Cloud Map is a service-discovery tool. It keeps an up-to-date registry of your application’s services and their locations, so components can find and connect to each other dynamically as they scale.
The tell
In microservices, backend instances come and go. Cloud Map lets services look up healthy endpoints by name instead of hard-coding IPs. The tell is “service discovery” for dynamic microservices. It underpins ECS service discovery.
Test yourself
A microservices application needs its components to dynamically discover and connect to healthy instances of other services as they scale up and down. Which service?
- AWS Cloud Map
- Amazon Route 53 simple routing
- AWS Config
- Elastic IP addresses
👉 Click to reveal the answer & explanation
Correct answer: A. Cloud Map provides service discovery, maintaining a registry of services and healthy endpoints for dynamic lookup. Plain Route 53 routing (B) isn’t dynamic service discovery; Config (C) tracks configuration; Elastic IPs (D) are static addresses.
Related topics
ECS vs EKS vs Fargate · Amazon Route 53 · Amazon ECS
Ready to pass the AWS Solutions Architect Associate (SAA-C03)?
Stop guessing whether you’re ready. Our full-length, exam-realistic practice exams put you through the exact question style you’ll face — with a detailed explanation behind every answer, so you learn why, not just what.
- ✓ 6 full-length practice exams
- ✓ A detailed explanation for every single question
- ✓ Realistic, scenario-based questions — not memory dumps
- ✓ Lifetime access, kept current for 2026
Get the SAA-C03 Practice Exams →or try 25 free questions first