AWS Certified SysOps Administrator – Associate (legacy) — Question 351

A user has launched an EC2 instance store backed instance in the US-East-1a zone. The user created AMI #1 and copied it to the Europe region. After that, the user made a few updates to the application running in the US-East-1a zone. The user makes an AMI#2 after the changes. If the user launches a new instance in
Europe from the AMI #1 copy, which of the below mentioned statements is true?

Answer options

• A. The new instance will have the changes made after the AMI copy as AWS just copies the reference of the original AMI during the copying. Thus, the copied AMI will have all the updated data
• B. The new instance will have the changes made after the AMI copy since AWS keeps updating the AMI
• C. It is not possible to copy the instance store backed AMI from one region to another
• D. The new instance in the EU region will not have the changes made after the AMI copy

Correct answer: D

Explanation

An Amazon Machine Image (AMI) is a static, point-in-time snapshot of the instance. Any modifications made to the source instance or a subsequent AMI (like AMI #2) after AMI #1 has been copied will not be reflected in the copied version of AMI #1. To run an instance with the new updates in the Europe region, the user would need to copy AMI #2 to that region.