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

Overview of the Amazon Aurora service

Amazon Aurora is a managed database service. This means that AWS offers a wrapper around a relational database that handles many of the functions normally carried out by a Database Administrator (DBA). Where Aurora differs from RDS is that Aurora always speeds up the database functionality, and it can run up to five times faster than a non-Aurora version of the same database. Aurora manages such fast speeds by using a distributed storage system to avoid bandwidth and disk-read bottlenecks. Aurora has many benefits compared to RDS:

  • Faster scaling: Aurora can almost instantly add additional read replicas whereas with RDS these can take some time to provision.
  • Read replicas: Aurora supports up to 15 replicas compared to five on RDS.
  • High durability: Aurora stores your data in six different locations across three Availability Zones (AZs) by default, so it has very high resilience as standard.
  • Rapid disaster recovery: Aurora can...