Route 53 fundamentals — AWS Solutions Architect Associate Exam.

Chapter 10: Route 53 fundamentals for the AWS SAA C03 Certification Exam.

Gonzalo Fernandez Plaza

--

In this chapter, we will study how AWS Route 53 works and all its main features, like the different Routing Policies we can use. These are the key concepts that we are going to review:

  1. Route 53 Introduction
  2. Supported DNS record types
  3. Hosted Zones
  4. Routing Policies
Route 53 for the AWS Solutions Architect Associate Certification.
Route 53 for the AWS Solutions Architect Associate Certification.

Remember that all the chapters from the course can be found in the following link.

AWS ROUTE 53 INTRODUCTION

At its most basic, a Domain Name System (DNS) is a directory of names that match IP addresses. Route 53 is AWS’s highly available and scalable cloud DNS web service.

It also has a service called Domain Registrar. When you want to get or register a new domain name, for example, the domain myrealcode.com part of the URL https://myrealcode.com/, you can register it with Amazon Route 53 Domain Registrar. You can also transfer the registration for existing domains from other registrars to Route 53 or transfer the registration for domains you register with Route 53 to another registrar. If you buy your domain on 3rd party website, you can still use Route53.

How to register a domain using AWS Route 53.
How to register a domain using AWS Route 53.

As we saw with the Load Balancers, Health Checks can also be placed on Route 53.

SUPPORTED DNS RECORD TYPES

  • A records → Route traffic to a resource, such as a web server, using an IPv4 address. Route to 104.198.14.52, for example.
Diagram explaining how Route 53 works.
How Route 53 works.
  • AAAA records → Route traffic to a resource, such as a web server, using an IPv6 address. Route to 2001:0db8:85a3:0:0:8a2e:0370:7334 for example.
  • CNAME → Maps DNS queries for the name of the current record, such as app.myrealcode.com, to another domain…

--

--

Gonzalo Fernandez Plaza

Computer Science Engineer & Tech Lead 🖥️. Publishing AWS & Snowflake ❄️ courses & exams. https://www.fullcertified.com