MCQOPTIONS
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MCQOPTIONS
This section includes 20 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 reuse factor for CDMA system is ___________ |
| A. | One |
| B. | Two |
| C. | Zero |
| D. | Ten |
| Answer» B. Two | |
| 2. |
Capacity of CDMA can be increased by operating in DTX, which stands for _______ |
| A. | Discrete transmission mode |
| B. | Discrete transmission modulation |
| C. | Discontinuous transmission mode |
| D. | Digital transmission mode |
| Answer» D. Digital transmission mode | |
| 3. |
In a CDMA system, link performance for each user __________ as the number of users _______ |
| A. | Increase, decrease |
| B. | Increase, increase |
| C. | Decrease, increase |
| D. | Decrease, decrease |
| Answer» B. Increase, increase | |
| 4. |
Capacity of CDMA is bandwidth limited. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
__________ allows subscribers to monitor neighbouring base stations. |
| A. | TDMA |
| B. | MAHO |
| C. | FDMA |
| D. | ACA |
| Answer» C. FDMA | |
| 6. |
In practice, TDMA systems improve capacity by ____________ compared to analog cellular systems. |
| A. | Three to six times |
| B. | Equal capacity |
| C. | Two time |
| D. | Ten to twenty times |
| Answer» B. Equal capacity | |
| 7. |
If D is the distance between co-channel cells and R be the cell radius, co-channel reuse ratio is given by __________ |
| A. | D*R |
| B. | D2/R |
| C. | D/R |
| D. | D/R2 |
| Answer» D. D/R2 | |
| 8. |
____________ is the maximum number of channels that can be provided in a fixed frequency band. |
| A. | Channel capacity |
| B. | Radio capacity |
| C. | Spectral capacity |
| D. | Carrier capacity |
| Answer» B. Radio capacity | |
| 9. |
CAPACITY_OF_CDMA_IS_BANDWIDTH_LIMITED._STATE_WHETHER_TRUE_OR_FALSE.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Capacity of CDMA can be increased by operating in DTX, which stands for _______$ |
| A. | Discrete transmission mode |
| B. | Discrete transmission modulation |
| C. | Discontinuous transmission mode |
| D. | Digital transmission mode |
| Answer» D. Digital transmission mode | |
| 11. |
In_a_CDMA_system,_link_performance_for_each_user________as_the_number_of_users________$ |
| A. | Increase, decrease |
| B. | Increase, increase |
| C. | Decrease, increase |
| D. | Decrease, decrease |
| Answer» B. Increase, increase | |
| 12. |
Frequency_reuse_factor_for_CDMA_system_is______ |
| A. | One |
| B. | Two |
| C. | Zero |
| D. | Ten |
| Answer» B. Two | |
| 13. |
Which of the following standard had not adopted digital TDMA for high capacity? |
| A. | USDC |
| B. | GSM |
| C. | PDC |
| D. | IS-95 |
| Answer» E. | |
| 14. |
Time division multiple access introduces ACA, which stands for ________ |
| A. | Acute carrier allocation |
| B. | Adaptive carrier allocation |
| C. | Adaptive channel allocation |
| D. | Acute channel allocation |
| Answer» D. Acute channel allocation | |
| 15. |
_____ allows subscribers to monitor neighbouring base stations. |
| A. | TDMA |
| B. | MAHO |
| C. | FDMA |
| D. | ACA |
| Answer» C. FDMA | |
| 16. |
In practice, TDMA systems improve capacity by _______- compared to analog cellular systems. |
| A. | Three to six times |
| B. | Equal capacity |
| C. | Two time |
| D. | Ten to twenty times |
| Answer» B. Equal capacity | |
| 17. |
__________ is the interference at a base station receiver that comes from the subscriber units in the surrounding cells. |
| A. | Forward channel interference |
| B. | Carrier interference |
| C. | Receiver interference |
| D. | Reverse channel interference |
| Answer» E. | |
| 18. |
If D is the distance between co-channel cells and R be the cell radius, co-channel reuse ratio is given by ____ |
| A. | D*R |
| B. | D<sup>2</sup>/R |
| C. | D/R |
| D. | D/R<sup>2</sup> |
| Answer» D. D/R<sup>2</sup> | |
| 19. |
Which of the following measures spectrum efficiency of a wireless system? |
| A. | Channel capacity |
| B. | Radio capacity |
| C. | Spectral capacity |
| D. | Carrier capacity |
| Answer» C. Spectral capacity | |
| 20. |
______ is the maximum number of channels that can be provided in a fixed frequency band. |
| A. | Channel capacity |
| B. | Radio capacity |
| C. | Spectral capacity |
| D. | Carrier capacity |
| Answer» B. Radio capacity | |