AWS DevOps Engineer - Professional

By Amazon · Question Mode

QuestionQ7

Resilient Cloud Solutions

A company uses AWS Database Migration Service (AWS DMS) to replicate data from a source database in a data center to a target Amazon Aurora PostgreSQL database. The company has created a DMS replication task with change data capture (CDC).

The replication instance is occasionally interrupted, affecting critical functionality. The company must increase the resiliency of the replication instance and receive notifications when interruptions occur.

Which solution meets these requirements with the LEAST operational overhead?

Explanation

AWS DMS Multi-AZ automatically maintains a synchronous standby replication instance in a separate Availability Zone. If the primary instance fails or becomes unresponsive, the standby resumes running tasks with minimal interruption. Amazon CloudWatch can monitor DMS replication task and host metrics, and Amazon SNS can deliver email notifications from alarms. This supplies managed failover and alerting without manually creating replacement tasks or operating a cross-Region standby.

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