AWS Cloud Developer Associate Certification

  1. Route53
  • Route 53 offers the following functions:
    • Domain name registry.
    • DNS resolution
    • Health checking of resources
  • Route 53 is located alongside all edge locations

AWS Route 53 Records

  • Amazon Route 53 currently supports the following DNS record types:
    • Ø A
    • CNAME (canonical name record).
    • CAA (certification authority authorization).
    • Alias (an Amazon Route 53-specific virtual record).

AWS Route 53 CNAME vs Alias

CNAMEAlias
Route 53 charges for CNAME queriesRoute 53 doesn’t charge for alias
queries to AWS resources
You can’t create a CNAME record at
the top node of a DNS namespace
(zone apex)		You can create an alias record at the
zone apex (however you can’t route to
a CNAME at the zone apex)
A CNAME can point to any DNS
record that is hosted anywhere		An alias record can only point to a
CloudFront distribution, Elastic
Beanstalk environment, ELB, S3 bucket
as a static website, or to another
record in the same hosted zone that
you’re creating the alias record in

AWS Route 53 Routing Policies

PolicyWhat it Does
Simple
Failover
Geolocation
Geoproximity
Latency
Multivalue answer
Weighted

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sevanand yadav

software engineer working as web developer having specialization in spring MVC with mysql,hibernate

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