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

An overview of Amazon ElastiCache

Amazon ElastiCache is a fully managed database caching solution that offers two different caching technologies, Redis and Memcached. We will look in more depth at these different engines in the next section. By being a fully managed service, AWS takes ownership of any patching of databases and virtual machines on which they are running. ElastiCache uses a specialized instance class called cache, which is optimized for memory to allow the caching service to work as efficiently as possible.

You can think of ElastiCache in a similar way to RDS in that it is a service wrapper that handles the day-to-day tasks, such as patching, backups, and the monitoring of a database engine, rather than being a database engine itself. RDS offers a choice of several different database engines, such as PostgreSQL and Oracle, in the same way that ElastiCache offers Redis and Memcached. As such, the features available will differ depending on which engine you chose.

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