1141. Which of the following is called when collection of various computers seems a single coherent system to its client ?

A. Computer network
B. Distributed system *
C. Both A and B
D. None of the mentioned

1142. In which type of following signal the bit rate always equals the baud rate ?

A. FSK *
B. QAM
C. 4-PSK
D. PSK

1143. On the top of another network _______ is built ?

A. Prior network
B. Chief network
C. Prime network
D. Overlay network *

1144. Nodes in a computer network are :

A. The computer that originates the data
B. The computer that routes the data
C. The computer that terminates the data
D. All of the mentioned *

1145. Communication channel is shared by all the machines on the network in :

A. Broadcast network *
B. Unicast network
C. Multicast network
D. None of the mentioned

1146. Blutooth is an example of :

A. Personal area network *
B. Local area network
C. Virtual private network
D. None of the mentioned

1147. A _______ is a device that forwards packets between networks by processing the routing information included in the packet :

A. Bridge
B. Firewall
C. Router *
D. All of the mentioned

1148. A list of protocols used by a system , one protocol per layer is called :

A. Protocol architecture
B. Protocol stack *
C. Protocol suit
D. None of the mentioned

1149. Network congestion occurs :

A. Incase of traffic overloading *
B. When connection between two nodes terminates
C. When a system terminates
D. None of the mentioned

1150. Which one of the following extends a private network across public networks ?

A. Local area network
B. Virtual private network *
C. Enterprise private network
D. Storage area network