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Introduction to Computer Security
By Chuck Easttom
Nov 15, 2019

In this sample chapter from Computer Security Fundamentals, 4th Edition, you will learn how to identify the top threats to a network: security breaches, denial of service attacks, and malware.

Introduction to Help Desk Support Roles
By Darril Gibson
Nov 19, 2014
This chapter from Effective Help Desk Specialist Skills introduces the support center, help desk professionals, users, and incidents (or problems) in four major sections: Understanding the Support Center, The Role of the Help Desk Professional, Understanding Users, and Typical Incident Process.
Introduction to the World of IT
By Cheryl A. Schmidt, Christopher Lee
Feb 25, 2026
Introduction to the World of IT
By Christopher Lee, Cheryl A. Schmidt
Oct 25, 2022

Many IT roles require detailed knowledge of PC hardware and software. In this sample chapter from Complete A+ Guide to IT Hardware and Software: CompTIA A+ Exams 220-1101 & 220-1102, 9th Edition, you will explore what skills a computer technician needs to perform well on the job, plus exam preparation tips for the CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102).

It's Hard to Overstate the Value of Good Communication Skills in IT
By Ed Tittel
Mar 14, 2015
Ed Tittel discusses the value of oral and written communication "soft skills" in the IT workplace, and suggests resources to help you improve your skills.
Linux File Management Basics
By Ross Brunson, Sean Walberg
Jan 13, 2016
This chapter from CompTIA Linux+ / LPIC-1 Cert Guide: (Exams LX0-103 & LX0-104/101-400 & 102-400) covers Linux file system management as it pertains to the objectives on the CompTIA Linux+ / LPIC-1 exam.
Manage Software Configurations
By William Rothwell
Jan 9, 2023

This chapter from CompTIA Linux+ XK0-005 Exam Cram covers XK0-005 Objective: 1.7: Given a scenario, manage software configurations.

Managing and Understanding the Boot Procedure
By Sander van Vugt
Nov 18, 2021

In this sample chapter from Red Hat RHCSA 8 Cert Guide: EX200, 2nd Edition, you will learn about Systemd targets and how the boot procedure on Red Hat Enterprise Linux is organized.

Managing Group Accounts in Ubuntu
By William Rothwell, Denise Kinsey
Oct 21, 2018
Work through labs that demonstrate how to manage group accounts, including how to add, modify, and delete groups, on the Ubuntu operating system.
Mobile App Investigations
By Darren R. Hayes
Oct 1, 2020

In this sample chapter from A Practical Guide to Digital Forensics Investigations, 2nd Edition, you will explore the importance of mobile apps in investigations, learn how to perform a static and dynamic analysis, analyze SQLite databases, and more.

Mobile Device Accessories and Ports
By Dave Prowse
Sep 24, 2022

This sample chapter from CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Exam Cram, covers A+ 220-1101 Objective 1.3: Given a scenario, set up and configure accessories and ports of mobile devices.

Network Implementation of Protocols and Services
By Diane Barrett, Kirk Hausman, Martin Weiss
Mar 10, 2015
This chapter from CompTIA Security+ SY0-401 Exam Cram, 4th Edition discusses how to use the proper network implementation of protocols and services as a tool to protect and mitigate threats against network infrastructure based on organizational needs. It also has a section specifically dedicated to wireless security implementation based on organization requirements.
Network Implementations
By Emmett Dulaney
Oct 12, 2021

In this sample chapter from CompTIA Network+ N10-008 Exam Cram, 7th Edition, you will learn how to compare and contrast various devices, their features, and their appropriate placement on the network.

Network Perimeter Security
By David Prowse
Feb 21, 2018

In this sample chapter from CompTIA Security+ SY0-501 Cert Guide, Academic Edition, 2nd Edition, explore one of the most strategic pieces in your network security design—the firewall.

Network Topologies, Architectures, and Types
By Emmett Dulaney
Dec 27, 2024
Operating System Hardening
By William Easttom
Dec 24, 2023

In this sample chapter from Network Defense and Countermeasures, 4th Edition, you will learn how to configure Windows and Linux systems for secure operations, apply operating system patches and application patches, and securely configure a web browser.

Physical and Environmental Security
By Omar Santos
Jan 9, 2019

In this sample chapter from Developing Cybersecurity Programs and Policies, 3rd Edition, you will explore design, obstacles, monitoring, and response as they relate to secure areas, equipment security, and environmental controls.

Physical Interfaces and Cabling Types
By Anthony J. Sequeira
Aug 19, 2020

In this sample chapter from CCNA 200-301 Exam Cram, 6th Edition, you will review essential terms and components of the Network Fundamentals section of the CCNA 200-301 exam, including ethernet, copper media, unshielded twisted pair (UTP), fiber media, Cat 5e, Cat 6, Auto MDI-X, and PoE.

PL/SQL Concepts
By Benjamin Rosenzweig, Elena Rakhimov
Jul 3, 2023
Planning and Designing 802.11 Wireless Technologies
By Roger Nobel, Federico Lovison, Fabian Riesen, Erik Vangrunderbeek, Federico Ziliotto
May 16, 2012
On top of normal networking issues, WLAN adds a couple of new challenges, such as Layer 1 (radio frequency [RF]) issues; a set of L2 protocols, such as IEEE 802.11; and the need for agencies to regulate the use of this shared medium, as the authors explain in this excerpt from their book, CCIE Wireless Exam (350-050) Quick Reference.

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