| 1. | Multiple access schemes are used to allow ________ mobile users to share simultaneously a finite amount of radio spectrum. |
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Answer: (a).Many
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| 2. | The technique that makes possible the task of listening and talking in communication system is called ________ |
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Answer: (b).Duplexing
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| 3. | Frequency division duplexing provides ________ distinct bands of frequencies for _________ user. |
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Answer: (c).Two, one
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| 4. | The forward band in FDD provides traffic from the mobile to base station. |
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Answer: (b).False
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| 5. | The frequency separation between each forward and reverse channel changes throughout the system. |
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Answer: (b).False
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| 6. | Time division duplexing uses ________ to provide both a forward and reverse link. |
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Answer: (b).Time
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| 7. | TDD is effective for _________ |
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Answer: (a).Fixed wireless access and users are stationary
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| 8. | In wideband systems, the transmission bandwidth of a single channel _________ coherence bandwidth of the channel. |
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Answer: (c).Larger than
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| 9. | In narrowband system, the channels are usually operated using TDD. |
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Answer: (b).False
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| 10. | Narrowband FDMA allows users to share the same radio channel allocating a unique time slot to each user. |
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Answer: (b).False
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