AWS Certified SysOps Administrator – Associate (legacy) — Question 35

A recent organizational audit uncovered an existing Amazon RDS database that is not currently configured for high availability. Given the critical nature of this database, it must be configured for high availability as soon as possible.
How can this requirement be met?

Answer options

• A. Switch to an active/passive database pair using the create-db-instance-read-replica with the - -availability-zone flag.
• B. Specify high availability when creating a new RDS instance, and live-migrate the data.
• C. Modify the RDS instance using the console to include the Multi-AZ option.
• D. Use the modify-db-instance command with the - -ha flag.

Correct answer: C

Explanation

The correct answer is C because modifying the RDS instance to include the Multi-AZ option enables automatic failover and enhances availability. Option A does not directly address high availability in the context of RDS, and option B requires creating a new instance, which is not an immediate solution. Option D is incorrect as there is no such flag as --ha for modifying an RDS instance.