MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
CDMA uses |
| A. | Hard hand off |
| B. | Soft hand off |
| C. | Hard & Soft hand off |
| D. | None of the mentioned |
| Answer» C. Hard & Soft hand off | |
| 2. |
Frequency planning is very essential in |
| A. | FDMA |
| B. | TDMA |
| C. | FDMA & TDMA |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
CDMA rejects |
| A. | Narrow band interference |
| B. | Wide band interference |
| C. | Narrow & Wide band interference |
| D. | None of the mentioned |
| Answer» B. Wide band interference | |
| 4. |
FREQUENCY_PLANNING_IS_VERY_ESSENTIAL_IN?$ |
| A. | FDMA |
| B. | TDMA |
| C. | FDMA & TDMA |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 5. |
CDMA uses$ |
| A. | Hard hand off |
| B. | Soft hand off |
| C. | Hard & Soft hand off |
| D. | None of the mentioned |
| Answer» C. Hard & Soft hand off | |
| 6. |
CDMA reject? |
| A. | Narrow band interference |
| B. | Wide band interference |
| C. | Narrow & Wide band interference |
| D. | None of the mentioned |
| Answer» B. Wide band interference | |
| 7. |
Which is more suitable when large number of transmitters are used? |
| A. | Synchronous CDMA |
| B. | Asynchronous CDMA |
| C. | Synchronous & Asynchronous CDMA |
| D. | None of the mentioned |
| Answer» C. Synchronous & Asynchronous CDMA | |
| 8. |
Which uses orthogonal codes? |
| A. | Synchronous CDMA |
| B. | Asynchronous CDMA |
| C. | Synchronous & Asynchronous CDMA |
| D. | None of the mentioned |
| Answer» B. Asynchronous CDMA | |
| 9. |
Which is more simpler to implement? |
| A. | Direct sequence spread spectrum |
| B. | Frequency hopping spread spectrum |
| C. | Time hopping spread spectrum |
| D. | None of the mentioned |
| Answer» B. Frequency hopping spread spectrum | |
| 10. |
Which is more bandwidth efficient? |
| A. | Direct sequence spread spectrum |
| B. | Frequency hopping spread spectrum |
| C. | Time hopping spread spectrum |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 11. |
Which is better for avoiding jamming? |
| A. | Direct sequence spread spectrum |
| B. | Frequency hopping spread spectrum |
| C. | Time hopping spread spectrum |
| D. | None of the mentioned |
| Answer» C. Time hopping spread spectrum | |
| 12. |
Processing gain is the ratio of message bandwidth to signal bandwidth. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
Some advantages of spread spectrum are |
| A. | Low susceptibility |
| B. | Immunity to jamming |
| C. | Reduced interference |
| D. | All of the mentioned |
| Answer» E. | |