Q1. What is the definition of OSNR?
A.The OSNR is defined as the ratio between the transmitted optical power and the received optical power over 1 km of fiber including both signal and optical noise.
B. The OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.
C. The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth.
D. The OSNR is defined as the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.
Correct Answer: C
Q2. Which application generates the commissioning file(s)?
A.NFM-T
B. NSP
C. CPB
D. EPT
Correct Answer: C
Q3. Which statement is correct about the NFM-T network map?
A.It automatically represents all nodes grouped by the location string assigned during the NE creation.
B. It represents all supervised nodes grouped by alarm status (with a different color).
C. It allows context sensitive navigation and represents nodes and related physical connections with different colors. depending on the active alarms.
D. It allows the graphical visualization of the services deployed in the network with the details of the boards involved in the service.
Correct Answer: C
Q4. Which of the following statements is true about chromatic dispersion (CD)?
A.Different channels have different bandwidth and this causes different CD performances.
B. The fiber attenuation changes along the fiber, and when the light crosses these differences the CD takes place.
C. Different wavelengths propagate at different speeds within the same media and therefore different colors travel in the fiber with different speed.
D. The fiber attenuation introduces inter-channel interference.
Correct Answer: C
Q5. What is the definition of OSNR?
A.The OSNR is defined as the ratio between the transmitted optical power and the received optical power over 1 km of fiber including both signal and optical noise.
B. The OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.
C. The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth.
D. The OSNR is defined as the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.
Correct Answer: C
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