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?
The Amazon S3 bucket that stores the backups is full.
The DB instance is in the STORAGE_FULL state.
The DB instance is not configured for Multi-AZ.
The backup retention period must be 30 days.
Explanations:
Amazon S3 storage for RDS backups is fully managed by AWS, so there is no risk of the S3 bucket being “full.”
If the DB instance is in theSTORAGE_FULLstate, automated backups will not occur.
Multi-AZ configuration is not required for automated backups to function.
The backup retention period does not need to be set to 30 days for backups; any period (e.g., 7 days) will enable automated backups.