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Question 1
What are the 6 R's of cloud migration strategies?
Answer: Rehost, Replatform, Repurchase, Refactor, Retire, and Retain. These represent the six common approaches organizations use when migrating applications to the cloud.
Question 2
Which of the 6 R's is known as 'lift and shift' and involves moving an application to the cloud with no modifications?
Answer: Rehost. It moves applications to the cloud as-is, without making any changes to the application architecture.
Question 3
Which migration strategy is sometimes called 'lift, tinker, and shift' because it involves making a few cloud optimizations without changing core architecture?
Answer: Replatform. It makes minor optimizations to gain cloud benefits, such as migrating a database to Amazon RDS, without changing the overall application architecture.
Question 4
Which migration strategy involves moving to a different product, such as abandoning a legacy on-premises CRM for Salesforce?
Answer: Repurchase. It involves dropping an existing application and replacing it with a cloud-native SaaS product.
Question 5
Which of the 6 R's involves re-architecting an application from the ground up to fully leverage cloud-native features, and is the most expensive strategy?
Answer: Refactor (also called Re-architect). It involves redesigning how an application is built using cloud-native capabilities, typically driven by a strong business need for features or scale.