Book Image

AWS Certified Developer - Associate Guide - Second Edition

By : Vipul Tankariya, Bhavin Parmar
5 (2)
Book Image

AWS Certified Developer - Associate Guide - Second Edition

5 (2)
By: Vipul Tankariya, Bhavin Parmar

Overview of this book

This book will focus on the revised version of AWS Certified Developer Associate exam. The 2019 version of this exam guide includes all the recent services and offerings from Amazon that benefits developers. AWS Certified Developer - Associate Guide starts with a quick introduction to AWS and the prerequisites to get you started. Then, this book will describe about getting familiar with Identity and Access Management (IAM) along with Virtual private cloud (VPC). Next, this book will teach you about microservices, serverless architecture, security best practices, advanced deployment methods and more. Going ahead we will take you through AWS DynamoDB A NoSQL Database Service, Amazon Simple Queue Service (SQS) and CloudFormation Overview. Lastly, this book will help understand Elastic Beanstalk and will also walk you through AWS lambda. At the end of this book, we will cover enough topics, tips and tricks along with mock tests for you to be able to pass the AWS Certified Developer - Associate exam and develop as well as manage your applications on the AWS platform.
Table of Contents (30 chapters)
Free Chapter
1
Overview of AWS Certified Developer - Associate Certification

Understanding a stack

A stack is created upon the successful execution of a template in CloudFormation. Executing a template creates a defined set of AWS resources. A group of these AWS resources defined in CloudFormation is called a stack. During template execution, if CloudFormation is unable to create any resource, the whole stack creation fails. When a CloudFormation execution fails, it rolls back all of the execution steps and deletes any resources created during the process. CloudFormation execution may fail due to several reasons, including insufficient privileges. Due to limited IAM privileges, if the rollback process is unable to delete the created resources, then the incomplete stack remains in the AWS account until it is deleted by an IAM user with sufficient privileges to delete the stack.

At the time of creating a stack from the template, AWS CloudFormation only checks...