1. When collection of various computers seems a single coherent system to its client, then it is called

a) computer network
b) distributed system
c) both (a) and (b)
d) none of the mentioned

2. Two devices are in network if

a) a process in one device is able to exchange information with a process in another device
b) a process is running on both devices
c) PIDs of the processes running of different devices are same
d) none of the mentioned

3. Which one of the following computer network is built on the top of another network?

a) prior network
b) chief network
c) prime network
d) overlay network

4. In computer network nodes 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

5. 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

6. Bluetooth is an example of

a) personal area network
b) local area network
c) virtual private network
d) none of the mentioned

7. 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

8. 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

9. Network congestion occurs

a) in case of traffic overloading
b) when a system terminates
c) when connection between two nodes terminates
d) none of the mentioned

10. 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