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

Maintaining an RDS instance

One of the main benefits of using RDS is that a lot of the normal maintenance tasks a DBA would carry out on-premises are handled for you by RDS. However, there are still some tasks that need to be handled.

Let's look at the most common tasks, starting with how to check database logs.

Checking database logs

It's common for databases to suffer from failures or generate errors that need to be investigated. On-premises, a DBA would look at the database logs stored on the server to start troubleshooting. However, on RDS, since there is no access to the operating system, we need to use a different method to access the logs.

There are three different methods we can use to check the database logs:

  • Use the RDS instance page on the AWS console.
  • Use a SQL query within the RDS instance.
  • Use CloudWatch logs.

CloudWatch is only available if you have enabled it. You can enable CloudWatch log publishing while provisioning the...