DATA COMMUNICATION AND NETWORKING MCQ Questions and Answers

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#1. ……… is the transmission of data between two or more computers over communication links.

#2. Communication channel having ……… types.

#3. In simplex channel, flow of data is

#4. Communication between a computer and a keyboard involves …….. transmission.

#5. Mobile phone is an example of which type of communication channel?




#6. Which of the following is not a property of twisted pair cabling?

#7. In twisted pair, wires are twisted together, which are surrounded by an insulating material and an outer layer called

#8. Which of the following is the greatest advantage of co-axial cabling?

#9. Which of the following cables can transmit data at high speeds?

#10. Which of the following is an advantage for using fibre optics data transmission?




#11. Networking using fibre optic cable is done as

#12. Which of the following is not a property of fibre optic cabling?

#13. A device that connects to a network without the use of cables is said to be

#14. Which of the following is the fastest communication channel?

#15. Bandwidth refers to




#16. Which of the following represents the fastest data transmission speed?

#17. A(n) ……… is composed of several computers connected together to share resources and data.

#18. What do we call for the arrangement when two or more computers physically connected by cables to share information or hardware?

#19. A combination of hardware and software that allows communication and electronic transfer of information between computers is a

#20. Which of the following terms is associated with networks?




#21. What type of resource is most likely to be a shared common resource in a computer network?

#22. The first network that has planted the seeds of Internet was

#23. Pathways that support communication among the various electronic components on the system board are called

#24. What do we call a network whose elements may be separated by some distance? It usually involves two or more network and dedicated high speed telephone lines.

#25. LAN can use ……… architecture.




#26. Ethernet, token ring and token bus are types of

#27. The advantage of LAN is

#28. Computer connected to a LAN can ……… .

#29. ……… allows LAN users to share computer programs and data.

#30. What is the use of bridge in network?




#31. Which of the following items is not used in Local Area Network (LANs)?

#32. Which type of network would use phone lines?

#33. Which of the following refers to a small, single-site network?

#34. These servers store and manage files for network users.

#35. ……… is the most important/powerful computer in a typical network.




#36. A protocol is a set of rules governing a time sequence of events that must take place

#37. A ……… is an agreement between the communication parties on how communication is to proceed.

#38. A device operating at the physical layer is called a

#39. Which of the following devices that joins multiple computers together within one LAN?

#40. Which of the following is used for modulation and demodulation?




#41. What is the name of the derive that links your computer with other computers and information services through telephone lines?

#42. What is the function of a modem?

#43. The hardware device or software program that sends messages between network is known as a

#44. Which of the following is not a network device?

#45. Geometric arrangement of devices on the network is called




#46. Which of the following topologies is not of broadcast type?

#47. Network components are connected to the same cable in the ……… topology.

#48. Hub is associated with ……… network.

#49. In a ring topology, the computer in possession of the ……… can transmit data.

#50. In which topology, every node is connected to two other nodes?




#51. Which is the name of the network topology in which there are bi-directional links between each possible node?

#52. An alternate name for the completely interconnected network topology is

#53. Which is the highest reliability topology?

#54. P2P is a ……… application architecture.

#55. A packet filtering firewall operates at which of the following OSI layers?




#56. Encryption and decryption are the functions of

#57. Name the fourth layer of OSI model

#58. In OSI network architecture, the routing is performed by

#59. In the following list of devices which device is used in network layer?

#60. Switches work on which OSI layer?




#61. In IT networking, which of the following device is used in physical layer?

#62. . Multiplexing involves ……… path(s) and ……… channel(s).

#63. A processor that collects the transmissions from several communication media and send them over a single line that operates at a higher capacity is called

#64. To send data/message to and from computers, the network software puts the message information in a

#65. How many bits are there in the ethernet address?




#66. Ethernet uses

#67. In networks, a small message used to pass between one station to another is known as

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