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

Secure Network Architecture Concepts

Securing networks and protecting them is vital to protect a company's assets. We use different zones and topologies, network separation and segmentation, and install firewalls to prevent unauthorized access to the network. First of all, let's look at different zones and topologies. There are three main zones - LAN, WAN, and DMZ:

  • Local Area Network (LAN): A secure network with very fast links and a web server, called the intranet, that holds internal-only information, such as classified data, manufacturing price lists, or the internal forms library.
  • Demilitarized Zone (DMZ): A boundary layer between the LAN and the WAN that holds information that companies may want people from the internet to access. You may put your email server in the DMZ but never a domain controller. The web server inside the DMZ is called the extranet, which...