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

Total Cost of Ownership (TCO) versus Return on Investment (ROI)


There is no doubt that public cloud computing has many advantages over traditional data center concepts; for example, it provides a cutting-edge, secure, and robust platform to host an organization's IT infrastructure. It impacts costs by turning CapEx into OpEx. However, when making an investment in any technology or service, it is important for a business to understand two key aspects: ROI and TCO. Both of these involve careful and critical analysis. It is very important to find the lowest cost in the long run rather than just the lowest initial cost.

Deriving TCO not only involves purchase cost and maintenance cost, but it also involves hidden costs such as operating cost, setup cost, change or reconfiguration cost, upgrade cost, security cost, infrastructure support cost, insurance cost, electricity cost, depreciation, tax savings, and environmental impact.

Note

AWS provides an online TCO calculator at https://awstcocalculator...