Routing and Health
- Failover routing uses health checks to return primary or secondary records.
- Latency routing returns the lowest-latency healthy endpoint for the user.
- Weighted routing distributes traffic by configured weights.
- Multivalue answer routing can return multiple healthy records.
Hybrid DNS
- Inbound resolver endpoints allow on-premises DNS servers to resolve AWS private names.
- Outbound resolver endpoints forward selected AWS DNS queries to on-premises DNS servers.
- Resolver rules define which domains should be forwarded.
- Private hosted zones are associated with VPCs, not directly with on-premises networks.
Exam Cues
- Need DNS failover across endpoints: Route 53 failover routing with health checks.
- Need AWS to resolve on-premises names: outbound resolver endpoint.
- Need on-premises to resolve AWS private names: inbound resolver endpoint.
- Need domain-specific forwarding: resolver rule.
Practice Route 53 Questions
Put your knowledge to the test with practice questions.