Mobile Communication MCQ|Wireless Communication MCQ|EEE made Easy

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Wireless communication or mobile communications is an important topic for Electronics and Communication Engineering-based Competitive Exams.

Kerala PSC also conducts exams like Polytechnic lecturer Electronics, Instructor Electronics, Overseer Grade 1 Electronics/ Engineering Assistant Electronics etc.

To answer the below questions, first, you can refer to these short notes also.

Contents

Wireless Communication MCQ


Q1. Reflection is?


a) Propagation mode
b) Propagation mechanism
c) Spread spectrum
d) None of the above


Q2. Which type of handoff used in CDMA?


a) Soft handoff
b) Hard handoff
c) Soft & hard handoff
d) None of the above


Q3. What is intersystem handoff?


a) During a course of a call,
b) Hard handoff
c) Soft & hard handoff
d) None of the above


Q4. The type of access used in GSM technology is


a) FDMA/TDMA
b) CDMA
c) OFDMA
d) None of the above


Q5. Which of these is not true for TDD?


a) TDD uses different time slots for transmission and reception paths
b) Single radio frequency can be used
c) Duplexer is required
d) It increases the battery life of mobile phones


Q6. The coverage & capacity of CDMA system is more than that of GSM system


a). True
b). False
c). Equal
d). None of the above


Q7. The type of Access technology which can enhance the battery life is


a). CDMA
b). TDMA
c). OFDMA
d). None of the above


Q8. The uplink frequency of P-GSM system is


a). 1850-1910Mhz
b). 1710-1785Mhz
c). 890-915 Mhz
d). None of the above


Q9. The technique adopted to increase the system capacity and reduce co-chl interference is


a). High power BTS
b). By installing the Omnidirectional antenna
c). Sectorisation
d). None of the above


Q10. The remote and sparsely populated areas will be covered by


a). Microcell
b). Macrocell
c). Picocell
d). None of the above


Q11. The cell having the same number in the adjacent cluster using the same set of RF channels are termed as


a). adjacent cell
b). Co channel cell
c). Macro cell
d). Selective Cell


Q12. Higher value of Q is achievable in


a). big cluster size
b). small cluster size
c). medium cluster size
d). None of the above


Q13. The process of channel coding, Encryption, Multiplexing and modulation for Trans direction and reverse for reception are to be carried out by


a). BTS
b). BSC
c). MS
d). None of the above


Q14. The terminal is under observation from the network for possible problems. Under which list will this belong in EIR


a). White List
b). Grey List
c). Black List
d). None of the above


Q15. Modulation technique used in DECT is


a). GFSK
b). QPSK
c). BPSK
d). None of the above


Q16. The broad spectrum of the transmitted signal gives rise to


a). Fadiing
b). Noise
c). Spread Spectrum
d). All Of the above


Q17. Which of these are Digital Cellular Technologies


a). IS:54 / IS-136 – N America
b). GSM – Europe and Asia
c). IS-95 – N America
d). All of the above


Q18. Which of these block processes CDMA channels, and performs digital and analogue signal processing for IS-95A calls of each channel and interface with the RF block.


a). BHI
b). CCB
c). TCP
d). None of the above


Q19. What is channel assignment ? what are the types?


a) For efficient utilization of radio spectrum a frequency reuse scheme with increasing capacity and minimizing interference is required.
b). For efficient utilization of radio spectrum a frequency reuse scheme with increasing capacity and maximizing interference is required.
c). a & b
d). None of the above


Q20. what are the types of channel assignment?


a) Fixed channel assignment, dynamic channel assignment.
b). moderate channel assignment
c). a & b
d). None of the above


Q21. What is fixed channel assignment?


a) If the channels in each cell are allocated to the users within the cell, it will be called as fixed channel assignment. If all channels are occupied, the call Will be blocked.
b If the channels in each cell are allocated to the users within the cell, it will be called as fixed channel assignment. If all channels are occupied, the call Will not be blocked.
c). a & b
d). None of the above


Q22. What is dynamic channel assignment?


(a) If the voice channels are not allocated permanently in a cell, it will be called as dynamic channel assignment. In this assignment, channels are dynamically allocated to users by the MSC.
b). If the voice channels are allocated permanently in a cell, it will be called as dynamic channel assignment. In this assignment, channels are dynamically allocated to users by the MSC.
c). a & b
d). None of the above


Q22. What is hand off?


(a) When a mobile moves into a different cell while conversation in progress, the MSC automatically transfers the call from one cell to other cell without any interference. This is called as hand off.
b). When a mobile moves into a different cell while conversation in progress, the MSC automatically transfers the call from one cell to other cell with interference. This is called as hand off.
c). a & b
d). None of the above

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