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

Zenith Retail is planning the migration of its application portfolio to the AWS Cloud. During the discovery phase, the team identifies a legacy mainframe application that is highly customized and runs critical accounting processes. Due to its complexity and the lack of an immediate business case for migration, the company decides to keep this application running in their on-premises data center for now. Which cloud migration strategy is Zenith Retail using for this mainframe application?

  1. RetainingAnswer
  2. B
    Rehosting
  3. C
    Replatforming
  4. D
    Retiring

Answer

Retaining
The correct answer is Retaining. This strategy involves keeping applications in their current on-premises environment instead of migrating them to the cloud. This is typically chosen for legacy workloads that are highly customized, complex, or lack a business case for immediate migration.

Step-by-Step Solution

1
Analyze the scenario to determine the fate of the legacy mainframe application.
The application is highly customized, runs critical processes, and Zenith Retail decides to keep it running in their on-premises data center for now.
Understanding the target action (keeping the application on-premises) is key to selecting the correct migration strategy.
2
Match the decision of keeping the application on-premises to the correct AWS 6 Rs migration strategy.
This corresponds to the Retaining strategy.
Retaining is defined as keeping applications in their source environment, often due to complexity or pending deprecation/migration plans.

Key Concept

AWS Cloud Migration Strategies (6 Rs)
Estimated Time:45s
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Topics

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

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