Mobile Communication Quiz | Mobile Communication Short Questions and Answers

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Questions
41 Garage door opener is a
A Transmitter
B Receiver
C Transceiver
D None of the above

Answer: Transmitter
42 Carrier frequency of a TV remote control is in the range
A of Infra red
B < 100 MHz
C < 1 GHz
D < 2 GHz

Answer: of Infra red
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43 Half duplex system for communication has
A Communication in single direction at a time
B Communication in single direction
C Communication in both directions at the same time
D None of the above

Answer: Communication in single direction at a time
44 The process of transferring a mobile station from one base station to another is
A MSC
B Roamer
C Hand off
D Forward channel

Answer: Hand off
45 IMT-2000 is a digital mobile system that functions as
A Low earth orbit satellites
B Pager
C Cordless
D All of the above

Answer: All of the above
46 NADC is a 2G standard for
A TDMA
B CDMA
C Both a & b
D None of the above

Answer: TDMA
47 2G CDMA standard – cdma one supports up to
A 64 users
B 8 users
C 32 users
D None of the above

Answer: 64 users
48 The 2G GSM technology uses a carrier separation of
A 200 KHz
B 300 KHz
C 30 KHz
D 1.25 MHz

Answer: 200 KHz
49 The minimum spectrum allocation required for W-CDMA is
A 5MHz
B 2MHz
C 500KHz
D 100KHz

Answer: 5MHz
50 CDMA2000 1xEV provides high speed data access with channel allocation of
A 1.25 MHz
B 5 MHz
C 50 MHz
D 4 MHz

Answer: 1.25 MHz
51 Radio capacity may be increased in cellular concept by
A Increasing the number of base stations & reusing the channels
B Increase in radio spectrum
C Both a & b
D None of the above

Answer: Increasing the number of base stations & reusing the channels
52 The shape of the cellular region for maximum radio coverage is
A Hexagon
B Circular
C Square
D Oval

Answer: Hexagon
53 Hexagon shape is used for radio coverage for a cell because
A It approximates circular radiation pattern
B It uses the maximum area for coverage
C Fewer number of cells are required
D All of the above

Answer: All of the above
54 Spectrum Efficiency of a cellular network is
A The traffic carried by whole network
B The traffic carried per cell divided by the bandwidth of the system and the area of a cell
C Expressed in Erlang /MHz /km2
D Both b and c

Answer: Both b and c
55 The strategies acquired for channel assignment are
A Fixed
B Dynamic
C Regular
D Both a and b

Answer: Both a and b
56 In a fixed channel assignment strategy
A The call gets blocked if all the channels of the cell are occupied
B Each cell is assigned a predetermined set of frequencies
C The call is served by unused channels of the cell
D All of the above

Answer: All of the above
57 In a dynamic channel assignment strategy,
A MSC allocates the channel according to the predetermined algorithm
B Voice channels are not permanently assigned
C The serving base station requests for a channel from MSC
D All of the above

Answer: All of the above
58 Disadvantage of using Dynamic channel assignment is
A More storage required
B Calculations and analysis is increased
C Both a & b
D None of the above

Answer: Both a & b
59 In Handoff
A New channel allocation is done
B Process of transferring the call to the new base station
C Transfers the call
D All of the above

Answer: All of the above
60 Inter system Handoffs are done
A When mobile station receives more power from other base station than the serving base station
B When mobile station moves in two cellular systems with different MSC
C When mobile station moves between two cellular systems
D All of the above

Answer: All of the above

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