a. The mode of transmission in which communication takes place from both the sides simultaneously.
ans : Full Duplex mode of Communication
b. A computer network limited within a room .
ans: PAN(Personal Area Network)
c. The interconnection between two or more computers through physical and logical components to share resources.
ans:Computer Networks
d. The set of rules and procedures that makes the communication possible among different computers in network.
ans: Protocols
e. The computer that acts as the central authority on a network.
ans: Server
f. The computer on which user runs applications.
ans: Client
g. The amount of data that can be transmitted through communication channels in a fixed time period.
ans: Bandwidth
h. A network which is extended beyond the boundary of countries.
ans: Wide Area Network(WAN)
i. A device with multiple ports that joins multiple computers together.
ans: Switch
j. The software which controls and manages all the operation in computer network.
ans: Network Operating System(NOS)
k. The computer that controls and coordinates all the activities of the entire computer in a network.
ans: Server Computer
l. The physical interface between cabling and network node.
ans: Network Topology
m. The topology in which all the computers are connected by a common distribution channel.
ans: Bus Topology
n. The device which accepts weak signals regenerates them and sends them back on their way.
ans: Repeater
o. The topology in which all the computers are connected to each other in a closed circular loop.
ans: Ring Topology
p. A communication media which use light to carry a data signal through the cable.
ans: Fibre Optic Cable
q. The physical layout or cabling structure of computer on Local Area Network.
ans: Network Topologies.
r. The device that connects communications media with network devices.
ans: Media Connectors
s. An intelligent device that connects two different networks by setting best network traffics.
ans: Switch
t. The device which connects similar networks having same protocols.
ans: Router
If you have any doubt, let me know...