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 DynamoDB

Amazon DynamoDB is a fully managed NoSQL and serverless database service that supports key-value and document data structures. It is a proprietary database engine only offered by AWS. You may recall from Chapter 2, Understanding Database Fundamentals, that a NoSQL database is a database designed to store semi-structured or non-structured data without a concrete schema. DynamoDB is a key-value database, meaning that all data is stored with a key that acts as an identifier for the data, and the values, which are the attributes. A serverless database is one for which you do not need to define the compute requirements. When you provision an RDS instance, you need to calculate the number of CPUs and amount of memory you will need. When you provision DynamoDB, you do not need to do so and you can opt to run in on-demand mode, where AWS will manage your table capacity for you. DynamoDB uses the amount of data that your application reads and writes to work out your charges...