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

Cheat sheet

This cheat sheet summarizes the main key points from this chapter:

  • Amazon ElastiCache is a fully managed caching service.
  • ElastiCache supports two different caching technologies, Redis and Memcached.
  • Redis has two modes, cluster mode enabled and cluster mode disabled.
  • ElastiCache supports read replicas on both engines.
  • ElastiCache can be provisioned both inside and outside of a VPC to meet your needs.
  • Redis supports sharding and complex data types and can run in Multi-AZ.
  • Caching can feature TTL, which ages out older records to save space and to ensure that the latest data is available in the cache.
  • Techniques such as write-through and lazy loading can be used to control the speed that the cache updates, balancing new data and saving space.