AWS Certified Developer Associate Practice Test 3

Correct answer - "rolling" : Deploys the new version in batches. Each batch is taken out of service during the deployment phase, reducing your environment's capacity by the number of instances in a batch. The cost remains the same as the number of EC2 instances does not increase

Incorrect:

"immutable" - Deploys the new version to a fresh group of instances

"all at once" - Deploys the new version to all instances simultaneously. All instances in your environment are out of service for a short time while the deployment occurs.

"rolling with additional batches" - Deploys the new version in batches, but first launch a new batch of instances to ensure full capacity during the deployment process. This increases cost as you're creating extra instances during the deployment.

"blue/green" - Incurs charges because deploys a new version to a separate environment, and then swaps CNAMEs of the two environments to redirect traffic to the new version instantly

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