Network Servers
A server is a computer in a client/server network that provides services or roles on a network and provides a central location for administration of the network. More ...
Turning Your Home into a Wi-Fi Network
Creating a customized home Wi-Fi network is a great weekend project that you can accomplish with some patience and the proper tools. Before you dive into the wireless world, make sure you know what lies ahead of you. More ...
Network+ Certification Exam Tutorial - How And When To Use Virtual LANs (VLANs)
From your Network+ exam studies, you know that switches forward broadcasts, and that sounds great, but that's not always a good thing. A switch can have anywhere from 12 ports to 80 or more, and by default all hosts connected to that switch are going to be in the same broadcast domain. More ...
Media Access Control (MAC) Sublayer of the OSI Data Link Layer
Layer 7 of the OSI model, the Data Link layer, is concerned with the packaging of data into frames and placing those frames on the network. The Data Link layer actually consists of two sublayers, the Media Access Control layer, described here, and the Logical Link layer. More ...
Network Cabling For Beginners
Cabling is the foundation of your network, it is the medium that connects all your computers and servers together and is probably one of the most important and often overlooked items in business networks. More ...
NRZ, NRZI, Manchester Encoding, What Does it Mean?
NRZ (Non-Return-to-Zero), NRZI (Non-Return-to-Zero Inverted), and Manchester Encoding are terms for the shapes and voltage levels of digital electronic signals. This article also explains Manchester decoding. More ...
Servers - Racks, Blades and Towers
Unlike tower servers, offices that use rack servers which traditionally come in 1U, 2U, 3U, 4U or 6U are installed in racks. The numbers that give names to the rack mounted servers precisely indicate the number of Us they occupy in the racks. More ...
Network Administrator Street Smarts: A Real World Guide to CompTIA Network+ Skills
Hit the ground running with the street-smart training you'll find in this practical book. Using a "year in the life" approach, it gives you an inside look at network administration, with key information organized around the actual day-to-day tasks, scenarios, and challenges you'll face in the field. More ...
Network Know-How: An Essential Guide for the Accidental Administrator
This book is a straight to the point description of networks, what they do, how they operate, and how to manage them. The book is largely free of jargon and arcane, obscure terminology. The author does a good job of laying out the essentials in an easy to understand format. More ...
Synchronous, Asynchronous, Isochronous. What Does it Mean?
Synchronous, Asynchronous and Isochronous are all methods used to transfer streams of data. This article uses waveform diagrams to explain the difference. More ...
What is an Ethernet Crossover Cable?
When connecting two computers together without a switch or router in between you need a special cable, called a crossover cable, that has the transmit wire pair swapped with the receive wire pair. More ...
Bluetooth in Brief
Bluetooth is a wireless technology designed for short range data communications. Two or more Bluetooth devices establish a connection and form a small wireless network known as a Piconet. More ...
What Routers Do
A router is a networking device that connects different networks. Routers direct the traffic on the Internet. Without routing every network space is isolated. More ...
