Difference between the communication and transmission.Transmission is a physical movement of information and concern issues like bit polarity, synchronisation, clock etc.Communication means the meaning full exchange of information between two communication media.
Signals are usually transmitted over some transmission media that are broadly classified in to two categories.Guided Media:These are those that provide a conduit from one device to another that include
Latest Answer : 1) Guided media: Coax, Twisted-pair, Fibre etc2) Unguided media: Wireless ...
In a baseband transmission, the entire bandwidth of the cable is consumed by a single signal. In broadband transmission, signals are sent on multiple frequencies, allowing multiple signals to be sent simultaneously.
Latest Answer : Broadband refers to signaling method which includes a relatively wide range of frequencies butBaseband refers to only one type signaling method using a relatively medium's full bandwidth. ...
BUS topology:In this each computer is directly connected to primary network cable in a single line.Advantages:Inexpensive, easy to install, simple to understand, easy to extend.STAR topology:In this all
Latest Answer : There are five topologies for networks 1. Ring Topology 2. Star Topology. 3. Bus Topology. 4. Mess Topology. 5. Hybrid Topology.Now a days we are using EXTENDED STAR topology. It is fast & reliable topology. ...
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 for passive topology - linear bus.
Latest Answer : 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 for passive topology - linear bus. ...
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, regenerates the original bit pattern
Latest Answer : Different type of networking / internetworking devicesRepeater: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, regenerates the original bit pattern ...
The degeneration of a signal over distance on a network cable is called attenuation.
Latest Answer : When we transmit any signal, the signal strength is degraded because of losses, interference, this is called attenuation of the signal. To reduce attenaution, repeaters are used to boost the signal strength.cheersrupesh ...
Difference between bit rate and baud rate.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 bits.baud rate = bit rate / N where N is no-of-bits represented by each signal shift.
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, at the network layer the data unit created
Latest Answer : data unit in application layer is called data or message.data unit in transport layer is called segment.data unit in network layer is called packet.data unit in data link layer is called frame.data unit in physical layer is ...
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 address of another host on its network
Latest Answer : The adress resolution protocol (ARP) associates an IP address with the physical adress. On a typical physical network (eg: LAN) each device on a link is identified by a physical or station adress usually imprinted on the network interface card(NIC)Physical ...
