SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is modernizing a legacy application by breaking it into microservices. The application uses a shared MySQL database. The team wants to refactor the database to use Amazon DynamoDB for better scalability. Which migration strategy should be used?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the Strangler Fig pattern to incrementally migrate data to DynamoDB
The Strangler Fig pattern is the correct migration strategy because it allows for incremental and iterative migration of data and business logic from the legacy MySQL database to Amazon DynamoDB without a full cutover. This approach minimizes risk and enables the team to gradually refactor the application while maintaining continuous operation. Option A (rehost to Amazon RDS) would still use a relational database and not achieve the goal of moving to DynamoDB. Option C (replatform to Amazon Aurora) also retains a relational model. Option D (retire the existing database and switch to DynamoDB) is risky as it requires a complete cutover without incremental transition.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Rehost the database to Amazon RDS
Why it's wrong here
Does not achieve DynamoDB target.
- ✓
Use the Strangler Fig pattern to incrementally migrate data to DynamoDB
Why this is correct
Allows gradual transition with minimal risk.
- ✗
Replatform the database to Amazon Aurora
Why it's wrong here
Still relational, not DynamoDB.
- ✗
Retire the existing database and switch to DynamoDB
Why it's wrong here
Risky, no rollback path.
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