AWS Certified SysOps Administrator – Associate (legacy) — Question 276

A sys admin is trying to understand EBS snapshots. Which of the below mentioned statements will not be useful to the admin to understand the concepts about a snapshot?

Answer options

• A. The snapshot is synchronous
• B. It is recommended to stop the instance before taking a snapshot for consistent data
• C. The snapshot is incremental
• D. The snapshot captures the data that has been written to the hard disk when the snapshot command was executed

Correct answer: A

Explanation

EBS snapshots are asynchronous, meaning the creation process starts immediately in the background and allows the volume to be used without waiting for the snapshot to complete, making statement A incorrect. To ensure absolute data consistency, stopping the instance or unmounting the volume (Option B) is recommended. Options C and D are correct statements because EBS snapshots are incremental and capture the block-level data written to the disk at the time of execution.