Communication Engineering Quiz

1. Channel bandwidth of each channel in GSM system is

A. 250 KHz
B. 200 KHz
C. 225 KHz
D. 175 KHz


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B. 200 KHz

2. Channel bandwidth of each channel in CDMA system is

A. 1050 KHz
B. 950 KHz
C. 1250 KHz
D. 850 KHz


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C. 1250 KHz

3. Multiple access technique used in GSM system is

A. T-FDMA
B. CDMA
C. FDMA
D. TDMA


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D. TDMA

4. The multiple access technology used in IS-95 system is

A. TDMA
B. CDMA
C. FDMA
D. None of above


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B. CDMA

5. Modulation technique used in GSM system is

A. FSK
B. ASK
C. GMSK
D. PSK


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C. GMSK

6. Modulation technique used in IS-95, CDMA system is

A. ASK
B. FSK
C. BPSK/QPSK
D. QAM


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C. BPSK/QPSK

7. Data Rate possible using GSM system is

A. 500 kbps
B. 700.833 Kbps
C. 933.833 kbps
D. 270.833 kbps


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D. 270.833 kbps

8. Data rate possible using IS-95 CDMA system is

A. 100 kbps
B. 200 kbps
C. 300 kbps
D. 9.6 to 14.4 kbps


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D. 9.6 to 14.4 kbps

9. One frame period in GSM system is

A. 19.615 ms
B. 12.615 ms
C. 4.615 ms
D. 8.615 ms


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C. 4.615 ms

10. One frame period in IS-95 CDMA system is

A. 60 ms
B. 20 ms
C. 40 ms
D. 80 ms


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B. 20 ms