Packet Switching Store-and-Forward Transmission
To send a message from a source end system to a destination end system, the source breaks long messages into smaller chunks of data known as packets. Most packet switches use store-and-forward transmission at the inputs to the links. Store-and-forward transmission means that the packet switch must receive the entire packet before it can begin to transmit the first bit of the packet onto the outbound link. More ...
Cellular WAN (Wide Area Network) or Mobile Broadband
Mobile Broadband allows you to get Internet access from anywhere within the range of cell tower. The data speeds of cellular modems has advanced rapidly over the years. Today's 4G (fourth generation) cellular mobile communications can provide data rates up to 100 Mbps. 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 ...
What is DNS?
Have you ever wondered what happens when you enter, or click on, a web address in your browser? How does your computer connect to the Web site you requested? Part of what makes that happen is the Internet's Domain Name Service (DNS). More ...
Workgroups and Domains
A LAN can be configured as a workgroup or a domain. In a workgroup a user's login account is located on their individual computer. In a domain, a user's login account is located on the domain controller. More ...
Virtualization For Dummies Cheat Sheet
Virtualization is the process of using a program to abstract a computer's resources in order to create multiple isolated virtual servers, each virtual server which can run its own operating systems independently. Virtualization saves money, energy, and space. Get to know some important terms about virtualization, types of virtualization, and leading companies and products in virtualization. More ...
Cisco-Linksys Network Magic Pro
Having trouble connecting your devices together and to the Internet, or printing from any computer? With Cisco Network Magic Pro, you can avoid lengthy, tech support phone calls, hard to navigate online forums and expensive on-site consultants. It provides do-it-yourself tools for setting up, managing and securing your network. More ...
Network Patch Panel Basics
Patch panels are used to organize the network cables. Each socket on the front of the patch panel is usually labeled with the identity of the device connected on its punch down connector on the back of the panel. 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 is Cloud Computing?
You can't be sure where a specific Internet device is, it's just out there in the cloud of devices that is the Internet. An individual connected to the Internet can use an application that's in the cloud. An organization can place their data in the cloud. 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 ...
Best CompTIA Network+ Certification Exam Preparation Materials
There's a lot of CompTIA Network+ study and exam preparation materials out there, The ones I've presented here are the some of the best materials available. Most importantly they all come with computer based practice exams. 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 ...
