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

An enterprise is planning to migrate its on-premises workloads to the AWS Cloud. During the discovery phase, the migration team identifies two specific workloads:

1. A legacy system that is no longer used by any business unit and has no operational value.
2. An on-premises customer relationship management (CRM) application that the company wants to replace entirely with a cloud-based Software-as-a-Service (SaaS) platform.

Which of the following migration strategies describe the correct paths for these workloads? (Select TWO.)

  1. Retiring the legacy system that is no longer in useAnswer
  2. B
    Rehosting the CRM application to run on Amazon EC2 instances
  3. Repurchasing the CRM application by moving to a SaaS platformAnswer
  4. D
    Retaining the legacy system on-premises for future cloud deployment
  5. E
    Replatforming the CRM application to reduce management overhead

Answer

The correct strategies are retiring the legacy system that is no longer in use, and repurchasing the CRM application by moving to a SaaS platform.
The correct strategy for the legacy system is retiring it because it has no business value and can be safely shut down. The correct strategy for the CRM application is repurchasing because the company is replacing its existing on-premises software with a new cloud-native Software-as-a-Service (SaaS) product.

Step-by-Step Solution

1
Analyze the requirement for the first workload (obsolete legacy system).
Identify that because the system has no operational value and is no longer used, it should be turned off or decommissioned. The migration strategy for decommissioning workloads is Retiring.
Retiring helps reduce costs and focus migration effort only on active and valuable workloads.
2
Analyze the requirement for the second workload (CRM application to be replaced by SaaS).
Identify that replacing an on-premises product with a different product or platform, specifically a Software-as-a-Service (SaaS) model, represents the Repurchasing strategy.
Repurchasing, or 'drop-and-shop', refers to switching to a different product, commonly a SaaS platform.

Key Concept

AWS Cloud Migration Strategies (6 Rs)
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Topics

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

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