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

Exercise 8.1 – Extending your VPC to host database subnets

In Chapter 7, AWS Compute Services, you expanded your VPC to include both private subnets and public subnets. Generally, you would only host services in a public subnet that would need direct exposure on the internet. Examples include the bastion host server we deployed earlier in Chapter 7, AWS Compute Services (which we will discuss in the next chapter).

Most applications are deployed across tiers – so, for example, you can have a web tier, an application tier, and a database tier. These different tiers are designed to separate different components of your application stack, allowing you to create a degree of isolation, as well as benefit from a layered security model. In Chapter 7, AWS Compute Services , as part of Exercise 7.1 – Expanding ProductionVPC so that it includes two public subnets and two private subnets, you also configured two private subnets across two Availability Zones to host your...