Book Image

AWS Certified DevOps Engineer - Professional Certification and Beyond

By : Adam Book
Book Image

AWS Certified DevOps Engineer - Professional Certification and Beyond

By: Adam Book

Overview of this book

The AWS Certified DevOps Engineer certification is one of the highest AWS credentials, vastly recognized in cloud computing or software development industries. This book is an extensive guide to helping you strengthen your DevOps skills as you work with your AWS workloads on a day-to-day basis. You'll begin by learning how to create and deploy a workload using the AWS code suite of tools, and then move on to adding monitoring and fault tolerance to your workload. You'll explore enterprise scenarios that'll help you to understand various AWS tools and services. This book is packed with detailed explanations of essential concepts to help you get to grips with the domains needed to pass the DevOps professional exam. As you advance, you'll delve into AWS with the help of hands-on examples and practice questions to gain a holistic understanding of the services covered in the AWS DevOps professional exam. Throughout the book, you'll find real-world scenarios that you can easily incorporate in your daily activities when working with AWS, making you a valuable asset for any organization. By the end of this AWS certification book, you'll have gained the knowledge needed to pass the AWS Certified DevOps Engineer exam, and be able to implement different techniques for delivering each service in real-world scenarios.
Table of Contents (31 chapters)
1
Section 1: Establishing the Fundamentals
7
Section 2: Developing, Deploying, and Using Infrastructure as Code
16
Section 3: Monitoring and Logging Your Environment and Workloads
21
Section 4: Enabling Highly Available Workloads, Fault Tolerance, and Implementing Standards and Policies
27
Section 5: Exam Tips and Tricks

Understanding the basis and background of DynamoDB

DynamoDB is a NoSQL database. This means that it is not only SQL and, more importantly, that DynamoDB doesn't need a fully structured schema to enter data. Its flexibility and performance are what drives many to DynamoDB, along with its pay-per-use pricing model and high availability and scaling.

DynamoDB origins

In 2007, Amazon published a whitepaper authored by the future AWS CTO, Werner Volgels, and others called Dynamo: Amazon's Highly Available Key-value Store.

You can still find this paper today at https://www.allthingsdistributed.com/files/amazon-dynamo-sosp2007.pdf.

As Amazon built out its e-commerce platform, it was trying to solve issues such as the following:

  • Partitioning
  • High availability for writes
  • Handling temporary failures
  • Recovering from permeant failures
  • Membership and failure detection

The databases at the time were just not performant enough, and the e-commerce...