When thinking of AWS Elastic Beanstalk, the ‘Swap Environment URLs’ feature most directly aids in what?

A.
Immutable Rolling Deployments

B.
Mutable Rolling Deployments

C.
Canary Deployments

D.
Blue-Green Deployments

Explanation:
Explanation/Reference:
Simply upload the new version of your application and let your deployment service (AWS Elastic Beanstalk, AWS CloudFormation, or AWS OpsWorks) deploy a new version (green). To cut over to the new version, you simply replace the ELB URLs in your DNS records. Elastic Beanstalk has a Swap Environment URLs feature to facilitate a simpler cutover process. https://d0.awsstatic.com/whitepapers/overview-of-deployment-options-on-aws.pdf