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

Interpreting basic regular expressions

As you have read thus far, all the networking and security solutions and devices on an enterprise network gather data and generate logs about the traffic within an organization. Even end devices such as the employees' computers and servers create log messages about each transaction that occurs on the system. These log files can become very large in size as more log messages are written to them.

As a cybersecurity professional, if you are given the task of finding a certain event within a large set of data, going through it can be very time-consuming, involving a lot of manual work. However, there are various types of regexes that we can use to help us filter large quantities of data and quickly obtain specific results.

To get a better understanding of the importance and use of basic regexes, imagine you want to find a person's landline telephone number using a traditional telephone directory. If you recall, years ago, these traditional...