AWS Certified CloudOps Engineer - Associate
Route 53 Routing Policies
Eight routing policies answer the same question differently: given this query, which of my endpoints should the caller get? This lesson covers health checks first, then each policy, and the boundaries between the 3 policies that all claim to route by location.
Intermediate 30 minutes 6 Learning Objectives
- Describe the 3 health check types and explain the 18% rule that decides whether an endpoint is healthy
- Calculate the traffic share of a weighted record and predict what happens when a weight is 0
- Distinguish latency, geolocation, geoproximity, and IP-based routing by the input each one actually uses
- Configure active-passive failover with failover records and active-active failover with any other policy
- Explain what multivalue answer routing returns and why it is not a load balancer
- Select the correct routing policy from the constraint stated in a scenario