Online Access Free 4A0-265 Practice Test

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

• A.* Incoming optical signals pass through the ingress amplifier but are not boosted.
  * Outgoing optical signals are boosted by the ingress amplifier.
• B.* Incoming optical signals are boosted by the ingress amplifier.
  * Outgoing optical signals do not pass through the ingress amplifier.
• C.* Incoming optical signals are boosted by the ingress amplifier.
  * Outgoing optical signals are also boosted by the ingress amplifier.
• D.* Incoming optical signals are boosted by the ingress amplifier.
  * Outgoing optical signals pass through the ingress amplifier but are not boosted.

Consider the exhibit. What do the different colored green columns indicate?

• A.Optical power levels measured for multiple wavelengths against a specific interface.
• B.Optical power levels measured at different interfaces throughout the optical path of a single wavelength.
• C.Optical power levels measured multiple times against a specific interface, at 24-hour intervals for the same wavelength.
• D.The average optical power levels measured for multiple wavelengths throughout their shared optical path.

Which of the following CLI commands displays a list of the expected and measured output power for the channels whose admin state is up?

• A.show wavekey wtsource power
• B.config wavekey summary
• C.show wavekey wtsource
• D.config wavekey power detail

Suppose a node is experiencing a little unexpected attenuation over the Optical Supervisory Channel (OSC) transmit direction. Which of the following statements is FALSE?

• A.No OSC-related alarms will raise on the local node.
• B.A Power adjustments action will fail on the local node.
• C.A "Data Link Down" alarm will raise on the adjacent node.
• D.Traffic will pass between the local and adjacent node.

Which of the following commands is used to retrieve the total output power level?

• A.show interface am2125a 1/6/lineout detail
• B.show interface am2125a 1/6/lineout
• C.show interface am212 5a 1/6/lineout pm
• D.show interface am2125a 1/6/lineout wavekey