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DBS-C01 · Question #192

A company uses a single-node Amazon RDS for MySQL DB instance for its production database. The DB instance runs in an AWS Region in the United States. A week before a big sales event, a new…

The correct answer is D. Convert the DB instance into a Multi-AZ deployment. Apply the maintenance update. https://aws.amazon.com/premiumsupport/knowledge-center/rds-required-maintenance/

Submitted by manish99· Mar 6, 2026Management and Operations

Question

A company uses a single-node Amazon RDS for MySQL DB instance for its production database. The DB instance runs in an AWS Region in the United States. A week before a big sales event, a new maintenance update is available for the DB instance. The maintenance update is marked as required. The company wants to minimize downtime for the DB instance and asks a database specialist to make the DB instance highly available until the sales event ends. Which solution will meet these requirements?

Options

  • ADefer the maintenance update until the sales event is over.
  • BCreate a read replica with the latest update. Initiate a failover before the sales event.
  • CCreate a read replica with the latest update. Transfer all read-only traffic to the read replica during
  • DConvert the DB instance into a Multi-AZ deployment. Apply the maintenance update.

How the community answered

(33 responses)
  • A
    6% (2)
  • B
    12% (4)
  • C
    3% (1)
  • D
    79% (26)

Explanation

https://aws.amazon.com/premiumsupport/knowledge-center/rds-required-maintenance/

Topics

#RDS MySQL#Multi-AZ#High availability#Database maintenance#Downtime minimization

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