Book Image

Certified Ethical Hacker (CEH) v12 312-50 Exam Guide

By : Dale Meredith
Book Image

Certified Ethical Hacker (CEH) v12 312-50 Exam Guide

By: Dale Meredith

Overview of this book

With cyber threats continually evolving, understanding the trends and using the tools deployed by attackers to determine vulnerabilities in your system can help secure your applications, networks, and devices. To outmatch attacks, developing an attacker's mindset is a necessary skill, which you can hone with the help of this cybersecurity book. This study guide takes a step-by-step approach to helping you cover all the exam objectives using plenty of examples and hands-on activities. You'll start by gaining insights into the different elements of InfoSec and a thorough understanding of ethical hacking terms and concepts. You'll then learn about various vectors, including network-based vectors, software-based vectors, mobile devices, wireless networks, and IoT devices. The book also explores attacks on emerging technologies such as the cloud, IoT, web apps, and servers and examines prominent tools and techniques used by hackers. Finally, you'll be ready to take mock tests, which will help you test your understanding of all the topics covered in the book. By the end of this book, you'll have obtained the information necessary to take the 312-50 exam and become a CEH v11 certified ethical hacker.
Table of Contents (23 chapters)
1
Section 1: Where Every Hacker Starts
10
Section 2: A Plethora of Attack Vectors
15
Section 3: Cloud, Apps, and IoT Attacks
20
Chapter 17: CEH Exam Practice Questions

Understanding the three-way handshake

Let's talk about how polite computers are when it comes to communicating with each other, shall we? So, part of the scanning concept is understanding what they refer to as the three-way handshake. Again, it's very polite.

Mike O'Cain, who is an American football coach and former player, once said I don't remember who came up with the handshake idea, but it was a great one.

This is true because there are some advantages when it comes to the three-way handshake and computers.

To understand the three-way handshake, you must get your geek on. You need to understand what's going on in the background. To cover this in a way that makes sense, we'll look at TCP and UDP communications. We'll also look at the different flags that a TCP header has. After that, we'll look at the extremely normal three-way handshake and ensure you understand the communication that goes on between computers as they're about...