AWS Certified SysOps Administrator – Associate (legacy) — Question 270

A user is launching an EC2 instance in the US East region. Which of the below mentioned options is recommended by AWS with respect to the selection of the availability zone?

Answer options

• A. Always select the US-East-1-a zone for HA
• B. Do not select the AZ; instead let AWS select the AZ
• C. The user can never select the availability zone while launching an instance
• D. Always select the AZ while launching an instance

Correct answer: B

Explanation

AWS recommends letting the platform automatically select the Availability Zone during EC2 deployment, as this allows AWS to balance resources and select the healthiest zone with the best capacity. While users do have the option to manually select a specific AZ, it is not recommended as a default practice because it can lead to uneven resource distribution. Options A, C, and D are incorrect because users can select an AZ if needed, but doing so manually for every launch is not the AWS-recommended best practice.