AWS Certified Cloud Practitioner (CLF-C02)Cloud Technology and ServicesMedium
A database administrator wants to protect point-in-time copies of an EBS volume so that the volume can be restored in case of accidental data corruption. Which AWS feature should be used to create these point-in-time backups?
- ARDS Multi-AZ
- BAMI replication
- CEBS Snapshots
- DS3 Versioning
Show answer & explanationAnswer & explanation
Correct answer: C. EBS Snapshots
EBS Snapshots are incremental, point-in-time backups of EBS volumes stored in Amazon S3, allowing volumes to be restored to a previous state.
Why the other options are wrong
- A. RDS Multi-AZ provides database failover, not EBS volume backup.
- B. AMI replication copies machine images across regions, not incremental volume backups directly.
- D. S3 Versioning tracks object versions within S3 buckets, not EBS volumes.
EBS Snapshot
An incremental, point-in-time backup of an Amazon EBS volume stored durably in Amazon S3.
- Only changed blocks are saved after the first snapshot
- Can be used to create new volumes or AMIs
- Stored in S3 but not directly accessible as S3 objects
Memory trick: Snapshot = camera click of your volume's current state.