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. |
Range of time difference of the zero crossing gives the value of |
| A. | Width |
| B. | Distortion |
| C. | Timing jitter |
| D. | Noise margin |
| Answer» D. Noise margin | |
| 2. |
The _______ of the opening of eye pattern indicates the time over which the sampling for detection might be performed. |
| A. | Length |
| B. | Width |
| C. | X-axis value |
| D. | Y-axis value |
| Answer» C. X-axis value | |
| 3. |
Channel’s phase response must be a linear function of |
| A. | Time |
| B. | Frequency |
| C. | Time & Frequency |
| D. | None of the mentioned |
| Answer» C. Time & Frequency | |
| 4. |
RANGE_OF_TIME_DIFFERENCE_OF_THE_ZERO_CROSSING_GIVES_THE_VALUE_OF?$ |
| A. | Width |
| B. | Distortion |
| C. | Timing jitter |
| D. | Noise margin |
| Answer» D. Noise margin | |
| 5. |
The _______ of the opening of eye pattern indicates the time over which the sampling for detection might be performed? |
| A. | Length |
| B. | Width |
| C. | X-axis value |
| D. | Y-axis value |
| Answer» C. X-axis value | |
| 6. |
Symbol spaced has ____ sample per symbol and fractionally spaced has ___ samples per symbol. |
| A. | One, many |
| B. | Many, one |
| C. | One, one |
| D. | Many, many |
| Answer» B. Many, one | |
| 7. |
Transversal equalizers are ________ and decision feedback equalizers are ______ |
| A. | Feed forward, feed back |
| B. | Feed back, feed forward |
| C. | Feed forward, feed forward |
| D. | Feedback, feedback |
| Answer» B. Feed back, feed forward | |
| 8. |
The filters used with the equalizer is of ______ types. |
| A. | Feed forward |
| B. | Feed backward |
| C. | Feed forward and feedback |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 9. |
The maximum likelihood sequence estimator adjusts _______ according to _____ environment. |
| A. | Receiver, transmitter |
| B. | Transmitter, receiver |
| C. | Receiver, receiver |
| D. | None of the mentioned |
| Answer» B. Transmitter, receiver | |
| 10. |
Equalization process includes |
| A. | Maximum likelihood sequence estimation |
| B. | Equalization with filters |
| C. | Maximum likelihood sequence estimation & Equalization with filters |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 11. |
Phase distortion occurs when |
| A. | Phase response is function of frequency |
| B. | Phase response is not a function of frequency |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» C. All of the mentioned | |
| 12. |
Amplitude distortion occurs when |
| A. | Impulse response is not constant |
| B. | Impulse response is constant |
| C. | Frequency transfer function is constant |
| D. | Frequency transfer function is not constant |
| Answer» E. | |
| 13. |
Channel’s phase response must be a linear function of |
| A. | Time |
| B. | Frequency |
| C. | Time & Frequency |
| D. | None of the mentioned |
| Answer» C. Time & Frequency | |