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AWS Certified Developer - Associate Guide

You're reading from   AWS Certified Developer - Associate Guide Your one-stop solution to passing the AWS developer's 2019 (DVA-C01) certification

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Product type Paperback
Published in Jun 2019
Publisher Packt
ISBN-13 9781789617313
Length 812 pages
Edition 2nd Edition
Tools
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Authors (2):
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Bhavin Parmar Bhavin Parmar
Author Profile Icon Bhavin Parmar
Bhavin Parmar
Vipul Tankariya Vipul Tankariya
Author Profile Icon Vipul Tankariya
Vipul Tankariya
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Table of Contents (30) Chapters Close

Preface 1. Overview of AWS Certified Developer - Associate Certification FREE CHAPTER 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

AWS Lambda best practices

The AWS Lambda best practices are as follows:

  • It is best practice to write an AWS Lambda function in a stateless style. It should not have any rapport with the basic compute infrastructure.
  • A persistent state should be stored in another cloud service, such as Amazon S3 or DynamoDB.
  • It is recommended to separate core logic from the Lambda handler, as the handler is generally used as an entry point to the function.
  • When a Lambda function is deployed over a VPC, it is a best practice to avoid using DNS resolution for a public hostname, as it may take several seconds to resolve, adding several billable seconds.
  • It is recommended that you specify at least one subnet in each AZ with the Lambda function configuration.
  • It is recommended that you make sure that sufficient subnet IPs are free to allow Lambda functions to scale. If there aren't any free subnet...
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