Networking and Content Delivery
RecognitionAmazon Route 53
Highly available Domain Name System, domain registration, and health-checking service.
Key points
- DNS records direct names to supported endpoints and custom-domain targets.
- Application deployment and API stage mapping must exist independently of DNS.
- DVA-C02 requires custom-domain context, not DNS or network infrastructure design.
Best-known use cases
- Resolve a custom application or API hostname.
- Participate in an existing traffic-switch or endpoint mapping.
What candidates often confuse it with
- Route 53 resolves names; API Gateway custom-domain mapping selects the API and stage path.
- DNS health checks and application readiness can observe different boundaries.
Key takeaway
Recognize Route 53 as the name-resolution layer, not the API deployment or runtime configuration layer.
Related services
- Amazon API Gateway
- Elastic Load Balancing
- Amazon CloudFront
Relevant exam tasks
- D3.4 — Deploy code by using AWS Continuous Integration and Continuous Delivery (CI/CD) services
- 3.4.2 — Describe API Gateway stages and custom domains
- 3.4.5 — Deploy an application version by using deployment strategies