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WAN Technologies: Important Points of Interest, Part 1 of 3
By Sean Wilkins
Dec 29, 2015
In the first article of a three-part series, Sean Wilkins, co-author of CCNA Routing and Switching 200-120 Network Simulator, Academic Edition, provides an overview of some of the wide area networking (WAN) technologies that network engineers need to know to get that first job in the industry, or to move up in their chosen field.
Video: CompTIA A+ (220-901): Diagnostics and Monitoring
By David L. Prowse
Dec 28, 2015
In this excerpt from CompTIA A+ 220-901 Complete Video Course, David Prowse discusses diagnostics and monitoring, including CPU and motherboard temperature, fan speeds, and voltages.
Video: CompTIA A+ (220-901) Complete Video Course - An Introduction to Module 1: Hardware
By David L. Prowse
Dec 25, 2015
In this excerpt from CompTIA A+ 220-901 Complete Video Course, David Prowse introduces Module 1 on hardware and discusses the topics covered in this module, including motherboard components, the CPU, RAM, PC expansion cards, and more.
Video: CompTIA A+ (220-901) - PC Build: Power
By David L. Prowse
Dec 23, 2015
In this excerpt from CompTIA A+ 220-901 Complete Video Course, David Prowse shows you how to install your power supply into the case of your computer when building your PC.
Video: CCNA Security 210- 260: Configuring IOS for Device Admin with ACS
By Omar Santos, Mason Harris, Aaron Woland
Dec 21, 2015
In this excerpt from CCNA Security 210-260 Complete Video Course, Aaron Woland discusses configuring IOS for device administration using ACS.
Video: CCNA Security 210-260: IPS Configuration Basics: Rules and Detection Methods
By Omar Santos, Mason Harris, Aaron Woland
Dec 17, 2015
In this excerpt from CCNA Security 210-260 Complete Video Course, Mason Harris discusses rules and detection methods for IPS configuration methods, including false positives and negatives, types of methods for IDS/IPS detection, and signature-based, policy-based, anomaly-based, and reputation-based IDS/IPS rules.
Video: LPIC-1 Exam 102: Working witih Read and Arguments
By Sander van Vugt
Dec 17, 2015
There are two generic solutions to make a script interactive: read and arguments. In this excerpt from LPIC-1 (Exam 102) LiveLessons: Linux Professional Institute Certification Exam 102, Sander van Vugt discusses both read and arguments.
Video: CCNA Security 210-260 Complete Video Course: An Introduction
By Omar Santos, Mason Harris, Aaron Woland
Dec 16, 2015
In this excerpt from CCNA Security 210-260 Complete Video Course, the authors introduce their video course and discuss what they will cover.
Video: LPIC-1 Exam 102: Understanding Routing
By Sander van Vugt
Dec 16, 2015
In this excerpt from LPIC-1 (Exam 102) LiveLessons: Linux Professional Institute Certification Exam 102, Sander van Vugt discusses routing and how routers work.
Video: CCNA Security 210-260: Configuring IPsec Site-to-Site VPNs in Cisco ASA
By Omar Santos, Mason Harris, Aaron Woland
Dec 14, 2015
In this excerpt from CCNA Security 210-260 Complete Video Course, Omar Santos shows you how to create a site-to-site VPN tunnel between R1 and the Cisco ASA.
Video: LPIC-1 Exam 102: Creating an Example Database and Basic Data Manipulation
By Sander van Vugt
Dec 14, 2015
In this excerpt from LPIC-1 (Exam 102) LiveLessons: Linux Professional Institute Certification Exam 102, Sander van Vugt shows you how to install and create a database and then manipulate the data, in order to help you pass the LPIC-1 Exam 102.
Video: CCNA Security 210-260 Complete Video Course: An Overview
By Omar Santos, Mason Harris, Aaron Woland
Dec 10, 2015
In this excerpt from CCNA Security 210-260 Complete Video Course, Aaron Woland, Mason Harris, and Omar Santos introduce themselves and discuss what you will learn in this course, including BYOD, mobile device management, Cisco ACS, pros and cons of different types of security devices, attack methods, and configuring and troubleshooting SSL and IPSec VPN, among many other topics.
Video: ITIL Foundation Exam: Transition Planning & Support
Dec 9, 2015
In this excerpt from ITIL Foundation Exam LiveLessons, Jill Knapp discusses transition planning and support in ITIL, the purpose of which is to provide overall planning for service transitions and to coordinate the resources that they require.
TACACS+ vs. RADIUS: Similarities and Differences
By Sean Wilkins
Dec 8, 2015
If you're responsible for the security of your organization's network, it's important to examine all the possibilities. Sean Wilkins, co-author of CCNA Routing and Switching 200-120 Network Simulator, examines these two long-time AAA favorites, discussing how they protect your network's vital resources.
Video: OCA Java SE 8 Programmer I (1Z0-808): Understanding Integer Primitive Types Literal Forms
By Simon Roberts
Dec 7, 2015
In this excerpt from OCA Java SE 8 Programmer I (1Z0-808) Complete Video Course, Simon Roberts looks at the formats of literal values that represent integers.
Video: OCA Java SE 8 Programmer I (1Z0-808): Using Common String Methods to Perform Comparisons
By Simon Roberts
Dec 4, 2015
In this excerpt from OCA Java SE 8 Programmer I (1Z0-808) Complete Video Course, Simon Roberts takes a look at some of the string methods that perform comparisons.
Network Address Translation (NAT) Implementation Methods
By Sean Wilkins
Dec 1, 2015
Have you ever adjusted to a new area code or ZIP code? Everyone needs unique phone numbers and addresses, which is a struggle for the phone companies and the post office. The Internet has the same growing pains on a planetary scale, with everyone's Net-connected devices needing unique IP addresses. Sean Wilkins, co-author of CCNA Routing and Switching 200-120 Network Simulator, explains how Network Address Translation makes it possible for all of us and our gadgets to communicate.
Video: CCNA Wireless 200-355: Encryption
By Jerome Henry
Nov 30, 2015
In this excerpt from CCNA Wireless 200-355 Complete Video Course, Jerome Henry discusses an important security component of Wi-Fi: encryption.
Video: CCNA Wireless 200-355: RF Characteristics - Frequency, Amplitude, Phase, Wavelength
By Jerome Henry
Nov 26, 2015
To work with Wi-Fi, you need to understand how waves work. In this excerpt from CCNA Wireless 200-355 Complete Video Course, Jerome Henry discusses RF characteristics: frequency, amplitude, phase, and wavelength.
Inner Workings of the Domain Name System (DNS)
By Sean Wilkins
Nov 24, 2015
When you type an address into a browser and hit Enter, you expect to arrive at the intended website. Without the Domain Name System (DNS), that wouldn't happen. Whether simple or very complex, networks worldwide rely on the DNS to connect client and target. Sean Wilkins, co-author of CCNA Routing and Switching 200-120 Network Simulator, explains how DNS connects one person or server with another, and why you need to know about this undervalued service.

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