AWS Certified SysOps Administrator – Associate (legacy) — Question 277

A user has launched two EBS backed EC2 instances in the US-East-1a region. The user wants to change the zone of one of the instances. How can the user change it?

Answer options

• A. Stop one of the instances and change the availability zone
• B. The zone can only be modified using the AWS CLI
• C. From the AWS EC2 console, select the Actions - > Change zones and specify new zone
• D. Create an AMI of the running instance and launch the instance in a separate AZ

Correct answer: D

Explanation

An EC2 instance is tied to the Availability Zone (AZ) in which it was launched, and its AZ cannot be changed directly. To move it, you must create an Amazon Machine Image (AMI) of the instance and then launch a new instance from that AMI in the target AZ. Direct modification of the AZ is not supported through either the AWS EC2 console or the AWS CLI.