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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. Refer to the exhibit, which shows a conditions list from the 1830 PSS GUI. (i) What is the total number of alarms reported? (ii) How many service affecting alarms are displayed? (iii) How many conditions are displayed?

A) (I) total number of alarms = 5
(ii) number of serviceaffectingalarms = 2
(Hi) number of conditions = 14
B) (i) total number of alarms = 7
(ii) number of service affecting alarms = 5
(Hi) number of conditions = 7
C) (i) total number of alarms = 4
(ii) number of service affecting alarms = 14
(iii) number of conditions = 2
D) (i) total number of alarms = 2
(ii) number of service affecting alarms = 2
(Hi) number of conditions = 18

2. Consider the exhibit. Given the following power readings, what is the calculated span loss from Node A to Node B?

A) 8.0
B) 11.5
C) 2.5
D) 1.5

3. Which of the following statements about the Wavelength Tracker (WT) capability is TRUE?

A) Wave Keys are originated by optical amplifiers.
B) WT is compatible with other vendor domains, but the user must make sure that Wave Keys are unique on the crossed domains.
C) WT uses a unique identifier based on a pair of numbers encoded by Raman amplifiers into each service wavelength direction.
D) WT uses a unique identifier based on a pair of numbers encoded by Optical Transponders OTs) into each service wavelength direction.

4. Which of the following Performance Measurement (PM) type is NOT typically retrieved at an Optical Transponder (OT) line interface?

A) Forward Error Correction - Errors Counted (FEC-EC)
B) Digital Wrapper (DW)
C) Ethernet collision counters
D) Optical Power Received (OPR)

Solutions: