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

Elements of Amazon CloudWatch

To understand and work with AWS-generated and custom metrics, it is important to understand a few basic concepts and terminologies used with Amazon CloudWatch, which are as follows:

  • Namespaces
  • Metrics
  • Dimensions
  • Statistics
  • Percentile
  • Alarms

Namespaces

CloudWatch namespaces are containers in which metrics for different applications are stored. It is a mechanism to isolate the metrics of different applications from each other. Namespaces ensure that an application's metrics, as well as respective statistical data, are not accidentally mixed up with any other application's metrics. All the AWS services that use CloudWatch to register their metrics use a unique namespace. A namespace name...