route53.txt

Routing Policies:
- Simple
--- default routing policy when you create a new record set. Most commonly used when you have a single resource that performs a given function for your domain (e.g. one web server that serves content for violetfamily.com)
- Weighted
--- allows you to split your traffic based on different weights assigned
- Latency
--- allows you to route your traffic based on the lowest latency for your end user (region with fastest response time)
- Failover
--- used when you want to create an active/passive setup (e.g. use primary site in US-EAST-1 and secondary DR Site in US-WEST-1).
- Geolocation







Exam Notes:
- You can only resolve an ELB by going to it's DNS name
- ELB never has IPv4 address, only DNS names
- Understand difference between Alias Record and CName Record
- Given the choice, always choose Alias Record over a CName Record
- Understand routing policies and their use cases