1. A computer network permits sharing of
a. Resources and information
b. Information
c. Resources
d. None of the mentioned
Correct Option: a
2. data transmission modes are:
a. half duplex
b. full duplex
c. simplex
d. these are all
Correct Option: d
3. In the full duplex made
a. Both direction at the same time
b. Both direction at the opposite time
c. One left and second right time
d. None of these
Correct Option: a
4. signals maintain a constant level then changes to another constant level
a. continuous signal
b. periodic signal
c. Aperiodic signal
d. discrete signal
Correct Option: d
5. What is the minimum number of wires needed to send data over it serial communication link layer?
a. 2
b. 3
c. 4
d. 5
Correct Option: a
6. Peak Amplitude (A) have
a. Rate of change of signals
b. Maximum time period
c. Maximum strength of signals
d. Minimum strength of signals
Correct Option: c
7. In which medium both directions at the same time like telephone?
a. half duplex
b. simplex
c. transmitter
d. Full duplex
Correct Option: d
8. ATM stands for.
a. Automatic transfer machine
b. direct transfer machine
c. automatic taller machune
d. Automated teller machine
Correct Option: d
9. There are Internet service providers.
a. Local
b. National
c. Regional, Local, National and International
d. Regional
Correct Option: c
10. computer network is
a. collection hardware components and computers
b. sharing of resources and information
c. interconnected by communication channels
d. all of the above
Correct Option: d
11. Data communication deals with the transmission of signals in a
a. Realiable manner
b. Multiplexing
c. Realiable and efficient manner
d. Efficient manner
Correct Option: c
12. Networking deals with the
a. Technology & architecture
b. LANs
c. WANs
d. None of these
Correct Option: a
13. provide routing function across multiple networks
a. internet layer
b. application layer
c. physical layer
d. network access layer
Correct Option: a
14. Takes incoming data
a. Receiver
b. Transmission System
c. Transmitter
d. destination
Correct Option: d
15. three protocol architectures are:
a. three layer architecture
b. OSI MODEL
c. TCP/IP protocol
d. All of these
Correct Option: d
16. How many types of communication model?
a. 5
b. 2
c. 3
d. 6
Correct Option: a
17. Which of these is a standard interface for serial data transmission?
a. Rs232C
b. ACSII
c. 2
d. none of them
Correct Option: a
18. A collection of hyperlinked documents on the internet forms the______
a. Mailing list
b. Hypertext markup language
c. World Wide Web
d. E-mail system
Correct Option: c
19. Which is the technology that connects the machine and people with in a site in small area
a. MAN
b. LAN and WAN
c. LAN
d. WAN
Correct Option: c
20. A periodic signal:
a. various in smooth
b. maintain a constant level
c. pattern not repeated over time
d. patttern repeated over time
Correct Option: c
21. We use the symbol to present the Amplitude
a. f
b. e
c. amp
d. (A)
Correct Option: d
22. S(t) is a
a. networking
b. internet protocol
c. time domain function
d. frequency domain function
Correct Option: c
23. the interactive transmission of data within a time sharing system may be best suited to
a. bi-flex lines
b. half duplex line
c. full duplex line
d. simplex line
Correct Option: b
24. Time domain function is……….
a. S(F)
b. S(t)
c. S(f)
d. S(h)
Correct Option: b
25. which signal maintains a constant level then changes to another constant level?
a. analog signal
b. digital signal
c. Discrete signal
d. continues signal
Correct Option: c
26. Range of frequencies contained in signal by. ?
a. Spectrum
b. bandwidth
c. transmitter
d. network
Correct Option: a
27. Which technology connect the machine and people within a site in a small area?
a. LAN
b. MAN
c. WAN
d. None of them
Correct Option: a
28. Data flow between two devices can occur in a _______ way.
a. simplex
b. Full Duplex
c. Half duplex
d. all of the mentioned
Correct Option: d
29. what is the benefit of the networking
a. easiar backup
b. easiar access to resources
c. file sharing
d. all of the above
Correct Option: d
30. Protocol use for communication between the——- in the system
a. Entities
b. Network
c. Topology
d. None of the above
Correct Option: a
31. DARPA stand for
a. Research Project Agency
b. Defense Advanced Research Project Agency
c. Advanced Project Agency
d. None of these
Correct Option: b
32. communication network used to interconnect communication deals with
a. communication protocl
b. internet protocol
c. networking
d. data communication
Correct Option: c
33. whose convert encode bit stream into electromagnetic signals?
a. Recovery
b. Destination
c. Transmitter
d. Synchronization
Correct Option: c
34. TCP/IP protocol is __________ a standard
a. both are false
b. de- facto
c. de- jure
d. both are true
Correct Option: b
35. Transmitter converts data into
a. Data exchange management
b. Transmitted signals
c. Carries data
d. Transmission line
Correct Option: b
36. large set of devices would need impractical number of connections?
a. source communication
b. General communication
c. Networking communicating formatting
d. network organization
Correct Option: c
37. Which of the following transmission directions listed is not a legitimate channel?
a. Simplex
b. Double Duplex
c. Half duplex
d. full duplex
Correct Option: b
38. The location of a resource on the internet is given by its?
a. computing
b. URL
c. Protocol
d. e mail system
Correct Option: b
39. ATM networks are
a. Connection oriented
b. Connectionless
c. Interconnected
d. None of these
Correct Option: a
40. transmission impairment caused by:
a. noise
b. delay distortion
c. attenuation
d. all
Correct Option: d
41. Transmission meant by
a. Communication by propagation & processing of signals
b. By processing
c. By propagation
d. None of these
Correct Option: a
42. communication of data by processing of signal deals with
a. receiver
b. transmission
c. signals
d. network
Correct Option: b
43. The electromagnetic or light waves represnting data are called
a. sende
b. signal
c. information
d. transmission
Correct Option: b
44. Bandwidth is a
a. Use two DC component
b. Electric or electronic representation of data
c. Limit the data rate that can be carried
d. Entities that convey meaning
Correct Option: c
45. how many types of signal in data communication
a. 4
b. 3
c. 2
d. 5
Correct Option: a
46. which component contain zero frequency
a. DC
b. AC
c. CA
d. AC&DC
Correct Option: a
47. The technology connect sites that are in diverse location.
a. PAN
b. WAN
c. MAN
d. LAN
Correct Option: b
48. This was the first network.
a. ANSNET
b. NSFNET
c. CSNET
d. ARPANET
Correct Option: d
49. a set of rules that governs all aspects of information communication is called
a. server
b. internet
c. protocol
d. OSI model
Correct Option: c
50. Protocol architecture has the model or layer
a. 3
b. 2
c. 5
d. 1
Correct Option: a
51. The protocol architecture are
a. 3
b. 1
c. 4
d. 5
Correct Option: a
52. In LAN’s
a. data rate much higher
b. data rate much lower
c. both
d. none of the mention
Correct Option: a
53. Crossing public rights of way?
a. bus topology
b. wide area
c. local area
d. metropolitan
Correct Option: b
54. Source_________
a. converts data into transmittable form
b. generates data to be transmitted
c. carries data
d. converts the signals
Correct Option: b
55. Open system interconnection_________
a. Process from difference in data representation
b. A framework for developing protocol standards
c. Web browser
d. File transfer
Correct Option: b
56. Data rates much higher in ?
a. PAN
b. LAN
c. MAN
d. WAN
Correct Option: b
57. “Parity bits” are used for which of the following purposes?
a. To identify the user
b. Encryption of data
c. To detect errors
d. To transmit faster
Correct Option: c
58. The term HTTP stands for?
a. Hypertext tracing protocol
b. Hyper terminal tracing program
c. Hypertext transfer protocol
d. Hypertext transfer program
Correct Option: c
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