Examkin

Question

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

A financial institution is migrating its retail banking platform to AWS. During the portfolio discovery phase, the migration team identifies a proprietary mainframe ledger application that has strict hardware dependencies and cannot be modified or easily migrated. The team decides to keep this mainframe ledger running in their on-premises data center for the foreseeable future, while establishing a dedicated network connection to integrate it with the newly migrated web frontend on AWS.

Which of the following migration strategies is the institution applying to the mainframe ledger application?

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

Answer

Retaining
The correct strategy is Retaining. Retaining (also known as re-visit) involves keeping applications in their source environment (on-premises) during a migration. This is common for workloads with major hardware/software dependencies that cannot run in the cloud, or applications that need to be revisited later. The mainframe ledger is being kept on-premises for these reasons.

Step-by-Step Solution

1
Analyze the migration scenario and identify the target workload being evaluated.
The target workload is a legacy mainframe ledger application with strict hardware dependencies.
This establishes which component's migration strategy is being questioned.
2
Determine the action taken by the IT team regarding the ledger application's deployment location.
The team decides to keep the ledger running on-premises rather than moving it to AWS.
Understanding where the application resides post-migration narrows down the 6 Rs strategies.
3
Map this decision to one of the AWS 6 Rs migration strategies.
Keeping an application on-premises because of dependency constraints or lack of readiness is defined as the Retaining strategy.
Retaining is chosen when components must remain in the source environment while other parts of the portfolio migrate.

Key Concept

AWS Cloud Migration Strategies (6 Rs) - Retaining
Rate this question

Topics

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

More questions from this topic