Mobile Communication 3

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Electronic Engineering MCQ Question Papers: ENTC, IT Interview Placement

Subject: Mobile Communication 3

Part 3: List for questions and answers of Mobile Communication


Q1. Paging systems were based on

a) simplex systems

b) Half duplex systems

c) Full duplex systems

d) None of the above


Q2. Paging systems could be used to

a) Send numeric messages

b) Send alphanumeric messages

c) Voice message

d) all of the above


Q3. Garage door opener is a

a) transmitter

b) Receiver

c) Transceiver

d) None of the above


Q4. Carrier frequency of a tv remote control is in the range

a) of infra red

b) Less than100mhz

c) Less than 1 ghz

d) Less than 2ghz


Q5. Pcn is

a) Wireless concept of making calls

b) For receiving calls

c) Irrespective of the location of the user

d) all of the above


Q6. Imt-2000 is a digital mobile system that functions as

a) Pager

b) Cordless

c) Low earth orbit satellites

d) all of the above 


Q7. The 2g cellular network uses

a) Tdma/fdd

b) Cdma/ fdd

c) Digital modulation formats

d) all of the above


Q8. Nadc is a 2g standard for

a) tdma

b) Cdma

c) Fdma

d) None of the above


Q9. 2g cdma standard – cdmaone supports up to

a) 8 users

b) 64 users

c) 32 users

d) 116 users


Q10. 2g standards support

a) Limited internet browsing

b) Short messaging service

c) both a) and b)

d) None of the above


Q11. The 2g gsm technology uses a carrier separation of

a) 1.25 mhz

b) 200 khz

c) 30 khz

d) 300 khz


Q12. 3g w-cdma is also known as

a) umts

b) Dect

c) Dcs-1800

d) Etacs


Q13. Commonly used mode for 3g networks is

a) Tdma

b) Fdma

c) Tdd

d) fdd 


Q14. The minimum spectrum allocation required for w-cdma is

a) 5mhz

b) 2mhz

c) 500khz

d) 100khz


Q15. Cdma2000 1xev provides high speed data access with channel allocation of

a) 5mhz

b) 50 mhz

c) 1.25 mhz

d) 4mhz


Q16. In td-sdma, there is a frame of _______ milliseconds and the frame is divided into _____ time slots

a) 5, 7

b) 7, 5

c) 2, 5

d) 5, 2


Q17. The interference between the neighboring base stations is avoided by

a) assigning different group of channels

b) Using transmitters with different power level

c) Using different antennas

d) All of the above


Q18. Radio capacity may be increased in cellular concept by

a) Increase in radio spectrum

b) increasing the number of base stations and reusing the channels

c) Both a and b

d) None of the above


Q19. The shape for the cellular region for maximum radio coverage is

a) Circular

b) Square

c) Oval

d) hexagon 


Q20. Hexagon shape is used for radio coverage for a cell because

a) It uses the maximum area for coverage

b) Fewer number of cells are required

c) It approximates circular radiation pattern

d) all of the above 


Part 3: List for questions and answers of Mobile Communication


Q1. Answer: a


Q2. Answer: d


Q3. Answer: a


Q4. Answer: a


Q5. Answer: d


Q6. Answer: d


Q7. Answer: d


Q8. Answer: d


Q9. Answer: b


Q10. Answer: c


Q11. Answer: b


Q12. Answer: a


Q13. Answer: d


Q14. Answer: a


Q15. Answer: c


Q16. Answer: a


Q17. Answer: a


Q18. Answer: b


Q19. Answer: d


Q20. Answer: d