Route 53 Flashcards
Translates the human friendly hostnames into the machine IP addresses
www.google.com => 172.217.18.36
DNS (Domain Name System)
A highly available, scalable, fully managed and Authoritative DNS
Route 53
What does Authoritative mean?
The customer (you) can update the DNS records
Maps a hostname to IPv4
What record type is this?
A
Maps a hostname to IPv6
What record type is this?
AAAA
Maps hostname to another hostname
What record type is this?
CNAME
Name servers for the Hosted Zone
What record type is this?
NS
A container for récords that define how to route traffic to a domain and its subdomain
Hosted Zone
Contains records that specify how to route traffic on the internet
Public Hosted Zones
Contains records that specify how you route traffic within one or more VPCs
Private Hosted Zones
How much does it cost per hosted zone?
$0.50 per month
- Typically, route traffic to a single resource
- Can specify multiple values in the same record
- If multiple values are returned, a random one is chosen by the client
What routing policy is this?
Simple
- Control the % of the requests that go to each specific resource
- DNS records must have the same name and type
- Can be associated with Health Checks
- Use cases: load balancing between regions, testing new applications versions
What routing policy is this?
Weighted
TTL is mandatory for each DNS record except what?
Alias records
High TTL means what?
Less traffic on Route 53