AWS Certified SysOps Administrator – Associate (legacy) — Question 549

A SysOps Administrator is notified that an automated failover of an Amazon RDS database has occurred.
What are possible causes for this? (Choose two.)

Answer options

• A. A read contention on the database.
• B. A storage failure on the primary database.
• C. A write contention on the database.
• D. Database corruption errors.
• E. The database instance type was changed.

Correct answer: B, D

Explanation

Amazon RDS Multi-AZ deployments automatically trigger a failover to the standby replica during critical infrastructure failures, such as primary storage failure or database corruption. Read and write contentions are performance issues that do not initiate a failover, while changing the database instance type is a planned manual modification rather than an unexpected automated failover cause.