A healthcare provider is planning to migrate its applications to the AWS Cloud. The migration team has decided on the following plans for two of their systems:
- The patient scheduling application's server VMs will be moved to Amazon EC2 without changes, but its backend relational database will be migrated from a self-managed on-premises server to Amazon Aurora to reduce operational overhead without modifying the application's core code.
- The legacy custom document management system will be decommissioned, and its capabilities will be fully replaced by a third-party software-as-a-service (SaaS) solution purchased through AWS Marketplace.
Which of the following migration strategies are represented in this plan? (Select TWO.)
- ReplatformingAnswer
- RepurchasingAnswer
- CRehosting
- DRefactoring
- ERetiring
Answer
The correct strategies are Replatforming and Repurchasing.
The correct answers are Replatforming and Repurchasing. Moving the database from an on-premises self-managed server to a managed service like Amazon Aurora without altering the core application code represents Replatforming. Decommissioning the custom legacy document management system and replacing it with a third-party SaaS product from AWS Marketplace represents Repurchasing.
Step-by-Step Solution
Key Concept
Understand the 6 Rs cloud migration strategies: Rehosting, Replatforming, Refactoring, Repurchasing, Retaining, and Retiring.