The Trivial File Transfer Protocol (TFTP) allows a local host to obtain files from a remote host but does not provide reliability or security. It uses the fundamental... Read more »
Class AÂ 0.0.0.0Â -127.255.255.255 Class BÂ 128.0.0.0-191.255.255.255 Class CÂ 192.0.0.0-223.255.255.255 Class DÂ 224.0.0.0- 239.255.255.255 Class EÂ 240.0.0.0-247.255.255.255Â Read more »
The address resolution protocol (ARP) is used to associate the 32 bit IP address with the 48 bit physical address, used by a host or a router to find the physical... Read more »
The data unit created at the application layer is called a message, at the transport layer the data unit created is called either a segment or an user datagram,... Read more »
ICMP is Internet Control Message Protocol, a network layer protocol of the TCP/IP suite used by hosts and gateways to send notification of datagram problems back... Read more »
Repeater:Also called a regenerator, it is an electronic device that operates only at physical layer. It receives the signal in the network before it becomes weak,... Read more »
The data unit in the LLC level is called the protocol data unit (PDU). The PDU contains of four fields a destination service access point (DSAP), a source service... Read more »
It is a project started by IEEE to set standards to enable intercommunication between equipment from a variety of manufacturers. It is a way for specifying functions... Read more »
Signals are usually transmitted over some transmission media that are broadly classified in to two categories. a)Guided Media:These are those that provide a conduit... Read more »
Every line has an upper limit and a lower limit on the frequency of signals it can carry. This limited range is called the bandwidth Read more »
 Bit rate is the number of bits transmitted during one second whereas baud rate refers to the number of signal units per second that are required to represent those... Read more »
The address for a device as it is identified at the Media Access Control (MAC) layer in the network architecture. MAC address is usually stored in ROM on the network... Read more »
A layer of a glass surrounding the center fiber of glass inside a fiber-optic cable. Read more »
A gateway operates at the upper levels of the OSI model and translates information between two completely different network architectures or data formats Read more »
When the computers on the network simply listen and receive the signal, they are referred to as passive because they don’t amplify the signal in any way. Example... Read more »