Book Image

AWS Certified Database – Specialty (DBS-C01) Certification Guide

By : Kate Gawron
5 (1)
Book Image

AWS Certified Database – Specialty (DBS-C01) Certification Guide

5 (1)
By: Kate Gawron

Overview of this book

The AWS Certified Database – Specialty certification is one of the most challenging AWS certifications. It validates your comprehensive understanding of databases, including the concepts of design, migration, deployment, access, maintenance, automation, monitoring, security, and troubleshooting. With this guide, you'll understand how to use various AWS databases, such as Aurora Serverless and Global Database, and even services such as Redshift and Neptune. You’ll start with an introduction to the AWS databases, and then delve into workload-specific database design. As you advance through the chapters, you'll learn about migrating and deploying the databases, along with database security techniques such as encryption, auditing, and access controls. This AWS book will also cover monitoring, troubleshooting, and disaster recovery techniques, before testing all the knowledge you've gained throughout the book with the help of mock tests. By the end of this book, you'll have covered everything you need to pass the DBS-C01 AWS certification exam and have a handy, on-the-job desk reference guide.
Table of Contents (24 chapters)
1
Part 1: Introduction to Databases on AWS
Free Chapter
2
Chapter 1: AWS Certified Database – Specialty Overview
5
Part 2: Workload-Specific Database Design
12
Part 3: Deployment and Migration and Database Security
16
Part 4: Monitoring and Optimization
20
Part 5: Assessment
21
Chapter 16: Exam Practice

Understanding DynamoDB advanced features

DynamoDB has several additional features that can be used to help support auditing and compliance requirements. Often, companies have a requirement to audit all changes made to database tables, especially the ones containing personally identifiable information (PII) such as customer names and addresses. These are the three tools that can be used:

  • DynamoDB Streams
  • CloudTrail
  • Time to live (TTL)

Additionally, for some very large (multi-TB) datasets or applications needing extremely fast microsecond response times, they can consider using DynamoDB Accelerator (DAX).

Let's start by looking at DynamoDB Streams and how it can be used for auditing purposes and to trigger other actions.

DynamoDB Streams

DynamoDB Streams is a time-ordered sequence of events affecting the items in your DynamoDB table. This includes inserts, deletes, and updates. The changes are written to a log, which can then be read and used by other...