AWS Certified Developer – Associate — Question 431

A developer wants to use AWS Elastic Beanstalk to test a new version of on application in a test environment.
Which deployment method offers the FASTEST deployment?

Answer options

• A. Immutable
• B. Rolling
• C. Rolling with additional batch
• D. All at once

Correct answer: D

Explanation

The 'All at once' deployment method is the fastest option because it deploys the new application version to all instances simultaneously, resulting in a short period of downtime which is acceptable in a test environment. Other methods like Rolling, Rolling with additional batch, and Immutable avoid downtime by updating instances in waves or creating new ones, but this makes the deployment process take significantly longer.