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 ...
What is the Internet of Things?
The Internet of Things (IoT) refers to the world of interconnected devices which provide data, and are being controlled across the Internet. Examples include many home automation devices, like smart thermostats and remotely controllable lighting fixtures, and countless others. More ...
Fiber Broadband Internet Service
Fiber broadband is the optical fiber, which replaces all or part of the usual metal local loops used for the final leg of delivering connectivity in telecommunications. With optical fiber technology it is likely that speeds that are considered to be broadband could
change in coming times. More ...
What is a Proxy Server?
A Proxy Server is a piece of software that works at the Application layer of the OSI model to increase the security of a network. A proxy server acts as an intermediary between the internal network and external networks. More ...
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 ...
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 ...
Satellite Broadband Internet Service
Satellite broadband internet service transmits and receives signals between a ground dish antenna and a geosynchronous satellite. A geosynchronous satellite orbits the Earth with a period equal to the Earth's rotational period and therefor appears motionless, at a fixed position in the sky. More ...
Computer Number Systems Made Simple
Humans use a decimal based number system. The decimal numbering system uses the ten characters 0,1,2,3,4,5,6,7,8, and 9 to represent numbers. The binary system used by computers has only two characters; 0 and 1. 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 a Network Sniffer Used For?
Sniffer is another word for network analyzer. Network intruders use sniffing to capture confidential information, and the terms sniffing and eavesdropping are often associated with this practice. 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 ...
Fiber Optic Cabling For Beginners
Traditionally, twisted pair copper cable has been the most common form of network cabling. As technology continues to advance however, fiber optic cable is quickly becoming the standard in network cabling. 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 ...
