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Nokia Optical Diagnostics and Troubleshooting Sample Questions:

1. When troubleshooting possible generic fiber cuts, the recommended first step is to: 1. Review alarms at nodes where power loss occurs.
What is the next recommended step?

A) Monitor amplifier total power in/out to isolate the direction of a possible cut.
B) Review PM data to determine if the problem is intermittent.
C) Perform network power traces to attempt to determine the point of power loss.
D) Review EPT design for calculated span loss.

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

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 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.
C) 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.
D) 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.

3. Which of the following statements about 1-Day PMs is TRUE?

A) 1-Day PMs show measurements collected since the beginning of the current day. Up to 33 bins are available for data storing.
B) 1-Day PMs show measurements collected since the beginning of the current day. Up to 8 bins are available for data storing.
C) 1-Day PMs show measurements collected over the preceding 24 hours. Up to 8 bins are available for data storing.
D) 1-Day PMs show measurements collected over the preceding 24 hours. Up to 33 bins are available for data storing.

4. Suppose a network operator needs to configure the 10GbE client interface 1/7/C1 with a GFP-F encapsulation mode. Which command should be used?

A) config encmode interface 1/7/C1 10client gfp-f
B) config interface 1/7/C1 encmode 10client gfp-f
C) config interface 1/7/C1 tenGige encmode gfp-f
D) config encmode interface 1/7/C1 tenGige gfp-f

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