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

Scalability and Elasticity

The world’s largest public cloud providers can accomplish a great deal through combining the wonders of server virtualization with the power that comes from owning vast data centers filled with racks upon racks of hardware resources. Elasticity and scalability are the two key principles through which a lot of this happens, and understanding exactly what they mean can help you optimize your design choices so you’ll get the most bang for your cloud buck.

Note that there really are no precise and authoritative definitions for scalability and elasticity in the context of cloud computing—and any definitions you do see are bound to involve at least some overlap. Nevertheless, building some kind of picture in your mind of how these two principles work can be valuable.

Scalability

A scalable service will automatically grow in capacity to seamlessly meet any changes in demand. A well-designed cloud-based operation will constantly monitor the health...