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 12.1 – stopping and starting EC2 instances at regular intervals using AWS Lambda

Imagine a scenario where you need to run a fleet of on-demand EC2 test servers that your user acceptance testing (UAT) team needs to perform multiple functional and technical tests on for an upcoming application that you are developing. Your UAT team only works from Monday to Friday, 9 A.M. to 5 P.M. The UAT team only needs access to the fleet of test servers during this time. Rather than have a technician manually start up all the servers in the morning and shut them down again at the end of the business day, you could automate the process using AWS Lambda. You would not want to have your on-demand EC2 instances running when they are not needed because you are charged for every hour that those servers are running.

In this exercise, we will look at how to configure AWS Lambda to automatically stop and then start your EC2 instances at defined schedules.

To complete the exercises in...