SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is migrating a legacy e-commerce platform to AWS. The platform includes a MySQL database that experiences heavy read traffic. The company wants to improve performance and reduce latency for read operations. Which TWO actions should the solutions architect take?
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
✓
Add read replicas to the RDS MySQL database.
Adding read replicas offloads read traffic from the primary database, improving performance. Implementing Amazon ElastiCache for caching reduces database load for frequently accessed data. Multi-AZ is for high availability, not read performance. Provisioned IOPS improves write performance. Sharding adds complexity and may not be necessary.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable Multi-AZ on the RDS instance.
Why it's wrong here
Multi-AZ provides high availability, not read performance improvement.
- ✗
Shard the database across multiple RDS instances.
Why it's wrong here
Sharding adds complexity and may require application changes.
- ✗
Upgrade to Provisioned IOPS for the database.
Why it's wrong here
Provisioned IOPS improves disk performance, but is not specifically targeted at read-heavy workloads.
- ✓
Add read replicas to the RDS MySQL database.
Why this is correct
Read replicas reduce load on the primary and improve read latency.
- ✓
Use Amazon ElastiCache in front of the database.
Why this is correct
Caching reduces database reads for frequently accessed data.
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