AWS Certified SysOps Administrator – Associate — Question 397

A SysOps administrator needs to ensure that an Amazon RDS for PostgreSQL DB instance has available backups. The DB instance has automated backups turned on with a backup retention period of 7 days. However, no automated backups for the DB instance have been created in the past month.

What could be the cause of the lack of automated backups?

Answer options

• A. The Amazon S3 bucket that stores the backups is full.
• B. The DB instance is in the STORAGE_FULL state.
• C. The DB instance is not configured for Multi-AZ.
• D. The backup retention period must be 30 days.

Correct answer: B

Explanation

Automated backups in Amazon RDS are suspended if the DB instance enters the STORAGE_FULL state, as the system cannot perform the necessary operations when storage is exhausted. Amazon S3 storage is managed automatically by AWS and is not a limitation for RDS backups. Neither a Multi-AZ deployment nor a 30-day retention period is required to enable automated backups.