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 Aurora pricing

Aurora pricing is different between provisioned mode and Serverless. In provisioned mode, Aurora is priced in a similar way to RDS, where you decide how much resources (CPU and memory) you need, as well as how much storage. In Serverless, you are billed based on the Aurora Capacity Units (ACUs), which are priced as a combination of CPU and memory. In addition, you pay for any specific features you use such as global tables and Backtrack. In addition, you pay for read/write I/O usage in Aurora, which is included as standard in RDS.

To calculate your total Aurora costs, you will need to choose an instance size, database engine (MySQL or PostgreSQL), storage size, and I/O requirements. You can use the AWS Calculator to help you build your estimate. The following screenshot shows the figures you need to add to the Calculator for storage and I/O rates:

Figure 5.3 – AWS Calculator

The Calculator URL is https://calculator.aws...