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

Working with maintenance windows

All of the AWS-managed database services offer a maintenance window that can be defined by the customer. A maintenance window is a weekly timeslot when AWS is authorized to carry out patching work or other tasks that may cause an outage of your database. These outages will always be communicated in advance, but they cannot always be avoided. There is another window that will be created for a daily backup on RDS. AWS will assign a random maintenance window when you create a managed database. As a result, it is critical that the maintenance and backup windows are set for the quietest time for your application to avoid an unexpected outage or performance issue due to a backup running during peak hours.

You can modify the windows during and after the creation of a managed database.

You can also control the backup times and patterns using AWS Backup, which we will learn next.