MCQOPTIONS
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MCQOPTIONS
This section includes 21 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. |
Frequency domain channel sounding technique do not require hard wired synchronization between transmitter and receiver. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
There is no relationship between time domain and frequency domain techniques. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following is a disadvantage of spread spectrum channel sounding system? |
| A. | Passband noise |
| B. | Less coverage area |
| C. | Large transmitter power required |
| D. | Not in real time |
| Answer» E. | |
| 4. |
The ratio between transmitter chip clock rate and the difference between the transmitter chip clock and difference between transmitter and receiver chip clock rates is called ___________ |
| A. | Slide factor |
| B. | Chip factor |
| C. | Reuse factor |
| D. | Shape factor |
| Answer» B. Chip factor | |
| 5. |
If a PN sequence has chip duration of Tc, then chip rate is given by ___________ |
| A. | Tc |
| B. | 1/Tc |
| C. | 2 Tc |
| D. | Tc2 |
| Answer» C. 2 Tc | |
| 6. |
Direct RF pulse systems are complex. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
WHICH_OF_THE_FOLLOWING_IS_NOT_AN_ADVANTAGE_OF_SPREAD_SPECTRUM_CHANNEL_SOUNDING_SYSTEM??$ |
| A. | Rejection of passband noise |
| B. | Real time |
| C. | Coverage range improvement |
| D. | Less transmitter power required |
| Answer» C. Coverage range improvement | |
| 8. |
There is no relationship between time domain and frequency domain techniques. State whether True or False.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Which_of_the_following_is_a_disadvantage_of_spread_spectrum_channel_sounding_system?$ |
| A. | Passband noise |
| B. | Less coverage area |
| C. | Large transmitter power required |
| D. | Not in real time |
| Answer» E. | |
| 10. |
Faster sweep time can be accomplished by ________ |
| A. | Increasing frequency steps |
| B. | Increasing time slots |
| C. | Reducing time slots |
| D. | Reducing frequency steps |
| Answer» E. | |
| 11. |
Frequency domain channel sounding system is _______ in nature. |
| A. | Real time |
| B. | Digital |
| C. | Non real time |
| D. | Analog |
| Answer» D. Analog | |
| 12. |
Frequency domain channel sounding technique do not require hard wired synchronization between transmitter and receiver.(True/False) |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
Transmissivity is a _________ domain response. |
| A. | Time |
| B. | Frequency |
| C. | Time-frequency |
| D. | Spatial |
| Answer» C. Time-frequency | |
| 14. |
The ratio between transmitter chip clock rate and the difference between the transmitter chip clock and difference between transmitter and receiver chip clock rates is called __________? |
| A. | Slide factor |
| B. | Chip factor |
| C. | Reuse factor |
| D. | Shape factor |
| Answer» B. Chip factor | |
| 15. |
The maximal length of PN sequence, the sequence length for n number of shift register is ______ |
| A. | 2<sup>n</sup> |
| B. | 1/2<sup>n</sup> |
| C. | 2<sup>n</sup> -1 |
| D. | 2<sup>n</sup> +1 |
| Answer» D. 2<sup>n</sup> +1 | |
| 16. |
If a PN sequence has chip duration of Tc, then chip rate is given by ____- |
| A. | T<sub>c</sub> |
| B. | 1/ T<sub>c</sub> |
| C. | 2 T<sub>c</sub> |
| D. | T<sub>c</sub><sup>2</sup> |
| Answer» C. 2 T<sub>c</sub> | |
| 17. |
Spread spectrum sliding correlator has better ________ in comparison to RF pulse system. |
| A. | Dynamic range |
| B. | Frequency |
| C. | Power density |
| D. | Structure |
| Answer» B. Frequency | |
| 18. |
Why is the phase of individual multipath components are not received in RF Pulse system? |
| A. | Due to use of duplexer |
| B. | Due to use of ADC |
| C. | Due to use of flip flops |
| D. | Due to use of envelope detector |
| Answer» E. | |
| 19. |
What is the main disadvantage of RF pulse system? |
| A. | Complexity |
| B. | Not real time |
| C. | Interference and noise |
| D. | Simplicity |
| Answer» D. Simplicity | |
| 20. |
Direct RF pulse systems are complex. (True/False) |
| A. | True |
| B. | False |
| Answer» C. | |
| 21. |
Which of the following is not a small scale multipath measurement technique? |
| A. | Indirect pulse measurement |
| B. | Direct pulse measurement |
| C. | Spread spectrum sliding correlator measurement |
| D. | Swept frequency measurement |
| Answer» B. Direct pulse measurement | |