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Class Test-1, Course: Diploma Branch:EC Year: 3, Subject: Communication Network T.T.: 40 min M.M. 40, Attempt all questions:, 1, The IETF standards documents are called, a) RFC, by RCF, ©) ID, d) DFC, , 2. In the layer hierarchy as the data packet moves trom the upper to the lower layers, headers are, , a) Added, b) Removed, ¢) Rearranged, , d) Modified, , 3. The structure or format of data is called, a) Syntax, , b) Semantics, , c} Struct, , d) Formatting, , 4, Communication between a computer and a keyboard involves transmission., a) Automatic, , b) Half-duplex, , ¢} Full-duplex, , d) Simplex

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5. The first Network was called, a) CNNET, , b) NSFNET, , c}) ASAPNET, , d) ARPANET, , 6.A____is the physical path over which a message travels., a) Path, , b) Medium, , c} Protocol, , d) Route, , 7. Which organization has authority over interstate and international commerce in the communications, field?, , a) ITU-T, b) IEEE, c) FCC, d} ISOC, , 8. Which of this is not a network edge device?, a) PC, , b) Smartphones, , c) Servers, , d) Switch

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3.A set of rules that governs data communication., a) Protocols, , b) Standards, , c} RFCs, , d) Servers, , 10. Three or mare devices share a link in connection., a) Unipoint, , b) Multipoint, , c} Point to point, , d)} Simplex, , 11. 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, , 12. 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

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13. 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, , 14. 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, , 15. Communication channel is shared by all the machines on the network in, a) broadcast network, , b) unicast network, , c} multicast network, , d) anycast network, , 16. Bluetooth is an example of, a) personal area network, , b) local area network, , ¢} virtual private network, , d) wide area network

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17.4 is a device that forwards packets between networks by processing the routing, information included in the packet., , a) bridge, b) firewall, ¢} router, , d) hub, , 18. A list of protocols used by a system, one protocol per layer, is called, a) protocol architecture, , b) protocol stack, , ¢} protocol suite, , d} protocol system, , 19. Network congestion occurs, , a) in case of traffic overloading, , b) when a system terminates, , c} when connection between two nodes terminates, , d)} in case of transfer failure, , 20. Which of the following networks extends a private network across public networks?, a) local area network, , b) virtual private network, , c} enterprise private network, , d) storage area network