| 1. | Which of the following multiple access techniques are used by second generation cellular systems? |
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Answer: (b).TDMA/FDD and CDMA/FDD
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| 2. | Which one is not a TDMA standard of second generation networks? |
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Answer: (c).AMPS
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| 3. | Which of the following is a CDMA standard of second generation network? |
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Answer: (a).IS-95
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| 4. | Popular 2G CDMA standard IS-95 is also known as ______________ |
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Answer: (a).CdmaOne
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| 5. | How many users or voice channels are supported for each 200 KHz channel in GSM? |
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Answer: (a).Eight
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| 6. | How many voice channels are supported for each 30 KHz radio channel in IS-136? |
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Answer: (c).Three
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| 7. | How many users are supported in IS-95 for each 1.25 MHz? |
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Answer: (b).Sixty four
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| 8. | Which modulation technique is used by GSM? |
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Answer: (a).GMSK
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| 9. | IS-95 uses which modulation technique? |
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Answer: (b).BPSK
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| 10. | IS-136 uses which modulation technique? |
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Answer: (a).π/4 DQPSK
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