Networking Basics Questions and Answers

Q: A _______ is the physical path over which a message travels.

Correct answer: MediumThe transmission medium is the physical path a signal travels along - twisted pair, coaxial cable, optical fibre, or the free space used by radio. It is one of the five components of a data communication system, alongside the message, the sender, the receiver and the protocol. A route or path is the sequence of devices a message passes through, which is a logical rather than a physical notion.

Q: Which organization has authority over interstate and international commerce in the communications field?

Correct answer: FCCThe Federal Communications Commission regulates interstate and international communications by radio, television, wire, satellite and cable, and it allocates the radio spectrum within the United States. The ITU-T issues international telecommunication recommendations but does not regulate commerce; the IEEE develops standards such as the 802 series; and ISOC is the parent body of the IETF.

Q: Which of this is not a network edge device?

Correct answer: SwitchEdge devices are the hosts at the edge of the network that originate and consume data - PCs, smartphones, servers. A switch belongs to the network core, forwarding traffic between them without being the source or destination of the communication itself. The distinction matters in network design, since edge and core devices have quite different requirements for resilience, throughput and management.

Q: Three or more devices share a link in ________ connection.

Correct answer: MultipointIn a multipoint, or multidrop, connection more than two devices share a single link, so the capacity is shared - spatially if they can transmit at once, or in time if they must take turns. A point-to-point connection dedicates the whole link to two devices. Simplex describes the direction of flow rather than the number of devices, so it answers a different question altogether.

Q: Which of the following computer networks is built on the top of another network?

Correct answer: overlay networkAn overlay network is built as a logical topology on top of an existing physical one: its links are paths, possibly many hops long, through the underlying network. Peer-to-peer systems, VPNs and content distribution networks are all overlays. The advantage is that new services can be deployed without changing the infrastructure beneath; the cost is that the overlay cannot see the real topology and may route inefficiently across it.

161.

A _______ is the physical path over which a message travels.

A.Path
B.Medium
C.Protocol
D.Route

Answer: B

Correct answer: Medium

The transmission medium is the physical path a signal travels along - twisted pair, coaxial cable, optical fibre, or the free space used by radio. It is one of the five components of a data communication system, alongside the message, the sender, the receiver and the protocol. A route or path is the sequence of devices a message passes through, which is a logical rather than a physical notion.

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162.

Which organization has authority over interstate and international commerce in the communications field?

A.ITU-T
B.IEEE
C.FCC
D. ISOC

Answer: C

Correct answer: FCC

The Federal Communications Commission regulates interstate and international communications by radio, television, wire, satellite and cable, and it allocates the radio spectrum within the United States. The ITU-T issues international telecommunication recommendations but does not regulate commerce; the IEEE develops standards such as the 802 series; and ISOC is the parent body of the IETF.

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163.

Which of this is not a network edge device?

A.PC
B.Smartphones
C.Servers
D.Switch

Answer: D

Correct answer: Switch

Edge devices are the hosts at the edge of the network that originate and consume data - PCs, smartphones, servers. A switch belongs to the network core, forwarding traffic between them without being the source or destination of the communication itself. The distinction matters in network design, since edge and core devices have quite different requirements for resilience, throughput and management.

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164.

A _________ set of rules that governs data communication.

A.Protocols
B.Standards
C.RFCs
D.Servers

Answer: A

Explanation: In communications, a protocol refers to a set of rules and regulations that allow a network of nodes to transmit and receive information. Each layer in the network model has a protocol set, for example, the transport layer has TCP and UDP protocols.

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165.

Three or more devices share a link in ________ connection.

A.Unipoint
B.Multipoint
C.Point to point
D.Simplex

Answer: B

Correct answer: Multipoint

In a multipoint, or multidrop, connection more than two devices share a single link, so the capacity is shared - spatially if they can transmit at once, or in time if they must take turns. A point-to-point connection dedicates the whole link to two devices. Simplex describes the direction of flow rather than the number of devices, so it answers a different question altogether.

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166.

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.mail system

Answer: B

Explanation: A Computer network 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

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167.

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.a process is active and another is inactive

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. The nodes have certain processes which enable them to share a specific type of data using a distinct protocol.

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168.

Which of the following computer networks is built on the top of another network?

A.prior network
B.chief network
C.prime network
D.overlay network

Answer: D

Correct answer: overlay network

An overlay network is built as a logical topology on top of an existing physical one: its links are paths, possibly many hops long, through the underlying network. Peer-to-peer systems, VPNs and content distribution networks are all overlays. The advantage is that new services can be deployed without changing the infrastructure beneath; the cost is that the overlay cannot see the real topology and may route inefficiently across it.

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169.

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

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 its destination. Routers, Computers and Smartphones are some examples of network nodes.

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170.

Communication channel is shared by all the machines on the network in ________

A.broadcast network
B.multicast network
C. unicast network
D.anycast network

Answer: A

Explanation: In a broadcast network, information is sent to all stations 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. The broadcast address of the network is the last assigned address of the network.

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