- A
Amazon API Gateway
Why wrong: API Gateway is for creating RESTful APIs, not a service mesh.
- B
AWS App Mesh
App Mesh is a service mesh that provides traffic management, observability, and security.
- C
AWS Transit Gateway
Why wrong: Transit Gateway connects VPCs and on-premises networks, not service-to-service communication.
- D
AWS Cloud Map
Why wrong: Cloud Map provides service discovery, not a full service mesh.
Question 447 of 1,746
SAP-C02 Design for New Solutions Practice Question
This SAP-C02 practice question tests your understanding of design for new solutions. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is designing a new microservices architecture on AWS. The company wants to use a service mesh to manage service-to-service communication, observability, and security. Which AWS service should the company use?
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 App Mesh
AWS App Mesh is a service mesh that provides application-level networking to manage service-to-service communication, observability (via metrics, logs, and traces), and security (via mTLS and fine-grained access policies) for microservices. It uses the Envoy proxy as a sidecar to intercept traffic, enabling features like traffic splitting, retries, and circuit breaking without modifying application code.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 API Gateway
Why it's wrong here
API Gateway is for creating RESTful APIs, not a service mesh.
- ✓
AWS App Mesh
Why this is correct
App Mesh is a service mesh that provides traffic management, observability, and security.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Transit Gateway
Why it's wrong here
Transit Gateway connects VPCs and on-premises networks, not service-to-service communication.
- ✗
AWS Cloud Map
Why it's wrong here
Cloud Map provides service discovery, not a full service mesh.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse a service mesh (App Mesh) with an API gateway (API Gateway), but API Gateway is designed for external-facing API management, not for internal service-to-service traffic control and observability within a microservices mesh.
Detailed technical explanation
How to think about this question
Under the hood, App Mesh deploys Envoy proxies as sidecar containers in Amazon ECS tasks or Kubernetes pods, and these proxies enforce traffic policies defined in the mesh control plane using xDS APIs (e.g., LDS, RDS, CDS). A subtle behavior is that App Mesh can integrate with AWS X-Ray for distributed tracing and with AWS CloudWatch for metrics, but it does not automatically encrypt traffic; mTLS requires integration with a certificate authority like AWS Certificate Manager or a third-party solution. In a real-world scenario, a company can use App Mesh to gradually shift traffic between service versions (e.g., 10% canary) by configuring weighted routes in the virtual router.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Design for New Solutions — This question tests Design for New Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS App Mesh — AWS App Mesh is a service mesh that provides application-level networking to manage service-to-service communication, observability (via metrics, logs, and traces), and security (via mTLS and fine-grained access policies) for microservices. It uses the Envoy proxy as a sidecar to intercept traffic, enabling features like traffic splitting, retries, and circuit breaking without modifying application code.
What should I do if I get this SAP-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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