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

Chapter 15

  1. 1

Using Application Insights will help identify the root cause quickly and is the correct answer.

Performance Insights is useful if this is definitely a database problem, but it will not help find any potential application issue.

AWS X-Ray is used to diagnose issues with microservices and it does not meet the needs of this use case.

Contacting AWS support is not a good solution, as they will not understand your application.

  1. 3

All answers could be correct, but the most likely answer is that security groups have been altered, which will stop your application from connecting to the database.

  1. 3

This command misses the -apply-immediately flag.

The wrong syntax is used –alter-database is wrong.

Modify-db-instance is correct and this command has the -apply-immediately flag, so this is the correct answer.

The wrong syntax is used –alter-db-instance is wrong.