MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Wireless Mobile Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In slow fading channel, Doppler spread of the channel is much less than the ________ of baseband signal. |
| A. | Symbol period |
| B. | Phase |
| C. | Coherence time |
| D. | Bandwidth |
| Answer» E. | |
| 2. |
Frequency selective fading does not induce intersymbol interference. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
In a frequency selective fading, mobile radio channel possess a constant gain and a linear phase over bandwidth smaller than bandwidth of transmitted signal. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Flat fading channel is also known as _______________ |
| A. | Amplitude varying channel |
| B. | Wideband channel |
| C. | Phase varying channel |
| D. | Frequency varying channel |
| Answer» B. Wideband channel | |
| 5. |
Spectral characteristics of the channel changes with time in flat fading. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
FOR_FAST_FADING_CHANNEL,_THE_COHERENCE_TIME_OF_THE_CHANNEL_IS_SMALLER_THAN_________OF_TRANSMITTED_SIGNAL.?$ |
| A. | Doppler spread |
| B. | Bandwidth |
| C. | Symbol period |
| D. | Coherence bandwidth |
| Answer» D. Coherence bandwidth | |
| 7. |
In_slow_fading_channel,_Doppler_spread_of_the_channel_is_much_less_than_the__________of_baseband_signal.$ |
| A. | Symbol period |
| B. | Phase |
| C. | Coherence time |
| D. | Bandwidth |
| Answer» E. | |
| 8. |
Frequency selective fading does not induce intersymbol interference. State whether True or False? |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Frequency selective fading channels are also known as ________ |
| A. | Narrowband channel |
| B. | Wideband channel |
| C. | Amplitude varying channel |
| D. | Phase varying channel |
| Answer» C. Amplitude varying channel | |
| 10. |
In a frequency selective fading, mobile radio channel possess a constant gain and a linear phase over bandwidth smaller than bandwidth of transmitted signal. State whether True or False. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Flat fading channel is also known as _____ |
| A. | Amplitude varying channel |
| B. | Wideband channel |
| C. | Phase varying channel |
| D. | Frequency varying channel |
| Answer» B. Wideband channel | |
| 12. |
Spectral characteristics of the channel changes with time in flat fading. State whether True or False. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
Which of the following s not a characteristic of flat fading? |
| A. | Mobile radio channel has constant gain |
| B. | Linear phase response |
| C. | Non linear phase response |
| D. | Bandwidth is greater than the bandwidth of transmitted signal |
| Answer» D. Bandwidth is greater than the bandwidth of transmitted signal | |
| 14. |
______ leads to time dispersion and frequency selective fading. |
| A. | Doppler spread |
| B. | Multipath delay spread |
| C. | Time dispersive parameters |
| D. | Frequency delay spread |
| Answer» C. Time dispersive parameters | |
| 15. |
Which of the following is not a channel parameter? |
| A. | Bandwidth |
| B. | Coherence time |
| C. | Rms delay spread |
| D. | Doppler spread |
| Answer» B. Coherence time | |