You're reading from CompTIA Security+: SY0-601 Certification Guide Complete coverage of the new CompTIA Security+ (SY0-601) exam to help you pass on the first attempt

Product type Paperback

Published in Dec 2020

Publisher Packt

ISBN-13 9781800564244

Length 550 pages

Edition 2nd Edition

Languages

Python

Tools

Kali Linux

Concepts

Cybersecurity

Author (1):

Ian Neil

View More author details

Table of Contents (24) Chapters

Preface

1. Objectives for the CompTIA Security+ 601 exam

Exam Objectives (Domains)

2. Section 1: Security Aims and Objectives FREE CHAPTER

3. Chapter 1: Understanding Security Fundamentals

4. Chapter 2: Implementing Public Key Infrastructure

5. Chapter 3: Investigating Identity and Access Management

6. Chapter 4: Exploring Virtualization and Cloud Concepts

7. Section 2: Monitoring the Security Infrastructure

8. Chapter 5: Monitoring, Scanning, and Penetration Testing

9. Chapter 6: Understanding Secure and Insecure Protocols

10. Chapter 7: Delving into Network and Security Concepts

11. Chapter 8: Securing Wireless and Mobile Solutions

12. Section 3: Protecting the Security Environment

13. Chapter 9: Identifying Threats, Attacks, and Vulnerabilities

14. Chapter 10: Governance, Risk, and Compliance

15. Chapter 11: Managing Application Security

16. Chapter 12: Dealing with Incident Response Procedures

17. Section 4: Mock Tests

18. Chapter 13: Mock Exam 1

19. Mock Exam 1 Solutions

20. Chapter 14: Mock Exam 2

21. Mock Exam 2 Solutions

22. Chapter Review Solutions

23. Other Books You May Enjoy

Implementing Cybersecurity Resilience

It is important that companies have redundancy or fault tolerance built in so that they are protected from cyber attacks.

Redundancy

Redundancy is the process of when one part of a system fails but we have the ability to keep the system running. It could also be referred to as fault tolerance. Let’s begin by looking at the different types of redundancy that companies could deploy. We will start with disks and then move on to geographical dispersal.

Disk

There is a need for the disk setup on servers to provide redundancy, sometimes known as fault tolerance. In simple terms, this means that if one or more disks fail, the data is still available. There are different Redundant Array of Independent Disks (RAID) levels, so let’s look at each of these in turn, starting with RAID 0: