Question 1

What are the 6 R's of cloud migration strategies?

Accepted 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?

Accepted 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?

Accepted 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?

Accepted 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?

Accepted 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.

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