ACA-Database無料問題集「Alibaba Cloud ACA Database Certification」

質問 1

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

（A）5

（B）1

（C）15

（D）10

正解：C 解答を投票する

質問 2

Which of the following features is NOT supported by Data Transmission Service (DTS)?

（A）Data migration

（B）Data backup

（C）Data synchronization

（D）Change tracking

正解：D 解答を投票する

質問 3

Which of the following types of data that is stored in PostgreSQL databases can support the one-to-many data model? (Number of correct answers: 3)

（A）JSONB

（B）Array

（C）Cube

（D）JSON

（E）String

（F）GIS

（G）Range

正解：B、D、E 解答を投票する

質問 4

Which of these are NOT good use cases for DTS (Data Transmission Service)? (Number of correct answers: 2)

（A）Undoing changes made to a database by mistake

（B）Full database synchronization for database migration

（C）Incremental synchronization for disaster recovery

（D）Saving database logs

正解：A、D 解答を投票する

質問 5

Which of the following is NOT supported by schema migration in Advanced Database & Application Migration (ADAM)?

（A）Re-migrate the failed schemas

（B）Migrate the schemas that require a manual revision but have not been revised

（C）Re-migrate all schemas

（D）Customize schema migration

正解：B 解答を投票する

質問 6

Which of the following is not a component of the PolarDB-0 architecture in Apsara Stack?

（A）FC Switch

（B）RDMA

（C）SAN

（D）Proxy

正解：C 解答を投票する

質問 7

You need to migrate a database that has a storage capacity of 50 GB to the cloud and can tolerate a service downtime of half an hour. In this case, which of the following migration methods is the optimal choice to migrate data to the cloud in terms of stability and availability?

（A）Logical migration tools

（B）Incremental backup only

（C）Full backup and incremental backup

（D）Full backup only

正解：A 解答を投票する

質問 8

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

（A）DAS

（B）DBS

（C）DG

（D）DTS

（E）DMS

正解：E 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

ACA-Database 無料問題集「Alibaba Cloud ACA Database Certification」

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