61 Mobile Assisted Handoff [MAHO] provides
A Faster handoffs
B Suitability for frequent handoffs
C MSC need not monitor the signal strength
D All of the above
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62 When all of the radio channels are in use in a trunking system
A The user is blocked
B The access to the system is denied
C The queue may be provided
D All of the above
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63 Interference in cellular systems is caused by
A Two base stations operating in same frequency band
B Two calls in progress in nearby mobile stations
C Leakage of energy signals by non cellular systems into cellular frequency band
D All of the above
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64 Co-channel reuse ratio depends upon
A Radius of the cell
B Distance between the centers of the co channel cells
C Frequency allocation of nearest cells
D Both a and b
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65 The techniques used to improve the capacity of cellular systems are
A Splitting
B Sectoring
C Coverage zone approach
D All of the above
View Answer
Answer: Random access protocol
66 Distributed antenna systems are used at
A Transmitters of mobile systems
B Transmitters of base stations
C Inputs and outputs of repeaters
D Receivers of mobile stations
View Answer
Answer: Inputs and outputs of repeaters
67 Antenna down tilting refers to
A Decreasing the S/N ratio at the antenna input
B Decreasing the strength of antenna
C Focusing radio energy towards ground
D All of the above
View Answer
Answer: Focusing radio energy towards ground
68 The rainbow pattern seen on a CD is an example of
A Reflection
B Refraction
C Diffraction
D None of the above
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69 When a wave falls on a perfect conductor
A Wave is partially reflected and partially transmitted
B All incident energy is reflected back without loss of energy
C Part of energy gets absorbed
D Both a and c
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Answer: All incident energy is reflected back without loss of energy
70 Brewster angle is the angle at which
A No reflection occurs at the first medium
B Reflection coefficient is zero
C The wave gets refracted in the direction of source
D Both a and b
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Miscellaneous GK Questions
Wireless Communication MCQ Questions and Answers Quiz1. Which of the following is/are the main part[s] of basic cellular system.A. A mobile UnitB. A cell SiteC. A mobile Telephone Switching OfficeD. All of the above
2. Fading of the received radio signals in a mobile communication environment occurs because of..........
3. State whether True of False. i] The cells or subdivisions of a geographical area are alwayshexagonal. ii] A land to Mobile call originates through the Telephoneexchange.
4. In..............Frequency Spectrum is divided into smaller spectra and is allocated to each user
5. In................multiple access is achieved by allocating different time slots for the different users.A. CDMAB. TDMAC. FDMAD. FPGA