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ACA Database Certification Questions and Answers

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Questions # 1:

Which type of the following logs is used to synchronize data between primary and secondary databases in RDS for MySQL?

Options:

Redo log

Rollback log

Binary log

Error log

Answer

Questions # 2:

Which of the following scheduling tools are supported by AnalyticDB for MySQL? (Number of correct answers: 2)

Options:

DMS

Data Works

MaxCompute

QuickBl

Answer

A, B

Questions # 3:

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

Options:

Seconds

Minutes

Hours

Days

Answer

Questions # 4:

Which of the following deployment architectures are supported by Alibaba Cloud ApsaraDB for MongoDB? (Number of correct answers: 3)

Options:

Standalone instance

Primary/secondary instance that consists of two nodes

Replica set instance that consists of three nodes

Sharded cluster instance

Replica set instance that consists of six nodes

Answer

A, C, D

Questions # 5:

You have a client that wants to move from another cloud provider's database service to RDS. Which of these is the best way to move their database to Alibaba Cloud?

Options:

Use DTS (Data Transmission Service)

Make a full physical backup of their database and copy it into OSS

This type of migration isn't possible

Migrate the entire VM hosting the database

Answer

Questions # 6:

You are using DTS to migrate from a MySQL database installed on an ECS instance to a target

database on RDS. In the DTS console, which of these is the correct "Instance Type" for the database?

Options:

ECS-based Databases

Express Connect DB

RDS Instance

ApsaraDB MongoDB

Answer

Explanation

https://www.alibabacloud.com/help/doc-detail/96154.htm?spm=a2c63.p38356.b99.118.59de5d1aWUVErx

Questions # 7:

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

Options:

Use PolarDB-0 that is highly compatible with Oracle.

Use Advanced Database & Application Migration (ADAM) to evaluate the migration project.

Use ApsaraDB for Redis as a cache service to provide acceleration capabilities.

Use Data Transmission Service (DTS) to migrate data.

Answer

A, B, D

Questions # 8:

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?