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In this sample chapter from CompTIA A+ Core 1 (220-1001) and Core 2 (220-1002) Cert Guide, 5th Edition, you will review exam objectives related to security, including physical security measures, logical security concepts, wireless security protocols and authentication, social engineering threats and vulnerabilities, best practices to secure a workstation, and more.

Test your knowledge with a free set of test questions from CompTIA A+ Practice Questions Exam Cram Core 1 (220-1001) and Core 2 (220-1002).

In this sample chapter from CompTIA Linux+ Portable Command Guide: All the commands for the CompTIA XK0-004 exam in one compact, portable resource, 2nd Edition, explore security commands and, given a scenario, apply or acquire the appropriate user and/or group permissions and ownership.

In this sample chapter from CompTIA A+ Core 1 (220-1001) and Core 2 (220-1002) Exam Cram, learn how to compare and contrast characteristics of various types of mobile devices, and how to connect and configure accessories.

In this sample chapter from CompTIA IT Fundamentals+ FC0-U61 Cert Guide, you will learn how to compare and contrast fundamental data types and their characteristics: char, strings, numbers (integers and floats), and Boolean.

In this sample chapter from CompTIA PenTest+ PT0-001 Cert Guide, you will learn how to take advantage of insecure services and protocol configurations during a penetration testing engagement.

In this sample chapter form CISSP Cert Guide, 3rd Edition, you will review assessment and testing strategies, security control testing, collection of security process data, analysis and reporting of test outputs, and internal, external, and third-party audits.

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.

In this sample chapter from CompTIA Network+ N10-007 Cert Guide, explore the seven layers of the Open Systems Interconnection (OSI) reference model.

Ethical hacking is a form of legal hacking done with the permission of an organization to help increase its security. In this sample chapter from Certified Ethical Hacker (CEH) Version 9 Cert Guide, 2nd Edition, explore the fundamental principles of the security triad—confidentiality, integrity, and availability.

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.

In this sample chapter from CompTIA Security+ SY0-501 Exam Cram, 5th Edition, learn how to support organizational security through the installation and configuration of network components—both hardware and software-based.

In this sample chapter from Storage Design and Implementation in vSphere 6: A Technology Deep Dive, 2nd Edition, learn how to identify various ALUA (Asymmetric Logical Unit Access) configurations and how different configurations affect the hosts.

This sample chapter from CompTIA Linux+/LPIC-1 Portable Command Guide provides information and commands on a variety of topics including cat, cut, expand, fmt, head, join, less, nl, od, paste, and more.

In this chapter from CISSP Exam Cram, 4th Edition, Michael Gregg explains the importance of basic security principles that help protect data while it is in transit, in storage, and at rest.

In this chapter from Complete CompTIA A+ Guide to IT Hardware and Software, 7th Edition, Cheryl A. Schmidt explores the importance of motherboard components, their purpose, and properties.