SAP-C02 Design for New Solutions Practice Question
A company is designing a new microservices architecture that requires service discovery and API management. Which THREE services can be used together to achieve this? (Choose THREE.)
⚠ Common exam trap
It's easy for candidates to confuse Amazon Route 53's DNS-based service discovery with the full service registry and API management capabilities required, or they mistakenly think VPC Lattice can replace both API Gateway and Cloud Map, when in fact VPC Lattice focuses on network-layer connectivity and does not provide API management features like authentication, throttling, or request transformation.
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
✓
Amazon API Gateway
Amazon API Gateway (B) is correct because it provides a fully managed API management layer that handles API creation, publishing, monitoring, and security, enabling microservices to expose RESTful or WebSocket APIs. Application Load Balancer (C) is correct as it can distribute incoming traffic across multiple microservice targets (e.g., ECS tasks, Lambda functions) and supports path-based routing, which is essential for service discovery and traffic management. AWS Cloud Map (E) is correct because it offers a service registry that allows microservices to dynamically discover each other by name, using DNS or HTTP API calls, and integrates with health checks to ensure only healthy endpoints are returned.
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 is DNS, not service discovery.
- ✓
Amazon API Gateway
Why this is correct
API Gateway creates and manages APIs.
- ✓
Application Load Balancer
Why this is correct
ALB can route traffic to microservices.
- ✗
Amazon VPC Lattice
Why it's wrong here
VPC Lattice is for service connectivity, not API management.
- ✓
AWS Cloud Map
Why this is correct
Cloud Map provides service discovery for microservices.
Visual reference
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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