Free Nokia 4A0-265 Exam Dumps Questions & Answers

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

• A.A list of all channels on this interface for which any Wave Keys pair is being received.
• B.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.
• C.A list of the unexpected channels detected against the selected interface.
• D.A list of all channels detected against the selected interface, including Wave Keys pair, channel status, expected and measured power, allowed deviation, and tolerance.

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?

• A.Traffic does not pass between the local and adjacent nodes.
• B.A "Power Adjustment Required" alarm is eventually raised on the local node.
• C.A "Data Link Down" alarm is raised on the adjacent node.
• D.An "Incoming SUPVY LOS" alarm is raised on the local node.

Which of the following statements about optical power vs amplification stages is TRUE?

• A.The Optical Supervisory Channel (OSC) is amplified when passing through all amplifier types, except for Raman which is not based on EDFA.
• B.Ingress amplifiers are always more powerful [than egress amplifiers, to reduce the impact of non-linear effects.
• C.When multiple channels pass through a shared port (for example, an amplifier line interface), the total aggregated power reflects the number of channels currently present.
• D.When channels pass through amplifiers, all of them always experience a similar amplification.

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

• 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.

Consider the exhibit which shows an EPT Power ManagementReport for an ingress amplifier.
What is the available output optical power range?

• A.-0.6 to 1.72 dB
• B.0.56 to 1.14 dB
• C.-0.02 to 1.14 dB
• D.0.56 to 1.72 dB