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

Review

Let's now practice a few exam-style questions:

  1. An application development team complains that they are experiencing performance issues with ElastiCache Redis. You discover that the performance issues occur during the automated backup window. What actions can you take to improve backup performance? (Select two.)
    1. Schedule an automated backup window to occur at midnight.
    2. Set the reserved-memory-percentage parameter.
    3. Create backups from a read replica.
    4. Create additional read replicas.
    5. Increase the number of shards.
  2. An application team wishes to use ElastiCache Redis to improve its application performance. The application has a requirement that the data must always be the most recent. Which caching strategy should the team utilize?
    1. Write-through
    2. Lazy loading
    3. Cache-aside
    4. Read-through
  3. You are advising a company on how to plan a deployment of ElastiCache Redis with cluster mode disabled. What is the maximum number of shards and read replicas that the cluster can have?
    1. 1 shard...