When the crosstalk is detected on the same end of the cable that generated the signal, then near-end crosstalk has occurred. NEXT is most common within 20 to 30 meters (60 to 90 feet) of the transmitter. The below image clearly describe the near-end crosstalk. Crosstalk on poorly designed or poorly installed cables is a major problem with technologies such as 10Base-T and 100Base-TX. [...]

A network administrator is responsible for assigning which devices receive  which IP addresses in a corporate network. The admin assigns an IP address to  a device in one of two ways: by configuring the device with a specific address  or by letting the device automatically learn its address from the network.  Dynamic Host Configuration Protocol (DHCP) is the protocol used for [...]

Twisted pair cables consist of copper wires of small diameters which are usually less than 0.1 inch for telephone, in-house, and office applications. Within a plastic covering shield, there are many individually insulated copper wires twisted with each other in pairs. Two wires in a tightly twisted pair experience almost the same physical environment. Therefore, radio emission and noise pickup [...]

For computers to send and receive information to each other, they must have some form of addressing so that each end device on the network knows what information to read and what information to ignore. This capability is important both for the computers that ultimately use the information and for the devices that deliver information to end stations, such as switches and routers. Every computer on [...]

We have previously told you about the OSI (Open System Interconnection) Layer Model and today we are going to guide you about how a commendation take place between the OSI Layers. As we all know that each layer of the OSI model uses its own protocol to communicate with its peer layer in the destination device. The OSI model specifies how each layer communicates with the layers above and below it, [...]

For intelligent communication to take place at the Physical layer, the transmitter and the receiver must be synchronized—that is, the receiver must know when to sample the channel to detect the presence of a valid signaling event. If the receiver samples too soon or too late, erroneous data will result. In such cases, 0s may be falsely interpreted as 1s and vice versa. The following discussion [...]

As probably all organization trying to change their business plans according to the growing nature of technology. Similarly Holiday Inn hotel (the whole chain) has introduced a new scheme to their customers by which they will be able to do key less entry for their hotel rooms by using Smartphone. Yet this scheme has been tested out in different hotels in USA, which includes Chicago and Houston [...]