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Difficulty: HardUnderstand the benefits of and strategies for migration to the AWS Cloud

An agricultural technology company is planning to migrate its IT portfolio to the AWS Cloud. The migration team has identified two specific workloads for the first phase:

* Workload 1: A weather data analysis tool that runs on standard Linux virtual machines. The company needs to migrate this application to AWS quickly to meet an upcoming data center lease expiration, keeping it exactly as-is with no changes to the application code, database, configuration, or architecture.
* Workload 2: A proprietary soil-sensor data processor. The development team plans to completely rewrite this application from scratch to implement a modern, serverless, microservices-based architecture using AWS Lambda and Amazon DynamoDB.

Which migration strategies should the company select for these workloads? (Select TWO.)

  1. Rehosting for Workload 1Answer
  2. Refactoring for Workload 2Answer
  3. C
    Replatforming for Workload 1
  4. D
    Repurchasing for Workload 2
  5. E
    Retaining for Workload 2

Answer

Rehosting for Workload 1 and Refactoring for Workload 2
The correct strategy for the first workload is Rehosting (lift-and-shift) because the workload must be migrated quickly to meet a deadline without any modifications to the code, configuration, or architecture. The correct strategy for the second workload is Refactoring (re-architecting) because the workload is being completely rewritten to utilize cloud-native features like serverless functions (AWS Lambda) and serverless databases (Amazon DynamoDB).

Step-by-Step Solution

1
Analyze the requirements for Workload 1.
Workload 1 needs to be migrated to AWS quickly with zero changes to code, configuration, or architecture.
This matches the 'Rehosting' (lift-and-shift) migration strategy, where applications are moved to the cloud exactly as-is.
2
Analyze the requirements for Workload 2.
Workload 2 needs to be completely rewritten to adopt a serverless, microservices architecture using AWS Lambda and Amazon DynamoDB.
This matches the 'Refactoring' (re-architecting) strategy, where applications are modified or rewritten to leverage cloud-native features.
3
Identify and eliminate incorrect strategies.
Replatforming is incorrect for Workload 1 because it involves platform optimizations (like moving to managed services), which violates the 'no changes' constraint. Repurchasing is incorrect for Workload 2 because it refers to purchasing a different off-the-shelf product (such as SaaS) instead of custom rewriting. Retaining is incorrect because Workload 2 is actively being migrated and redesigned.
Ensures the correct classification of all migration strategies according to the AWS Cloud Adoption Framework.

Key Concept

AWS Migration Strategies (the 6 Rs)
Estimated Time:2m 0s
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Topics

Understand the benefits of and strategies for migration to the AWS Cloud

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