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Nokia Optical Network Services Expert Nokia Optical Diagnostics and Troubleshooting Exam

Nokia Optical Diagnostics and Troubleshooting Exam

Last Update Feb 18, 2026
Total Questions : 40

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Questions 2

Which of the following statements best describes the output of the command: show xc 1?

Options:

A.  

OCH trail name, ITU channel, administrative/operational states, protection states, and Wave Keys for both directions.

B.  

A list of cross-connections, including A-end, Z-end, frequency, ID number, OCH trail name, and administrative/operational states.

C.  

A list of boards that this cross-connection passes through on the local node, along with administrative/operational states, expected power levels, and measured power levels.

D.  

A list of all boards on all nodes that this cross-connection passes through, along with expected power levels, measured power levels, and allowed power deviations.

Discussion 0
Questions 3

Which of the following is NOT a characteristic of an Optical Supervisory Channel Loss of Signal (OSC LOS) issue, in case that no "LD Input LOS" alarms are raised against the involved amplifiers?

Options:

A.  

An "Incoming SUPVY LOS" alarm is raised on the local node.

B.  

A "Data Link Down" alarm is raised on the adjacent node.

C.  

A "Power Adjustment Required" alarm is eventually raised on the local node.

D.  

Traffic does not pass between the local and adjacent nodes.

Discussion 0
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Questions 4

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?

Questions 4

Options:

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 = 2

(ii) number of service affecting alarms = 2

(Hi) number of conditions = 18

D.  

(i) total number of alarms = 4

(ii) number of service affecting alarms = 14

(iii) number of conditions = 2

Discussion 0
Questions 5

Suppose a "Channel Absent" alarm is reported on an 1830 PSS node. What is the recommended order for the following troubleshooting steps?

Options:

A.  

1. Go to the suspected troubled node / card / port and look at Wave Keys (in / out).

2. Retrieve the cross-connection (XC) details and see what Wave Keys should be present.

3. Check observed Wave Keys against expected Wave Keys.

4. Retrieve the channel power trace.

B.  

1. Retrieve the channel power trace.

2. Retrieve the cross-connection (XC) details and see what Wave Keys should be present.

3. Go to the suspected troubled node / card / port and look at Wave Keys (in / out).

4. Check observed Wave Keys against expected Wave Keys.

C.  

1. Retrieve the cross-connection (XC) details and see what virave Keys should be present.

2. Go to the suspected troubled node / card / port and look at Wave Keys (in / out).

3. Retrieve the channel power trace.

4. Check observed Wave Keys against expected Wave Keys.

D.  

1. Check observed Wave Keys against expected Wave Keys.

2. Go to the suspected troubled node / card / port and look at Wave Keys (in / out).

3. Retrieve the channel power trace.

4. Retrieve the cross-connection (XC) details and see what Wave Keys should be present.

Discussion 0

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