Exam H13-821_V3.0-ENU Topic 1 Question 287 Discussion

Actual exam question for Huawei's H13-821_V3.0-ENU exam
Question #: 287
Topic #: 1

HUAWEI CLOUD DRS provides various functions such as migration, synchronization, disaster recovery and subscription.
Which of the following descriptions about DRS service features or application scenarios are correct? (Multiple choice)

A. Synchronization, focusing on tables and data, and meeting the needs of a variety of flexibility, such as many-to-one, one-to-many, dynamic addition and deletion of synchronization tables, synchronization of data between different table names, etc. B. Disaster recovery: Data disaster recovery supports the disaster recovery architecture of three centers in two places and four centers in two places. Unilateral disaster recovery can use the functions of upgrading the master and downgrading the standby in the disaster recovery scenario to achieve the effect of master-standby switchover in different places C. Migration: Through incremental migration technology, database migration can be completed during business operation without affecting business D. Subscription: The main application scenario is kefka subscription GaussDB incremental data scenario

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