A company is evaluating their application portfolio for cloud migration. They have a legacy mainframe application, a commercial off-the-shelf (COTS) HR application, and a custom-built stateless web application. They want to apply the '7 Rs' migration strategies. Which THREE mappings are most appropriate? (Select THREE)

Answer options:

Rehost the mainframe application to Amazon EC2.

Repurchase the COTS HR application by moving to a SaaS HR provider.

Retain the stateless web application on-premises.

Refactor the mainframe application using AWS Mainframe Modernization.

Relocate the COTS application using VMware Cloud on AWS.

Replatform the stateless web application to AWS Elastic Beanstalk or containers.

Retire the stateless web application.

How to approach this question

Match the workload type to the most logical migration strategy (7 Rs).

Full Answer

Repurchasing (SaaS) is best for standard COTS apps. Mainframes require Refactoring/Replatforming via AWS Mainframe Modernization. Stateless web apps are easily Replatformed to containers or PaaS like Elastic Beanstalk.

Common mistakes

Thinking mainframes can be Rehosted (lift-and-shift) to standard EC2.

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