ACA-Database Exam Training Practice Tests (Alibaba Cloud ACA Database Certification)]

Question 1

lf Oracle databases need to be migrated to Alibaba Cloud, which of the following product solutions :an be recommended? (Number of correct answers: 3)

A. Use Data Transmission Service (DTS) to migrate data. B. Use PolarDB-0 that is highly compatible with Oracle. C. Use ApsaraDB for Redis as a cache service to provide acceleration capabilities. D. Use Advanced Database & Application Migration (ADAM) to evaluate the migration project.

Correct Answer: A,B,D

Question 2

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

A. Elastic Mode B. Basic Edition C. S series D. C series

Correct Answer: A

Question 3

Which of the following is not a relational database?

A. Oracle B. DB2 C. Teradata D. Redis

Correct Answer: D

Question 4

Which of the following statements about Data Transmission Service (DTS) migration scenarios is NOT true?

A. DTS can migrate data from several source databases to one destination database, for example, A > C and B > C. B. DTS can migrate data from one source database to one destination database, for example, A > B. C. DTS can migrate data in a circular way, for example, A > B > C > A. D. DTS can migrate data from one source database to several destination databases, for example, A > B and A > C.

Correct Answer: C

Question 5

Which of the following is the core benefit of ApsaraDB for Redis Enhanced Edition (Tair)?

A. Makes large amounts of data easier to process. B. Makes data secure and independently managed. C. Makes it easy to do business anywhere. D. Makes data accessible online and in real time.

Correct Answer: D

Question 6

Which of the followings is NOT a correct way to connect to PolarDB?

A. Use PolarDB console to log into a cluster B. Use DMS to connect to a cluster C. Use the command line like 'mysql' to connect to a cluster D. Use a client like HeidiSQL to connect to a cluster

Correct Answer: A

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Question 7

Which of the following is the lowest recovery point objective (RPO) for Database Backup Service?

A. Seconds B. Hours C. Minutes D. Days

Correct Answer: C

Question 8

Which of the following is NOT true, regarding DTS (Database Transmission Service)?

A. DTS works for database both on and off Alibaba Cloud B. DTS cannot be used for incremental database synchronization C. DTS supports multiple database engines D. DTS can migrate both data and table schema

Correct Answer: B

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Question 9

Which of the following statements is NOT correct about PolarDB?

A. An ApsaraDB for PolarDB cluster can also be scaled out to a maximum of 16 nodes, and provide up to 6 times of performance improvement traditional MySQL clusters at a 30% to 50% cost reduction B. ApsaraDB for PolarDB is designed to handle large amounts of sequential queries C. Each ApsaraDB for PolarDB cluster supports up to 100 TB of storage space and can handle up to one million queries per second (QPS) D. ApsaraDB for PolarDB is a cloud-native relational database service that is compatible with the MySQL, PostgreSQL, and Oracle engines E. ApsaraDB for PolarDB can scale clusters within a few minutes, recover from failures within a few seconds, and guarantee data consistency

Correct Answer: B

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