Book Image

CompTIA Security+ Certification Guide

By : Ian Neil
Book Image

CompTIA Security+ Certification Guide

By: Ian Neil

Overview of this book

CompTIA Security+ is a worldwide certification that establishes the fundamental knowledge required to perform core security functions and pursue an IT security career. CompTIA Security+ Certification Guide is a best-in-class exam study guide that covers all of CompTIA Security+ 501 exam objectives. It is authored by Ian Neil, who is a world-class trainer of CompTIA Security+ 501. Packed with self-assessment scenarios and realistic exam questions, this guide will help you master the core concepts to succeed in the exam the first time you take it. Using relevant examples, you will learn all the important security fundamentals from Certificates and Encryption to Identity and Access Management concepts. You will then dive into the important domains of the exam; namely, threats, attacks and vulnerabilities, technologies and tools, architecture and design, risk management, and cryptography and Public Key Infrastructure (PKI). This book comes with over 600 practice questions with detailed explanation that is at the exam level and also includes two mock exams to help you with your study plan. This guide will ensure that encryption and certificates are made easy for you.
Table of Contents (18 chapters)
12
Mock Exam 1
13
Mock Exam 2
15
Acronyms

Wireless Encryption

So that we can secure our wireless network, we need to choose a form of encryption, ranging from WEP, which is the weakest, to WPA2—CCMP, which is the strongest. Let's look at each of these in turn:

  • Wired Equivalent Privacy (WEP): WEP is the weakest form of wireless security, with a 40-bit key that is very easy to crack.
  • Wi-Fi Protected Access (WPA): WPA replaced WEP as it uses the Temporal Key Integrity Protocol (TKIP), which was designed to be more secure than WEP. WPA is backward compatible with WEP. TKIP is backward compatible with legacy wireless encryption.
  • Wi-Fi Protected Access version 2 (WPA2): WPA2 is much stronger than WPA and there are two main versions—one for the home user and the other for the corporate:
    • WPA2-Pre-Shared Key (WPA2–PSK): WPA2-PSK was introduced for the home user who does not have an enterprise setup...