MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communication knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the typical range of the noise figure? |
| A. | 1 – 2 dB |
| B. | 3 – 5 dB |
| C. | 7 – 11 dB |
| D. | 12 – 14 dB |
| Answer» D. 12 – 14 dB | |
| 2. |
How many factors govern the noise figure of the device? |
| A. | Four |
| B. | Three |
| C. | Two |
| D. | One |
| Answer» B. Three | |
| 3. |
__________ is the ratio of input signal to noise ratio to the output signal to noise ratio of the device. |
| A. | Fiber dispersion |
| B. | Noise figure |
| C. | Transmission rate |
| D. | Population inversion |
| Answer» C. Transmission rate | |
| 4. |
_________________ imposes serious limitations on the system performance. |
| A. | Fiber attenuation |
| B. | Fiber modulation |
| C. | Fiber demodulation |
| D. | Fiber dispersion |
| Answer» E. | |
| 5. |
_____________ are transparent to any type of signal modulation. |
| A. | Repeaters |
| B. | Optical amplifiers |
| C. | Modulators |
| D. | Circulators |
| Answer» C. Modulators | |
| 6. |
_________ reconstitutes a transmitted digital optical signal. |
| A. | Repeaters |
| B. | Optical amplifiers |
| C. | Modulators |
| D. | Circulators |
| Answer» B. Optical amplifiers | |
| 7. |
Repeaters are bidirectional. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
The term flexibility, in terms of optical amplifiers means the ability of the transmitted signal to remain in the optical domain in a long haul link. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
__________________IMPOSES_SERIOUS_LIMITATIONS_ON_THE_SYSTEM_PERFORMANCE.?$ |
| A. | Fiber attenuation |
| B. | Fiber modulation |
| C. | Fiber demodulation |
| D. | Fiber dispersion |
| Answer» E. | |
| 10. |
______________ARE_TRANSPARENT_TO_ANY_TYPE_OF_SIGNAL_MODULATION.?$ |
| A. | Repeaters |
| B. | Optical amplifiers |
| C. | Modulators |
| D. | Circulators |
| Answer» C. Modulators | |
| 11. |
_________ reconstitutes a transmitted digital optical signal? |
| A. | Repeaters |
| B. | Optical amplifiers |
| C. | Modulators |
| D. | Circulators |
| Answer» B. Optical amplifiers | |
| 12. |
Which of the following is not an application of optical amplifier? |
| A. | Power amplifier |
| B. | In-line repeater amplifier |
| C. | Demodulator |
| D. | Preamplifier |
| Answer» D. Preamplifier | |
| 13. |
The _________________ increases the system reliability in the event of an individual amplifier failure. |
| A. | Simplex configuration |
| B. | Duplex configuration |
| C. | Serial configuration |
| D. | Parallel multi-amplifier configuration |
| Answer» E. | |
| 14. |
It is necessary to ____________ the optical carriers at different speeds to avoid signal interference. |
| A. | Inculcate |
| B. | Reduce |
| C. | Intensity-modulate |
| D. | Demodulate |
| Answer» D. Demodulate | |
| 15. |
How many configurations are available for employment of optical amplifiers? |
| A. | Three |
| B. | Four |
| C. | Two |
| D. | Five |
| Answer» B. Four | |
| 16. |
Which of the following is not a drawback of regenerative repeater? |
| A. | Cost |
| B. | Bandwidth |
| C. | Complexity |
| D. | Long haul applications |
| Answer» E. | |