Network and Content Delivery
CoreAmazon Route 53
Explicit health checks, DNS, routing policies, configurations, and query logging.
Key points
- Route 53 covers authoritative DNS records, routing policies, health checks, and distinct public and Resolver query logs.
Best-known use cases
- D2.1, D2.2, and D5.1: configure or troubleshoot the named DNS answer, policy, health decision, or query evidence.
What candidates often confuse it with
- Hosted zones answer authoritatively; Resolver endpoints and rules forward recursive queries across network boundaries.
Key takeaway
Translate the traffic requirement into the record and policy, then verify health evaluation, TTL, and the correct log type.
Related services
- Amazon Application Recovery Controller
- AWS Client VPN
- Amazon CloudFront
Relevant exam tasks
- D2.1 — Task 2.1: Implement scalability and elasticity.
- 2.1.1 — Configure and manage scaling mechanisms in compute environments.
- D2.2 — Task 2.2: Implement highly available and resilient environments.
- 2.2.1 — Configure and troubleshoot Elastic Load Balancing (ELB) and Amazon Route 53 health checks.
- D5.1 — Task 5.1: Implement and optimize networking features and connectivity.
- 5.1.1 — Configure a VPC (for example, subnets, route tables, network ACLs, security groups, NAT gateways, internet gateway, egress-only internet gateway).