Wednesday, July 31, 2013

1. The basic concept of cellular phones began in _________

    a) 1945     b) 1946      c) 1947       d) 1948

2. Who is the inventor of cell phone? 
    
    a) Martin Cooper     b) Joel Engel     c) Robert    d) Willson

3. The maximum permissible transmission rate of message is directly proportional to ____________

   a) signal voltage    b) signal current    c) signal power    d) channel noise

4. The maximum permissible transmission rate of message is inversely proportional to ____________

   a) signal voltage    b) channel noise    c) signal power    d) signal current

5. Efficiency in data communication valued through _________ properties.

    a) Delivery    b) Accuracy     c) Timeliness    d) both a, b & c

6. The message source is the __________

    a) transmitter  b) receiver   c) conductor     d) none

7. The destination is the _________

    a) transmitter   b) receiver   c) conductor     d) none

8. A channel whose direction of transmission is unchanging is referred to as a _____________  channel.

   a) Simplex     b) Half-duplex     c) Full-duplex     d) Multi-duplex

9. ___________ channel is a single physical channel in which the direction may be reversed.

    a) Simplex     b) Half-duplex     c) Full-duplex     d) Multi-duplex

10. _____________ channel allows simultaneous message exchange in both directions.

  a) Simplex     b) Half-duplex     c) Full-duplex     d) Multi-duplex

11. Propagation of signals across a communication medium is called __________

      a) signaling    b) data     c) transmission   d) signals

12. Communication of data achieved by the processing of signals is called _______________

      a) signaling    b) data     c) transmission   d) signals

13. A collection of facts in raw forms that become information after processing is called __________

     a) signaling    b) data     c) transmission   d) signals

14. A specific set of communication rules is called _____________

      a) protocol     b) character sets     c) Sequencing of messages    d) none

15. Most first generation cellular systems such as AMPS use __________

      a) analog AM    b) analog FM    c) both a and b    d) none

16. Most car phones have a transmitter power of ________ watts.

      a) 2       b) 3      c) 4       d) 5

17. A handheld cell phone operates on about _______ to _______ watt of power.

      a) 0.25 to 1.5    b) 0.5 to 1.5    c) 0.75 to 1    d) 0.25 to 1   

18. The base station with the power of several hundred watts is enough to cover the ___________

      a) average city     b) large city      c) world wide      d) none

19. A typical base station can transmit the output power of _____to _____ watts.

a) 100 to 150    b) 200 to 250     c) 300 to 350    d) 400 to 450

20. The __________ coordinates the activities of all of the base stations.

      a) MSC     b) BTS     c) PSTN    d) both b and c

21. The Mobile Switching Center connects the entire cellular system to the ________

      a) MSC     b) BTS     c) PSTN    d) both a and c

22. A typical MSC handles ___________ cellular subscribers and _______ simultaneous conversations at a time.

      a) 100000 ; 50000                       b) 100000 ; 500000
      c) 100000 ; 500                           d) 100000 ; 5000 
   
23. A cell is approximately spread ______ km distance.

      a) 20       b) 30        c) 40          d) 50

24. Typically SIM cards contain _________ bytes of memory.

      a) 22 k     b) 32 k     c) 42 k       d) 52 K

25. The SIM stores specific data such as the
    
     a) Short Message Service Center 
     b) Service Provider Name
     c) Service Dialing Numbers
     d) both a, b and c

26. The operating voltage of the majority of SIM cards launched before 1998 was ________ volt.

     a) 4          b) 5           c) 6        d) 7

27. Indian Mobile numbers have 10 digits with +91-AB-YXX-OOOOO format. What is the meaning of AB.

    a) Country code     b) Access code     c) MSC code      d) subscriber number

28. Indian Mobile numbers have 10 digits with +91-AB-YXX-OOOOO format. What is the meaning of YXX.

    a) Country code     b) Access code     c) MSC code      d) subscriber number

29. Indian Mobile numbers have 10 digits with +91-AB-YXX-OOOOO format. What is the meaning of +91.

    a) Country code     b) Access code     c) MSC code      d) subscriber number

30. Indian Mobile numbers have 10 digits with +91-AB-YXX-OOOOO format. What is the meaning of OOOOO.

    a) Country code     b) Access code     c) MSC code      d) subscriber number

31. What is the expansion of SID?

      a) System identification code         b) Security identification code
      c) System identifying data                 d) Security identification data

32. SID is a unique ________ digit number.

      a) 4       b) 5       c) 6       d) 7

33. What is the expansion of ESN?

      a) Electronic Serial Number           b) Encoded Serial Number
      c) Electronic Serial data                   d) Encoded Serial data

34. ESN is a unique ________ bit number programmed into the phone when it is manufactured.

      a) 34       b) 25       c) 76       d) 32

35. When a mobile moves into a different cell while a conversation is in progress, the MSC automatically transfers the call to a new channel belonging to the new base station. This is called ____________

     a) handoff      b) handless     c) handheld     d) handchange

36. Handoff depends on __________

      a) cell size     b) boundary length     c) signal strength    d) both a, b & c

 37. Handoff can be initiated by the _________

       a) BS      b) MS       c) transceiver      d) both a & b

38. Each cell tower typically receiver ________ frequency spectrum.

      a) 1.5 MHz       b) 1.8 MHz      c) 2.5 MHz      d) 2.8 MHz

39. GPRS was originally standardized by _____________

      a) European Telecommunications Standards Institute
      b) German Telecommunications Standards Institute
      c) Japanese Telecommunications Standards Institute
      d) Indian Telecommunications Standards Institute

40. The speed limit of GPRS is _______

      a) 115 kbps      b) 215 kbps      c) 315 kbps      d) 415 kbps     

41. GPRS is called ________

      a) 2 G     b) 2.5 G       c) 3 G       d) 4 G

 42. The upload and download speeds that can be achieved in GPRS depend on ________________

    a) number of BTS      b) channel encoding      c) both a & b    d) none

43. If SMS over GPRS is used, an SMS transmission speed of about _______ SMS messages per minute may be achieved.

     a) 30                b) 40           c) 50            d) 60 

44. The SMS concept was developed in the Franco-German GSM cooperation in ___________

     a) 1982            b) 1983       c) 1984       d) 1985

45. Maximum ____________ characters can be sending through SMS.

     a) 160             b) 170         c) 180          d) 190

46. SMSC means ___________

     a) Short Message Service Center       b) Security Media Service Center
     c) Security Message Service Center      d) none of these

47. Some providers allow users to request delivery reports by prefixing each message with ______________

     a) *0#      b) *N#      c) *Y#     d) both a & b

48. Transmission of short messages between the SMSC and the handset is done using __________

     a) Mobile Application Part     b) SS7 protocol      c) both a & b    d) none

49. All mobile to mobile calls and PSTN to mobile calls are routed through a ___________

      a) G-MSC        b) V-MSC    c) Anchor MSC      d) Target MSC

50. The ___________ is the MSC that determines which visited MSC the subscriber who is being called is currently located at.

        a) G-MSC       b) V-MSC    c) Anchor MSC      d) Target MSC

51. The ____________ is the MSC where a customer is currently located.

       a) G-MSC        b) V-MSC    c) Anchor MSC      d) Target MSC

52. The anchor MSC is the MSC from which a handover has been initiated.

      a) G-MSC        b) V-MSC    c) Anchor MSC      d) Target MSC

53. The target MSC is the MSC toward which a Handover should take place.

      a) G-MSC        b) V-MSC    c) Anchor MSC      d) Target MSC

54. A BTS is controlled by a parent BSC via the __________

      a) base station control function          b) V-MSC   
      c) Anchor MSC                                      d) Target MSC

55. Typically a BSC has tens or even hundreds of _________ under its control.

      a) BTS            b) BCF        c) MSC        d) none of these

56. What is the expansion of PLMN?

      a) Public Land Mobile Network      b) Police Land Mobile Network
      c) Public Telephone Land Network    d) None of these

57. ____________ is a central database that contains details of each mobile phone subscriber that is authorized to use the GSM core network.

     a) HLR      b) BSC     c) VLR     d) EIR

58. What is the expansion of MSISDN?

      a) Mobile Subscriber Integrated Services Digital Network Number
      b) Modulated Subscriber Integrated Services Digital Network Number
      c) Mobile Subscriber Integrated Server Digital Network Number
      d) None of the above

59. ___________ is a database of the subscribers who have roamed into the jurisdiction of the MSC which it serves.

     a) HLR      b) BSC     c) VLR     d) EIR

60. The data stored in the VLR has either been received from the_______ , or collected from the _______

       a) HLR, MS             b) HLR, BSC        c) BSC, MS           d) MS, VLR

61. _________ is a function to authenticate each SIM card that attempts to connect to the GSM core network.

      a) HLR     b) AUC    c) VLR    d) BSC

62. Cells are ________ transmitting over small geographic areas that are represented as hexagons.

     a) base stations      b) mobile stations     c) TV stations   d) none

63. ___________ is a group of cells.

     a) cluster      b) cell structure      c) base cell      d) mobile cell

64. The MTSO contains the ____________

      a) Switching equipment                               b) Mobile switching center
      c) equipment for controlling the cell sites     d) both a, b & c

65. The systems in the __________ are the heart of a cellular system.

      a) MSC           b) BSC        c) MTSO      d) VLR

66. CGSA means ________________

      a) Cellular Geographic Serving Area
      b) Cell Pone Generation service Area
      c) Cellular Generator Serving Area
      d) Cell Phone Generator Serving Area

67. A cell site consists of _____________

     a) transmitter   b) antenna power   c) transmission radios    d) both a, b & c

68. A cell site is operated by a __________

      a) Wireless Service Provider
      b) Wireline Searching Provider
      c) Wireless Sending Provider
      d) Wireline Sending Provider

 69. Femto-cells provide small area coverage solutions operating at _______

      a) Intermediate transmit powers
      b) high transmit powers
      c) low transmit powers
      d) both a and b

70. The FCC permits an effective radiated power (ERP) of up to _______ per channel.

      a) 300 watts b) 400 watts    c) 500 watts   d) 600 watts

71. The mobile stations operate at an ERP of __________

      a) 3 W    b) 4 W    c) 5 W   d) 6 W

72. The maximum transmitted RF power for microcell is _____________

     a) 3 W    b) 4 W    c) 8 W   d) 10 W

73. The maximum transmitted RF power for macrocell is _____________

     a) 10W or 20W      b) 20W or 30W       c) 20W or 40W      d) 10W or 40W

 74. Vehicle-mounted antennas used for cellular communications normally operate at a power level of _________

       a) 2 watts or less       b) 3 watts or less     c) 4 watts or less    d) none      
   
75. Roaming calls within a local tariff area, when at least one of the phones belong outside that area. This is called ____________

      a) Trombone roaming     b) Home area    c) International roaming
       d) Inter MSC roaming

76. If you want to be the world’s first network, the company must have cellular service in ________ cities.


         a) 120       b) 130     c) 140        d) 150

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