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

Backing up and restoring Aurora

Ensuring your data is secure and can be restored rapidly is a critical part of any reliable and resilient database system. Aurora has multiple options for backup and recovery strategies.

Backing up an Aurora cluster

Amazon Aurora is backed up continually and automatically as well as a system backup taken daily. The continual backups are taken throughout the day and do not have an impact on the performance of the database; this is a major advantage of the cluster volumes Aurora uses. The daily backup is taken during the backup window defined and this can have a low impact on performance, so the backup window should be chosen during a non-peak time. The backups are held in S3 until the retention time is reached, when they are deleted. The retention time can be set between one and 35 days and the default is one day regardless of whether the database is provisioned by the console or awscli.

You can also make ad-hoc backups at any time. These are...