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Flashcards in Route53/DNS Deck (11):
1

Top Level Domain

Last portion of the Web Address. ie .com, .net, .org

2

Reigstrars

Authority that can assign domain names under one or more top level domains.

3

NS Records

Name Server records are used by top level Domain Servers to direct traffic to the Content DNS Server

4

Route53

AWS Resource that can create NS Records that you can take too Domain Registrars Like GoDaddy.

5

A Record

Most Fundamental DNS Record. Resolves Name to IP Address.

6

Elastic LB (Load Balancer)

Does not contain IPv4 address. Contains only the DNS Name. Used to route traffic to AWS Resources.

7

TTL (Time To Live)

cache that is equal to the value of time to live in seconds.

8

CName (Canonical Name)

Resolves a domain to another. m.Facebook to Mobile.Facebook

9

Alias

Maps your domain to your AWS Resource. Typically your maps domain to ELB.

10

Alias vs CNAME

-FREE
-Can be created for the zone apex
-Points to AWS Resource

11

Route53 Routing Policies

-Simple: Default RoundRobin type routing.
-Weighted
-Latencey
-Fail Over
-Geolocation