A Cloud Guru - Certified Solutions Architect Associate - Route53
27 May 2018
Route53 Routing Policies
This is the default routing policy when you create a new record set. This is most commonly used when you have a single resource that performs a given function for your domain, for example, one web server that serves content for the http://acloud.guru website.
Weighted Routing Policies let you split your traffic based on different weights assigned.
For example you can set 10% of your traffic to go to US-EAST-1 and 90% to go to EU-WEST-1.
Latency Based Routing allows you to route your traffic based on the lowest network latency for your end user (ie which region will give them the fastest response time)
Failover routing policies are used when you want to create an active/passive setup. For example you may want your primary site to be in EU-WEST-2 and your secondary DR Site in AP-SOUTHEAST-1.
Geolocation routing lets you choose where your traffic will be sent based on the geo location of your users.
ELB’s don’t have pre-defined IPv4 addresses, you resolve them using a DNS name.
Understand the difference between an Alias Record and a CNAME