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

CloudFront

Amazon CloudFront is a fast content delivery network (CDN) that aims to deliver image, PDF, audio/video files, live broadcasting, dynamic web content (.html, .css, .js), and APIs. Lambda@Edge is an extension of AWS Lambda that executes functions to customize the content delivered by CloudFront.

A CDN consists of a geographically distributed group of caching servers. Each geographical location situated servers are called an Edge Location or Point of Presence (PoP). It reduces the load on an application origin by caching frequently used content. The aim is to minimize the latency and improve the speed. The following image may help you to understand how the CDN works at a high level, once it is configured:

The preceding diagram can be interpreted as follows:

  1. An end user accesses the website or an application hosted on a Amazon S3, AWS EC2, or a custom origin. A custom...