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AWS Certified DevOps Engineer - Professional Certification and Beyond

You're reading from   AWS Certified DevOps Engineer - Professional Certification and Beyond Pass the DOP-C01 exam and prepare for the real world using case studies and real-life examples

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Product type Paperback
Published in Nov 2021
Publisher Packt
ISBN-13 9781801074452
Length 638 pages
Edition 1st Edition
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Adam Book Adam Book
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Table of Contents (31) Chapters Close

Preface 1. Section 1: Establishing the Fundamentals
2. Chapter 1: Amazon Web Service Pillars FREE CHAPTER 3. Chapter 2: Fundamental AWS Services 4. Chapter 3: Identity and Access Management and Working with Secrets in AWS 5. Chapter 4: Amazon S3 Blob Storage 6. Chapter 5: Amazon DynamoDB 7. Section 2: Developing, Deploying, and Using Infrastructure as Code
8. Chapter 6: Understanding CI/CD and the SDLC 9. Chapter 7: Using CloudFormation Templates to Deploy Workloads 10. Chapter 8: Creating Workloads with CodeCommit and CodeBuild 11. Chapter 9: Deploying Workloads with CodeDeploy and CodePipeline 12. Chapter 10: Using AWS Opsworks to Manage and Deploy your Application Stack 13. Chapter 11: Using Elastic Beanstalk to Deploy your Application 14. Chapter 12: Lambda Deployments and Versioning 15. Chapter 13: Blue Green Deployments 16. Section 3: Monitoring and Logging Your Environment and Workloads
17. Chapter 14: CloudWatch and X-Ray's Role in DevOps 18. Chapter 15: CloudWatch Metrics and Amazon EventBridge 19. Chapter 16: Various Logs Generated (VPC Flow Logs, Load Balancer Logs, CloudTrail Logs) 20. Chapter 17: Advanced and Enterprise Logging Scenarios 21. Section 4: Enabling Highly Available Workloads, Fault Tolerance, and Implementing Standards and Policies
22. Chapter 18: Autoscaling and Lifecycle Hooks 23. Chapter 19: Protecting Data in Flight and at Rest 24. Chapter 20: Enforcing Standards and Compliance with System Manger's Role and AWS Config 25. Chapter 21: Using Amazon Inspector to Check your Environment 26. Chapter 22: Other Policy and Standards Services to Know 27. Section 5: Exam Tips and Tricks
28. Chapter 23: Overview of the DevOps Professional Certification Test 29. Chapter 24: Practice Exam 1 30. Other Books You May Enjoy

S3 versioning

In the S3 service, you can keep track of how files change over time using the versioning feature. While this feature does add additional cost, it is especially useful as a way to help restore deleted objects.

Once you enable versioning, each object in that S3 bucket gets a value for the version ID. If you haven't enabled versioning on the bucket, then the version id for the objects in the bucket is set to null:

Figure 4.19 – An S3 bucket with versioning enabled showing version ids

Once you upload a subsequent version of the object with versioning turned on, Amazon produces a new version id for the new version of the object and then places that newer version of the object in the bucket.

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