ACA-Database 試験問題を無料オンラインアクセス

Which of the following is the most efficient backup in ApsaraDB for MongoDB?

• A.Snapshot backup
• B.Logical backup
• C.Physical backup
• D.Full backup

Which of the following are features supported by Alibaba Cloud RDS for MySQL? (The number of

• A.Local Snapshot Backup-> Snapshot Backup is Cloud disk instance. Cross-region backup is Local disk instance.
• B.3)
• C.Multi-Zone Deployment ->You can select the Single-zone Deployment or Multi-zone Development method.
  https://www.alibabacloud.com/help/doc-detail/26092.htm?spm=a2c63.p38356.b99.18.118b4437l50tDl
• D.Computing nodes and Storage totally seperated-> In the Basic Edition, your database system consists of only one primary RDS instance, and computing is separated from storage. This edition is cost-effective.
  https://www.alibabacloud.com/help/doc-detail/48980.html?spm=a2c5t.11065259.1996646101.searchclick
• E.ACD
• F.Read-Write Splitting ->
  https://www.alibabacloud.com/help/doc-detail/96047.htm?spm=a2c63.p38356.b99.57.500dc3c6Kt0QLs

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?

• A.Use DTS (Data Transmission Service)
• B.This type of migration isn't possible
• C.Migrate the entire VM hosting the database
• D.Make a full physical backup of their database and copy it into OSS

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

• A.10
• B.15
• C.1
• D.5

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.Instances can be migrated. You can manually migrate instances to idle hosts.
• C.ApsaraDB for MyBase allows you to distribute different types of instances at a time.
• D.Isolated hosts are used. A host runs only your instances and does not run instances of other users.