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This section includes 17 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. |
Which of the following is a drawback of UWB technology? |
A. | Not appropriate for WAN |
B. | Power limited |
C. | Small spectrum |
D. | Limited jitter requirements |
Answer» E. | |
2. |
UWB systems are very complex, since they use radio frequency/intermediate frequency conversion stages. |
A. | True |
B. | False |
Answer» C. | |
3. |
UWB technology supports low bit rate and low speed. |
A. | True |
B. | False |
Answer» C. | |
4. |
The coherent interaction of signals in UWB arriving by many paths causes ____________ |
A. | Ricean fading |
B. | Nakagami fading |
C. | Rayleigh fading |
D. | Multicast fading |
Answer» D. Multicast fading | |
5. |
In TM–UWB, the system uses a modulation technique called _______ |
A. | Pulse width modulation |
B. | Pulse code modulation |
C. | Pulse position modulation |
D. | Pulse amplitude modulation |
Answer» D. Pulse amplitude modulation | |
6. |
The basic element in DSC–UWB technology is the monocycle wavelet. |
A. | True |
B. | False |
Answer» C. | |
7. |
UWB operates across narrow bandwidth. |
A. | True |
B. | False |
Answer» C. | |
8. |
UWB_SYSTEMS_ARE_VERY_COMPLEX,_SINCE_THEY_USE_RADIO_FREQUENCY/INTERMEDIATE_FREQUENCY_CONVERSION_STAGES._STATE_WHETHER_TRUE_OR_FALSE.?$ |
A. | True |
B. | False |
Answer» C. | |
9. |
Which of the following is not a drawback of UWB technology?$ |
A. | Not appropriate for WAN |
B. | Power limited |
C. | Small spectrum |
D. | Limited jitter requirements |
Answer» E. | |
10. |
Which of the following is not true for UWB? |
A. | Large spectrum |
B. | Lower price |
C. | Pulse data |
D. | Large interference |
Answer» E. | |
11. |
UWB technology supports low bit rate and low speed. State whether True or False. |
A. | True |
B. | False |
Answer» C. | |
12. |
The coherent interaction of signals in UWB arriving by many paths causes ______ |
A. | Ricean fading |
B. | Nakagami fading |
C. | Rayleigh fading |
D. | Multicast fading |
Answer» D. Multicast fading | |
13. |
DSC-UWB uses _________ |
A. | Pulse width modulation |
B. | Pulse code modulation |
C. | Pulse position modulation |
D. | Direct sequence modulation |
Answer» E. | |
14. |
In TM–UWB, the system uses a modulation technique called _______$ |
A. | Pulse width modulation |
B. | Pulse code modulation |
C. | Pulse position modulation |
D. | Pulse amplitude modulation |
Answer» D. Pulse amplitude modulation | |
15. |
The basic element in DSC–UWB technology is the monocycle wavelet.$ |
A. | True |
B. | False |
Answer» C. | |
16. |
UWB operates across narrow bandwidth. State whether True or False. |
A. | True |
B. | False |
Answer» C. | |
17. |
_________ also known as impulse or zero-carrier radio technology. |
A. | Ultra wideband technology |
B. | Femtocell technology |
C. | Multicasting |
D. | Multiplexing |
Answer» B. Femtocell technology | |