SAP-C02 Continuous Improvement for Existing Solutions Practice Question
A company is migrating a monolithic application to microservices on Amazon ECS. They want to implement a service mesh for observability and traffic management. Which THREE AWS services should they consider?
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
✓
AWS X-Ray
Options B, C, and D are correct. AWS App Mesh is a service mesh that provides observability and traffic management. AWS X-Ray provides tracing for microservices. Amazon CloudWatch provides monitoring and logs. Option A is wrong because Amazon Route 53 is DNS, not a service mesh. Option E is wrong because AWS Step Functions is for orchestrating workflows, not service mesh.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon Route 53
Why it's wrong here
Route 53 provides DNS resolution and health-check-based routing, not the sidecar proxy layer that intercepts service-to-service traffic for mesh telemetry. It is tempting because DNS-based service discovery underpins microservice communication, and it would be correct for public endpoint failover or latency routing.
- ✓
AWS X-Ray
Why this is correct
AWS X-Ray provides distributed tracing across ECS microservices, capturing request paths and latency between services to satisfy the observability requirement. It integrates natively with ECS tasks and the X-Ray daemon, giving end-to-end visibility that a service mesh alone would not deliver for troubleshooting inter-service calls.
- ✓
Amazon CloudWatch
Why this is correct
Amazon CloudWatch supplies the observability layer the mesh requires, ingesting ECS task and container metrics, logs and traces via the CloudWatch agent and Container Insights. It satisfies the stem's observability constraint by correlating service-level telemetry across microservices, complementing the mesh's traffic management rather than replacing it.
- ✓
AWS App Mesh
Why this is correct
AWS App Mesh provides a managed Envoy-based service mesh that integrates natively with Amazon ECS, satisfying the requirement for service-to-service observability and traffic routing without replacing the existing orchestrator. Its virtual nodes and virtual services deliver consistent traffic control and telemetry across microservices, which third-party meshes would require additional operational overhead to achieve on ECS.
- ✗
AWS Step Functions
Why it's wrong here
Step Functions orchestrates long-running workflows as state machines; it does not deploy a data-plane proxy alongside each ECS task to capture request metrics. It is tempting because it coordinates distributed components, and it would be correct for saga-style transaction orchestration across microservices.
Go deeper
Related to this question
About these practice questions
One of 984 original SAP-C02 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
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.