Book Image

AWS Certified Developer - Associate Guide

By : Vipul Tankariya, Bhavin Parmar
Book Image

AWS Certified Developer - Associate Guide

By: Vipul Tankariya, Bhavin Parmar

Overview of this book

AWS Certified Developer - Associate Guide starts with a quick introduction to AWS and the prerequisites to get you started. Then, this book gives you a fair understanding of core AWS services and basic architecture. Next, this book will describe about getting familiar with Identity and Access Management (IAM) along with Virtual private cloud (VPC). Moving ahead you will learn about Elastic Compute cloud (EC2) and handling application traffic with Elastic Load Balancing (ELB). Going ahead you we will talk about Monitoring with CloudWatch, Simple storage service (S3) and Glacier and CloudFront along with other AWS storage options. Next we will take you through AWS DynamoDB – A NoSQL Database Service, Amazon Simple Queue Service (SQS) and CloudFormation Overview. Finally, this book covers understanding Elastic Beanstalk and overview of 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 (29 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Dedication
Preface
Index

VPC best practices


The following list summarizes VPC best practices:

  • Before starting to design and implement AWS VPC, it is essential to understand present and future needs. It is recommended you plan your VPC architecture, considering the minimum requirement for the next 2 years. Once infrastructure is created on a VPC, making any changes in VPC requires redesigning and recreating infrastructure. Lateral changes in the design and infrastructure can be very time-consuming and expensive.
  • It is suggested you use CIDR range as per RFC 1918. Also, make sure that a sufficient number of IP addresses are available in each subnet to match with present and future needs. Also, ensure that the CIDR range in AWS does not conflict with the CIDR range used in any other data center or VPC where you may have to establish a VPN or Direct Connect connection.
  • Remember, AWS reserves five IP address for internal purposes. The first four and the last one are in an IP range.
  • Create subnets to isolate resources as...