SAP-C02 Continuous Improvement for Existing Solutions Practice Question
A company has a legacy monolithic application running on a single EC2 instance. The application stores customer data in an attached EBS volume. The company wants to modernize the application to improve scalability and availability. Which approach should a solutions architect recommend?
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
✓
Refactor the application into microservices running on Amazon ECS with data stored in Amazon S3.
Migrating to a containerized, stateless application decouples storage and allows scaling. Option A is wrong because a larger instance still has a single point of failure. Option B is wrong because Multi-Attach EBS volumes have limited support and multiple instances writing to the same volume can cause data corruption. Option C is wrong because RDS is for databases, not for application data stored in files.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use a larger EC2 instance with enhanced networking.
Why it's wrong here
Larger instances still have a single point of failure and limited scalability.
- ✗
Configure multiple EC2 instances to share the same EBS volume using Multi-Attach.
Why it's wrong here
Multi-Attach supports limited scenarios and risks data corruption.
- ✗
Replace the EBS volume with an Aurora RDS database.
Why it's wrong here
RDS is for relational databases, not for general file storage.
- ✓
Refactor the application into microservices running on Amazon ECS with data stored in Amazon S3.
Why this is correct
Containers and S3 provide scalability, availability, and stateless design.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SAP-C02 exam.