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

Introduction to Amazon ECS and Kubernetes

So far, we have been looking at hardware virtualization and using hypervisors to build VMs such as EC2 instances that we can run various applications on. Different applications often have specific requirements, and many applications will not be able to run together in the same VM due to incompatibility with the underlying libraries or runtime environments.

Traditional virtualization technologies involve using bare-metal hardware, upon which you configure a hypervisor. This hypervisor, as we discussed previously, allows you to essentially carve out physical hardware components (CPU, memory, storage, and so on) into smaller virtual components that allow you to then deploy VMs, or in the case of AWS, EC2 instances. Each EC2 instance, however, will need to host a guest operating system (Linux or Windows, for example), shared libraries and system files, and your application.

As shown in the following diagram, VMs take up a lot of resources...