What should the database specialist do to align to the high availability and disaster recovery requirements?

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In: DBS-C01
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A database specialist is responsible for designing a highly available solution for online transaction processing (OLTP) using Amazon RDS for MySQL production databases.Disaster recovery requirements include a cross-Region deployment along with an RPO of 5 minutes and RTO of 30 minutes.

What should the database specialist do to align to the high availability and disaster recovery requirements?

Use a Multi-AZ deployment in each Region.

Use read replica deployments in all Availability Zones of the secondary Region.

Use Multi-AZ and read replica deployments within a Region.

Use Multi-AZ and deploy a read replica in a secondary Region.

Explanations:

Multi-AZ deployment in each Region provides high availability within a single Region but does not meet the requirement for cross-Region disaster recovery and RPO/RTO.

Read replica deployments in all Availability Zones of the secondary Region do not ensure automatic failover or meet RPO/RTO requirements for disaster recovery.

Multi-AZ and read replica deployments within a Region do not provide cross-Region replication, which is necessary for disaster recovery across Regions.

Multi-AZ and read replica deployments in a secondary Region meet the cross-Region disaster recovery requirements, ensuring high availability and fast failover for RPO/RTO.

2026-04-04

2 Comments

  1. Catherine
    Author

    I evaluate that the answer is:
    Use Multi-AZ and deploy a read replica in a secondary Region.

  2. Gregory
    Author

    As far as I can tell, the answer is:
    Use Multi-AZ and deploy a read replica in a secondary Region.

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