Explanation:
Amazon RDS automated backups may fail to occur if the DB instance is in a state that prevents it, such as STORAGE_FULL. If the instance has no remaining disk space, it cannot perform the necessary operations to create a backup. S3 bucket capacity (Option A) is managed by AWS and is effectively unlimited for RDS backups. Multi-AZ (Option C) is not a requirement for automated backups. A 7-day retention period (Option D) is valid and would still result in backups being created.
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Question 17: 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?
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.
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