Route 53 Routing Flashcards
What is Amazon Route 53?
Amazon Route 53 is a highly available and scalable cloud Domain Name System (DNS) web service, designed to give developers and businesses an extremely reliable and cost-effective way to route end users to Internet applications.
What are the key functions of Route 53?
Route 53 effectively connects user requests to infrastructure running in AWS – such as Amazon EC2 instances, Elastic Load Balancing load balancers, or Amazon S3 buckets – and can also be used to route users to infrastructure outside of AWS.
How does Route 53 support health checking?
Route 53 sends automated requests over the internet to your application, server, or other resources to verify that it’s reachable, available, and functional. This helps in rerouting traffic in case of an outage.
What is Simple Routing policy?
Simple Routing policy in Route 53 allows you to route internet traffic to a single endpoint. It’s the default routing policy and is used when there’s only one resource that performs a given function for your domain.
What is Weighted Routing policy?
Weighted Routing policy in Route 53 allows you to split traffic based on different weights assigned to your resources. It’s useful for load balancing and testing new application versions in production.
What is Latency Routing policy?
Latency Routing policy in Route 53 routes traffic based on the lowest network latency for your end user (i.e., which endpoint will give them the fastest response). This can help improve your application’s user experience.
What is Failover Routing policy?
Failover Routing policy in Route 53 routes traffic to a primary resource when it’s healthy and automatically reroutes to a secondary backup resource when the primary is unhealthy, ensuring your application’s availability.
What is Geolocation Routing policy?
Geolocation Routing policy in Route 53 lets you route traffic based on the geographic location of your users. It allows for content localization and restricting content to certain countries.
What is Multi-Value Answer Routing policy?
Multi-Value Answer Routing policy in Route 53 allows you to respond to DNS queries with up to eight healthy records selected at random. This is useful for balancing load across multiple resources.
What is Geoproximity Routing policy (with Traffic Flow)?
Geoproximity Routing policy in Route 53, when used with Traffic Flow, routes traffic based on the geographic location of your users and your resources. You can optionally bias traffic to favor closer resources.
