Cisco Exam Questions

What is the worst case optical signal-to-noise ratio (OSNR) of Channel 1 at 0.5nm away from the peak

Click the Exhibit button to view the graph.

The graph represents optical signal power versus wavelength measurement from 1550nm to
1560nm. What is the worst case optical signal-to-noise ratio (OSNR) of Channel 1 at 0.5nm away
from the peak?

A.
21dB

B.
24dB

C.
27dB

D.
30dB

E.
33dB