Book Image

AWS Certified Cloud Practitioner Exam Guide

By : Rajesh Daswani
3 (1)
Book Image

AWS Certified Cloud Practitioner Exam Guide

3 (1)
By: Rajesh Daswani

Overview of this book

Amazon Web Services is the largest cloud computing service provider in the world. Its foundational certification, AWS Certified Cloud Practitioner (CLF-C01), is the first step to fast-tracking your career in cloud computing. This certification will add value even to those in non-IT roles, including professionals from sales, legal, and finance who may be working with cloud computing or AWS projects. If you are a seasoned IT professional, this certification will make it easier for you to prepare for more technical certifications to progress up the AWS ladder and improve your career prospects. The book is divided into four parts. The first part focuses on the fundamentals of cloud computing and the AWS global infrastructure. The second part examines key AWS technology services, including compute, network, storage, and database services. The third part covers AWS security, the shared responsibility model, and several security tools. In the final part, you'll study the fundamentals of cloud economics and AWS pricing models and billing practices. Complete with exercises that highlight best practices for designing solutions, detailed use cases for each of the AWS services, quizzes, and two complete practice tests, this CLF-C01 exam study guide will help you gain the knowledge and hands-on experience necessary to ace the AWS Certified Cloud Practitioner exam.
Table of Contents (23 chapters)
1
Section 1: Cloud Concepts
5
Section 2: AWS Technologies
16
Section 3: AWS Security
18
Section 4: Billing and Pricing
20
Chapter 16: Mock Tests

Learning about DNS and global routing with Amazon Route53

AWS Route53 is Amazon's global DNS, which is a service to help translate human-readable names into an IP address because, ultimately, computers connect to each other over IP addresses. DNS servers across the internet host billions of such name-to-IP address records, among other types of records. When you use your favorite browser to visit a particular website, such as example.com, your browser sends a request to your local DNS service provider, which, if necessary, refers the query to that domain's (example.com) authoritative DNS server. This authoritative DNS server responds with the IP address of the website you are trying to access, and your browser is then able to establish a connection with the website (in this case, example.com). This process of translating domain names to IP addresses is called name resolution.

Amazon Route53 offers three primary functions:

  • Domain registration
  • DNS routing
  • ...