Routing policies (simple, weighted, latency) in AWS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a simple routing policy in AWS Route 53?

A simple routing policy routes traffic to a single resource, like a web server. It is like giving your friend one address to visit without any special rules.

intermediate

How does weighted routing policy work in AWS Route 53?

Weighted routing lets you split traffic between multiple resources by assigning weights. For example, 70% of visitors go to server A and 30% to server B, like sharing slices of a pizza.

intermediate

What is the purpose of latency routing policy?

Latency routing sends users to the resource with the lowest network delay. It’s like choosing the closest store to get your item faster.

beginner

Can you use weighted routing to test a new version of your website?

Yes, weighted routing can send a small percentage of users to the new version while most use the old one. This helps test safely without affecting everyone.

advanced

What happens if latency routing cannot find a resource with lower latency?

If no resource has lower latency, Route 53 routes traffic to the next best resource based on latency measurements, ensuring users get the fastest possible response.

Which routing policy sends all traffic to a single resource without distribution?

A Simple routing

B Weighted routing

C Latency routing

D Failover routing

Simple routing sends all traffic to one resource without splitting or conditions.

How does weighted routing distribute traffic?

A Based on resource health

B Based on geographic location

C Based on assigned weights

D Based on lowest latency

Weighted routing uses weights to split traffic proportionally among resources.

Latency routing directs users to which resource?

A The resource with the lowest cost

B The resource with the lowest network delay

C The resource with the highest capacity

D The resource with the most traffic

Latency routing chooses the resource with the lowest network delay to improve user experience.

Which routing policy is best for testing new features with limited users?

A Weighted routing

B Simple routing

C Latency routing

D Geolocation routing

Weighted routing allows sending a small percentage of traffic to a new version for testing.

If latency routing cannot find a faster resource, what happens?

A Traffic is dropped

B Traffic is routed randomly

C Traffic is routed to the first resource created

D Traffic is routed to the next best resource by latency

Route 53 routes traffic to the next best resource based on latency measurements.

Explain the differences between simple, weighted, and latency routing policies in AWS Route 53.

Think about how traffic is directed in each policy.

Describe a real-life scenario where weighted routing would be useful.

Consider how you might share something between friends in parts.