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

DoS threats

DoS threats are among the most common threats faced by organizations. A DoS attack can be mounted against any organization, regardless of size or industry.

There are many different types of DoS attacks, but all have the same goal: to prevent legitimate users from accessing the organization's resources. Some of the most common types of DoS attacks include the following:

  • Flooding attacks—In a flooding attack, the attacker sends a large number of requests to the organization's servers, overwhelming them and preventing legitimate users from accessing the resources they need.
  • SYN floods—A synchronize (SYN) flood occurs when the attacker sends a large number of SYN packets to the organization's servers. Because the request is not complete, the servers are unable to send a SYN-ACK message, where ACK stands for acknowledgment. The servers become overwhelmed and legitimate users cannot access them.
  • Application layer assaults—...