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

（A）Data directory

（B）Data visualization

（C）Data quality

（D）Data lineage

（E）Data service

（A）Single Instance

（B）Shared Nothing

（C）Dedicated

（D）Shared Everything

（A）Data migration

（B）Data backup

（C）Data synchronization

（D）Change tracking

（A）Seconds

（B）Days

（C）Minutes

（D）Hours

（A）Millisecond-level latency in physical replication

（B）Large storage space

（C）Elastic scaling within minutes

（D）When you add a read-only node in an ApsaraDB for PolarDB cluster, you only need to pay for computing resources

（E）locked backup

（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 in a circular way, for example, A > B > C > A.

（C）DTS can migrate data from one source database to one destination database, for example, A > B.

（D）DTS can migrate data from one source database to several destination databases, for example, A > B and A > C.

（A）Interactive analysis

（B）Stream or micro-batch processing

（C）Online transaction processing

（D）Batch processing

（A）False

（B）True