Mobile Communication MCQs Quiz Multiple Choice Questions & Answers Page 2

51. GEO stands for

1. Geometric earth orbit
2. Geo earth orbit
3. Geostationary earth orbit
4. Geo Orbit

52. GSM uses a TCH to transmit

1. data
2. number
3. user data
4. channel

53. If two or more stations access the medium at the same time, ..............occurs and the transmission data is destroyed.

1. poisson
2. destruction
3. construction
4. collision

54. I-mode service introduced in the..............year.

1. 1990
2. 1993
3. 1994
4. 1999

55. In i-mode systems the technical requirements for ringing tone download are

1. i-mode java
2. smf, mfi
3. gif
4. java

56. In Which year GSM was Founded?

1. 1982
2. 1981
3. 1992
4. 1980

57. In which year, the telephone principle was introduced?

1. 1881
2. 1891
3. 1971
4. 1861

58. In WML document cards can be grouped to form

1. deck
2. cards
3. pages
4. files

59. In...............stations sense the carrier & start sending immediately if the medium is idle.

1. non-persistentCSMA
2. P-persistent CSMA
3. Q-persistent CSMA
4. R-persistent CSMA

60. is specifically adapted to the wireless domain.

1. MAC
2. CDM
3. TDM
4. FDM

61. Link setup and management between devices including security functions and parameter negotiation is done by

1. link manager protocol
2. logical link control and adaptation protocol
3. service discovery protocol
4. baseband

62. Many products today cannot interoperate and needs the additional standard .................to specify an inter access point protocol.

1. IEEE 80211a
2. IEEE 80211c
3. IEEE 80211e
4. IEEE 80211f

63. MEO satellites have a distance of about

1. 1000-2000 km
2. 2000-4000 km
3. 5000-12000 km
4. 15000-20000 km

64. MS could use all................slots within a TDMA frame to achieve an AIUR.

1. 5
2. 4
3. 2
4. 8

65. Name the channel that allows for simultaneous transmission in both directions.

1. Full duplex
2. Half duplex
3. Duplex
4. Simplex

66. Objective of WAP forum is to

1. provide simplicity
2. provide diverse internet content
3. provide private internet acacess
4. provide wired network access

67. RTS Stands for

1. Request to send
2. Request to Reply
3. Reply to send
4. reply to single

68. RTS stands for

1. Request to send
2. Request to simple
3. Reply to send
4. Reply to single

69. Some of the Advantages of WLANs are

1. flexibility and planning
2. quality of service
3. safety and security
4. proprietary solutions

70. Strictly centralized scheme with one master station & served slave station is.

1. Controlling
2. Correlation
3. Coding
4. Polling

71. TDMA stands for

1. Time division multiple access
2. Time divide multiple access
3. Time division mode access
4. Time division multiple account

72. The .................management supports the association and re-association of a station to an access point and roaming between different access points.

1. phy
2. station
3. mac
4. pmd

73. The architecture introduces two new network elements is

1. GPRS
2. GSM
3. SGSN
4. CKSN

74. The attractive force Fg of the earth due to gravity equals

1. mg(R/r)2
2. mg
3. R
4. mg(r/R)2

75. The basis for transmission of data in WAP is formed by

1. bearer services
2. providers
3. wdp
4. wcmp

76. The bluetooth is a ....................with a very limited coverage and without the need for an infrastructure.

1. WAN
2. LAN
3. MAN
4. WAP device

77. The carrier spacing of Bluetooth is

1. 1MHz
2. 2MHz
3. 3MHz
4. 4MHz

78. The compatibility of Bluetooth is

1. with 80210 standard
2. with 80211 standard
3. with 80212 standard
4. with 80213 standard

79. The current www in the internet offers web pages with the help of ......................pages.

1. HTTP and web
2. FTP and HTTP
3. HTML and web servers
4. HTTP

80. The data rate for Bluetooth technology is ..............Mbit/s.

1. 1
2. 2
3. 3
4. 4

81. The duration of a frame is

1. 3615 ms
2. 6615 ms
3. 7615 ms
4. 4615 ms

82. The first refinement of the classical Aloha scheme is provided by the introduction of time slots is called

1. slotted aloha
2. classical aloha
3. reservation aloha
4. aloha

83. The goal of IEEE 802.11 standard was the specification of a ...................WLAN .

1. stations
2. simple and robust
3. restrictions
4. quality of service

84. The groups of piconets are called as

1. piconet groups
2. master groups
3. scatter
4. scatternet

85. The history of Bluetooth starts in.....................century.

1. first
2. third
3. fourth
4. tenth

86. The IEEE 802.11 standard belongs to the group of.....................LAN standards.

1. 801x
2. 802x
3. 803x
4. 804x

87. The imode service was introduced in

1. China
2. Europe
3. Japan
4. India

88. The last known locations of mobile users are stored in

1. hlr
2. clr
3. vlr
4. leo

89. The main task of.....................management includes channel tuning and PHY MIB maintenance.

1. phy
2. plcp
3. pmd
4. mac

90. The main tasks of the..............comprise channel coding & error detection / correction.

1. physical layer
2. datalink layer
3. transport layer
4. application layer

91. The node available in IEEE 802.11 system architecture includes

1. stations and access points
2. bss
3. ess
4. distribution system services

92. The only important number for a user of GSM is the

1. phone number
2. location number
3. identify number
4. security number

93. The phase in the hopping pattern of piconet is determined by the.................clock.

1. master
2. slave
3. parked
4. standby

94. The physical layer subdivided into

1. plcp and pmd
2. pstn and pmd
3. plcp and pstn
4. pstn and mac

95. The satellite move away from current gateway and connect to other is termed as

1. inter system handover
2. gateway handover
3. inter-satellite handover
4. intra-satellite handover

96. The scheme typical for satellite systems is

1. Classical Aloha
2. Reservation Aloha
3. Slotted Aloha
4. Aloha

97. The segment of the market for mobile & wireless devices which are growing most rapidly network is

1. Digital cellular
2. Data cellular network
3. Data cell net
4. Digital code net

98. The service that provides the classic reliable request/response transaction known by many client/server scenarios is

1. WTP class 1
2. WTP class 2
3. WTP class 3
4. WTP class 4

99. The services which are application specific and may need all layers of ISO /OSI model are

1. Telephone
2. Tele
3. Bearer
4. Supplementary

100. The specification of air interface is done by......................element of core protocols.

1. baseband
2. radio
3. link manager protocol
4. service discovery protocol