MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The use of __________ was undertaken to separate the polarization in an analog to digital conversion. |
| A. | FSK |
| B. | DSP |
| C. | ASK |
| D. | DP-FSK |
| Answer» C. ASK | |
| 2. |
The asynchronous heterodyne detection is _________ more sensitive than the dual filter direct detection FSK receiver. |
| A. | 0.9 dB |
| B. | 0.23 dB |
| C. | 0.43 dB |
| D. | 0.40 dB |
| Answer» E. | |
| 3. |
FSK synchronous detection is _________ more sensitive than asynchronous heterodyne detection. |
| A. | 0.24 dB |
| B. | 0.45 dB |
| C. | 0.9 dB |
| D. | 0.12 dB |
| Answer» C. 0.9 dB | |
| 4. |
___________ can also be used in place of multilayered filters in the dual filter direct detection FSK receiver. |
| A. | Bragg gratings |
| B. | Ceramic gratings |
| C. | Aluminum arsenide |
| D. | Bragg diodes |
| Answer» B. Ceramic gratings | |
| 5. |
BER of FSK modulation scheme is ________ as/to the ASK modulation scheme. |
| A. | Twice |
| B. | Thrice |
| C. | Unequal |
| D. | Same |
| Answer» E. | |
| 6. |
FSK modulation is attributed to the use of __________ frequencies unlike ASK modulation. |
| A. | One |
| B. | Three |
| C. | Two |
| D. | Four |
| Answer» D. Four | |
| 7. |
ASK with heterodyne detection can achieve same SNR limit as ASK with asynchronous detection. |
| A. | True |
| B. | False |
| Answer» B. False | |