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

Deploying Container and Serverless Workloads

Even virtualized servers like EC2 instances tend to be resource-hungry. They do, after all, act like discrete, stand-alone machines running on top of a full-stack operating system. That means that having 5 or 10 of those virtual servers on a single physical host involves some serious duplication because each one will require its own OS kernel and device drivers.

Containers

Container technologies such as Docker avoid a lot of that overhead by allowing individual containers to share the Linux kernel with the physical host. They’re also able to share common elements (called layers) with other containers running on a single host. This makes Docker containers fast to load and execute and also lets you pack many more container workloads on a single hardware platform.

You’re always free to fire up one or more EC2 instances, install Docker, and use them to run as many containers as you’d like. But keeping all the bits and pieces...