Vote an answer

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Alibaba Cloud ACA Database Certification - ACA-Database Exam Practice Test

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