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Nokia Optical Diagnostics and Troubleshooting Question and Answers

Nokia Optical Diagnostics and Troubleshooting

Last Update May 2, 2024
Total Questions : 40

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Questions 1

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

Options:

A.  

10.0 dB

B.  

8.0 dB

C.  

5.0 dB

D.  

2.0 dB

Discussion 0
Questions 2

What is the default severity level for a Threshold Crossing Alert (TCA) alarm?

Options:

A.  

Critical

B.  

Major

C.  

Minor

D.  

Warning

Discussion 0
Questions 3

Which of the following statements about the "config powermgmt egress 1/2 adjust status command" is TRUE?

Options:

A.  

The command displays the status of power adjustment on the specified egress amplifier.

B.  

The command enables power adjustment feature on the specified egress amplifier, as this feature Is always and only available at the egress amplification stage.

C.  

The command enables power adjustment feature on the specified egress amplifier.

D.  

The command displays commissioning status and WT decoder usage for the specified egress amplifiers only, as this feature is always and only done in the egress direction.

Discussion 0
Questions 4

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 5

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

Options:

A.  

11.5

B.  

8.0

C.  

2.5

D.  

1.5

Discussion 0
Questions 6

Which of the following statements best describes the output of the CLI command: show wavekey wtmonitor 1/6/LINE summary?

Options:

A.  

A list of all channels detected against the selected interface (in and out); it shows if a Wave Keys pair is expected, if a Wave Keys pair is received, and if the received Wave Keys pair is unexpected.

B.  

A list of all channels on this interface for which any Wave Keys pair is being received.

C.  

A list of all channels detected against the selected interface, including Wave Keys pair, channel status, expected and measured power, allowed deviation, and tolerance.

D.  

A list of the unexpected channels detected against the selected interface.

Discussion 0
Questions 7

Which of the following statements about the alarm masking mechanism is TRUE?

Options:

A.  

The alarm masking mechanism makes sure that alarms are always present on the downstream interfaces to facilitate the troubleshooting process.

B.  

The alarm masking mechanism updates the events' original time stamps when it masks/shows alarms, so that when an alarm is not masked anymore, the user can see the updated date and time associated with the original issue.

C.  

The alarm masking mechanism always forwards masked alarms to an external Network Management System (NMS) for alarm correlation.

D.  

The alarm masking mechanism preserves the events' original time stamps, when related alarms gets hidden and then eventually displayed because of the mechanism itself, so that the user can still know the date and time of the original issue.

Discussion 0
Questions 8

Which of the following correctly describes how a unidirectional amplification stage works?

Options:

A.  

• Incoming optical signals are boosted by the ingress amplifier.

• Outgoing optical signals do not pass through the ingress amplifier.

B.  

• Incoming optical signals are boosted by the ingress amplifier.

• Outgoing optical signals pass through the ingress amplifier but are not boosted.

C.  

• Incoming optical signals pass through the ingress amplifier but are not boosted.

• Outgoing optical signals are boosted by the ingress amplifier.

D.  

• Incoming optical signals are boosted by the ingress amplifier.

• Outgoing optical signals are also boosted by the ingress amplifier.

Discussion 0
Questions 9

A power adjustment has succeeded conditionally because of gain settings set to higher levels than expected by design. Which of the following alarms will raise?

Options:

A.  

Invalid topology (PRCDRERR-TOPO)

B.  

Amplifier Gain Tilt Adjustments Suspended (PWRTILTSUSP)

C.  

Power Adjustment Failure (PWRADJFAIL)

D.  

Gain Adjustment Exceeded Max Value (PWRMAXGAIN)

Discussion 0
Questions 10

What is the typical severity level of a "Loss of Signal" (LOS) alarm?

Options:

A.  

Critical

B.  

Major

C.  

Minor

D.  

Warning

Discussion 0
Questions 11

Consider the exhibit which shows an EPT Power ManagementReport for an ingress amplifier.

What is the available output optical power range?

Options:

A.  

-0.6 to 1.72 dB

B.  

-0.02 to 1.14 dB

C.  

0.56 to 1.14 dB

D.  

0.56 to 1.72 dB

Discussion 0
Questions 12

On a bidirectional optical amplifier configuration, which of the following are Wavelength Tracker detection points?

Options:

A.  

LINEOUT and SIGOUT interfaces.

B.  

SIG interface only.

C.  

LINE and SIG interfaces.

D.  

An optical amplifier has no Wavelength Tracker detection points.

Discussion 0