Book Image

AWS Certified Cloud Practitioner Study Guide: CLF-C01 Exam

By : Ben Piper, David Clinton
Book Image

AWS Certified Cloud Practitioner Study Guide: CLF-C01 Exam

By: Ben Piper, David Clinton

Overview of this book

AWS certifications validate the technical skills and knowledge required for building secure and reliable applications on the AWS cloud. The AWS Certified Cloud Practitioner certification is for individuals who have the knowledge and skills necessary to demonstrate an understanding of the AWS Cloud, independent of specific technical roles addressed by other AWS certifications. An AWS Certified Cloud Practitioner is a recommended path to achieving specialty certification or an optional start toward Associate certification. This guide provides a solid introduction and the resources you need to prove your knowledge in the exam. It covers all topics, beginning with what the AWS cloud and its basic global infrastructure and architectural principles. Other chapters dive into the technical, exploring core characteristics of deploying and operating in the AWS Cloud Platform, as well as basic security and compliance aspects and the shared security model. The text identifies sources of documentation or technical assistance, such as white papers or support tickets. The authors discuss the AWS Cloud value proposition and define billing, account management, and pricing models. This includes describing the key services AWS can provide and their common use cases such as compute, analytics, and so on. By the end of this book, you'll be thoroughly prepared for the foundational CLF-C01 exam.
Table of Contents (24 chapters)
Free Chapter
1
Cover
2
Acknowledgments
3
About the Authors
4
Table of Exercises
5
Introduction
6
Assessment Test
7
Answers to Assessment Test
20
Index
21
Advert
22
End User License Agreement

Route 53

Route 53 is Amazon’s global Domain Name System (DNS) service. The primary purpose of DNS is to translate human-readable domain names (such as example.com) into IP addresses. Here’s a simplified version of how it works: when you enter the domain name example.com into your web browser, your computer sends out a query to its configured DNS server asking for the IP address of that domain. The DNS server then sends the query to the domain’s authoritative DNS server—the one that’s in charge of the example.com domain name. The authoritative DNS server responds with the IP address for example.com. This process of translating a domain name to an IP address is called name resolution.

Resource Records

Name resolution goes beyond just mapping domain names to IP addresses. DNS can store mappings for different types of data, including IPv6 addresses, mail servers, and even arbitrary text. When you send an email to someone, DNS provides the lookup mechanism...