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

VPC networking

One of the most critical areas within a VPC is networking. The network settings control which systems can talk to others, whether a server can connect to the internet or not, and greatly enhance the security of your systems by limiting access to only the parts that a user requires. The first area of a VPC network we will learn about is subnets.

Subnets

Subnets are used to logically divide your VPC network into smaller chunks that you can then control separately. When you first create a VPC, you are required to give it a network IP range (called classless inter-domain routing (CIDR)), such as 192.168.0.1/16 (this would give you 65,634 IP addresses). You can then create subnets to split this very large IP range into different segments. Subnets are typically split into private and public subnets. A private subnet will not allow traffic from the internet to reach it so is a useful place to put things such as a database that will only talk to the application and not...