Computer Networks Questions & Answers – Basics – 2
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) networking system
d) none of the mentioned
a) computer network
b) distributed system
c) networking system
d) none of the mentioned
Answer: b
Explanation: Computer networks is defined as a collection of interconnected computers which uses a single technology for connection.
A distributed system is also the same as computer network but the main difference is that the whole collection of computers appears to its users as a single coherent system
Example :- World wide web
Explanation: Computer networks is defined as a collection of interconnected computers which uses a single technology for connection.
A distributed system is also the same as computer network but the main difference is that the whole collection of computers appears to its users as a single coherent system
Example :- World wide web
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
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
Answer: a
Explanation: A computer network, or data network, is a digital telecommunications network which allows nodes to share resources. In computer networks, computing devices exchange data with each other using connections between nodes.
Explanation: A computer network, or data network, is a digital telecommunications network which allows nodes to share resources. In computer networks, computing devices exchange data with each other using connections between nodes.
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
a) prior network
b) chief network
c) prime network
d) overlay network
Answer: d
Explanation: An overlay network is a computer network that is built on top of another network.
Explanation: An overlay network is a computer network that is built on top of another 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
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
Answer: d
Explanation: In a computer network, a node can be anything that is capable of sending data or receiving data or even routing the data to the destination.
Explanation: In a computer network, a node can be anything that is capable of sending data or receiving data or even routing the data to the destination.
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
a) broadcast network
b) unicast network
c) multicast network
d) none of the mentioned
Answer: a
Explanation: In a broadcast network, an information is sent to all station in a network whereas in a multicast network the data or information is sent to a group of stations in the network. In unicast network, information is sent to only one specific station.
Explanation: In a broadcast network, an information is sent to all station in a network whereas in a multicast network the data or information is sent to a group of stations in the network. In unicast network, information is sent to only one specific station.
6. Bluetooth is an example of
a) personal area network
b) local area network
c) virtual private network
d) none of the mentioned
a) personal area network
b) local area network
c) virtual private network
d) none of the mentioned
Answer: a
Explanation: A personal area network (PAN) is the interconnection of information technology devices within the range of an individual person, typically within a range of 10 meters.
Explanation: A personal area network (PAN) is the interconnection of information technology devices within the range of an individual person, typically within a range of 10 meters.
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
a) bridge
b) firewall
c) router
d) all of the mentioned
Answer: c
Explanation: A router[a] is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet.
Explanation: A router[a] is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet.
8. A list of protocols used by a
system, one protocol per layer, is called
a) protocol architecture
b) protocol stack
c) protocol suite
d) none of the mentioned
a) protocol architecture
b) protocol stack
c) protocol suite
d) none of the mentioned
Answer: b
Explanation: A protocol stack refers to a group of protocols that are running concurrently that are employed for the implementation of network protocol suite.
Explanation: A protocol stack refers to a group of protocols that are running concurrently that are employed for the implementation of network protocol suite.
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
a) in case of traffic overloading
b) when a system terminates
c) when connection between two nodes terminates
d) none of the mentioned
Answer: a
Explanation: A network congestion occurs when traffic in the network is more than the network could handle.
Explanation: A network congestion occurs when traffic in the network is more than the network could handle.
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
a) local area network
b) virtual private network
c) enterprise private network
d) storage area network
Answer: b
Explanation: A virtual private network extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network
Explanation: A virtual private network extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network
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