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

Summary

In this chapter, you learned about the differences between vertical scaling and horizontal scaling. We discussed options to increase an EC2 instance's specification and capacity. We then examined the AWS ELB service and how it can be used to evenly distribute incoming application traffic across a fleet of EC2 instances. You learned about the different types of ELBs and their use cases—ALBs, NLBs, GWLBs, and CLBs. We discussed how, using ELB, you can distribute the placement of EC2 instances that power your application across multiple AZs, thereby offering HA of services in case of AZ failures or outages.

Next, we examined how we can automatically scale out (add more EC2 instances to our fleet of servers that support an application) using the Amazon Auto Scaling service. Auto Scaling can help us scale out when demand increases and equally scale back in when demand drops, ensuring that you always have the right number of EC2 instances to provide the best user experience...