AWS Certified SysOps Administrator – Associate (legacy) — Question 380

A user has created an EBS volume of 10 GB and attached it to a running instance. The user is trying to access EBS for first time. Which of the below mentioned options is the correct statement with respect to a first time EBS access?

Answer options

• A. The volume will show a size of 8 GB
• B. The volume will show a loss of the IOPS performance the first time
• C. The volume will be blank
• D. If the EBS is mounted it will ask the user to create a file system

Correct answer: B

Explanation

When an EBS volume (particularly one restored from a snapshot) is accessed for the first time, it can experience a temporary reduction in IOPS performance because the blocks need to be pulled from Amazon S3 and written to the volume. This degradation occurs during the initialization phase, after which the volume performs at its full provisioned rate. The capacity of the volume does not decrease, and mounting the volume does not automatically trigger a filesystem creation prompt.