Book Image

Cisco Certified CyberOps Associate 200-201 Certification Guide

By : Glen D. Singh
Book Image

Cisco Certified CyberOps Associate 200-201 Certification Guide

By: Glen D. Singh

Overview of this book

Achieving the Cisco Certified CyberOps Associate 200-201 certification helps you to kickstart your career in cybersecurity operations. This book offers up-to-date coverage of 200-201 exam resources to fully equip you to pass on your first attempt. The book covers the essentials of network security concepts and shows you how to perform security threat monitoring. You'll begin by gaining an in-depth understanding of cryptography and exploring the methodology for performing both host and network-based intrusion analysis. Next, you'll learn about the importance of implementing security management and incident response strategies in an enterprise organization. As you advance, you'll see why implementing defenses is necessary by taking an in-depth approach, and then perform security monitoring and packet analysis on a network. You'll also discover the need for computer forensics and get to grips with the components used to identify network intrusions. Finally, the book will not only help you to learn the theory but also enable you to gain much-needed practical experience for the cybersecurity industry. By the end of this Cisco cybersecurity book, you'll have covered everything you need to pass the Cisco Certified CyberOps Associate 200-201 certification exam, and have a handy, on-the-job desktop reference guide.
Table of Contents (25 chapters)
1
Section 1: Network and Security Concepts
5
Section 2: Principles of Security Monitoring
9
Section 3: Host and Network-Based Analysis
14
Section 4: Security Policies and Procedures
21
Chapter 17: Mock Exam 1
22
Chapter 18: Mock Exam 2

Delving into the Linux filesystem

The Linux operating system uses the EXT, which has many features, as well as providing speed and performance for the operating system. There are a few versions of EXT and, as a cybersecurity professional, it's beneficial to understand the characteristics of each one. Let's have a look at the different versions here:

  • EXT2: This version was originally the default filesystem for any distribution of the Linux operating system. Today, it still is the preferred choice for some flash-based storage devices, even though it does not support journaling.

    Important note

    Journaling is a feature that improves performance and reduces the number of times data is written to an HDD or a SDD. By reducing the number of times data is written to a drive, it increases the lifespan of the drive itself.

  • EXT3: EXT3 supports journaling, which is designed to provide improved performance. With journaling added to EXT3, this reduces the risk of a filesystem...