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

Apex Realty Group is migrating its IT infrastructure to the AWS Cloud. The migration team has decided to move its legacy customer-facing web portal directly to Amazon EC2 instances without modifying any code. Additionally, they plan to migrate their relational database to Amazon Relational Database Service (Amazon RDS) to minimize database administration effort while keeping the application's underlying code unchanged. Which two of the following migration strategies are being utilized by Apex Realty Group?

  1. RehostingAnswer
  2. ReplatformingAnswer
  3. C
    Refactoring / Re-architecting
  4. D
    Repurchasing
  5. E
    Retaining

Answer

Rehosting and Replatforming
Rehosting is correct because moving the legacy customer-facing web portal to Amazon EC2 without code changes is a classic lift-and-shift. Replatforming is correct because moving the database to a managed service like Amazon RDS to reduce management overhead while keeping the core code intact is a lift-tinker-and-shift.

Step-by-Step Solution

1
Analyze the web portal migration
The web portal is moved to Amazon EC2 with zero code changes, which corresponds directly to the Rehosting strategy.
Identifying that no modifications are made to the code indicates a pure lift-and-shift (Rehosting).
2
Analyze the database migration
The database is moved to Amazon RDS to reduce management overhead without changing the core architecture, which corresponds directly to the Replatforming strategy.
Switching from self-managed database infrastructure to a managed service (Amazon RDS) without altering core application logic represents a lift-tinker-and-shift (Replatforming).

Key Concept

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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