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AWS Certified Developer - Associate Guide - Second Edition

You're reading from  AWS Certified Developer - Associate Guide - Second Edition

Product type Book
Published in Jun 2019
Publisher Packt
ISBN-13 9781789617313
Pages 812 pages
Edition 2nd Edition
Languages
Authors (2):
Vipul Tankariya Vipul Tankariya
Profile icon Vipul Tankariya
Bhavin Parmar Bhavin Parmar
Profile icon Bhavin Parmar
View More author details
Toc

Table of Contents (30) Chapters close

Preface 1. Overview of AWS Certified Developer - Associate Certification 2. Understanding the Fundamentals of Amazon Web Services 3. Identity and Access Management (IAM) 4. Virtual Private Clouds 5. Getting Started with Elastic Compute Cloud (EC2) 6. Handling Application Traffic with ELB 7. Monitoring with CloudWatch 8. Simple Storage Service, Glacier, and CloudFront 9. Other AWS Storage Options 10. AWS Relational Database Service 11. AWS DynamoDB - A NoSQL Database Service 12. Amazon Simple Queue Service (SQS) 13. Simple Notification Service (SNS) 14. AWS Simple Workflow Service (SWF) 15. CloudFormation Overview 16. Understanding Elastic Beanstalk 17. Overview of AWS Lambda 18. Key Management Services 19. Working with AWS Kinesis 20. Working with AWS CodeBuild 21. Getting Started with AWS CodeDeploy 22. Working with AWS CodePipeline 23. CI/CD on AWS 24. Serverless Computing 25. Amazon Route 53 26. ElastiCache Overview 27. Mock Tests 28. Assessments 29. Another Book You May Enjoy

Routing policies

To resolve and return the IP address of the server that has the least latency to the client from the list of servers, while creating a record, it is essential to select an efficient routing policy. There are various routing policies available. Let's look at each of them:

  • Simple routing policy: This is one of the most common and simple DNS routing policies. It can have a FQDN or IP address as a value. Usually, to implement this routing policy using an IP address, use an A or AAAA record (based on IPv4 or IPv6 IP, respectively) or CNAME when using an Elastic Load Balancing (ELB) endpoint as a point of contact.
  • Failover routing policy: This routing policy serves traffic from one resource (primary server or location) when it is healthy and, if the primary resource is down, it will serve traffic from another resource (secondary server or location). It is very...
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