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

Setting up DMS

To start a DMS task, we need to configure the DMS environment. This involves creating a replication instance, as well as the source and target endpoints, and setting up the task itself with the transformation rules we want to apply. The first component we must create is the replication instance.

Replication instances

A replication instance is an EC2 instance that's preconfigured with the DMS application code. Its role is to provide compute resources to any data conversions that need to be handled, as well as store data that's ready to be applied during a CDC mode task. The replication instance can handle multiple tasks simultaneously and can be sized according to your needs. You can monitor the performance and resource usage of a replication instance while tasks are running to help you assess whether the instance is sized correctly. You can also have multiple replication instances per account, but only one can be assigned to a task at once; there is no...