최신 Nokia Optical Network Services Expert 4A0-265 무료샘플문제:
1. A "Power Adjustment Required" alarm was raised on the ingress amplifier in slot 1/10. Which of the following commands should be entered to manually adjust the related amplifier optical power levels?
A) config powermgmt ingress 1/10 power adjustment
B) config powermgmt ingress 1/10
C) config powermgmt ingress 1/10 adjust
D) config powermgmt ingress 1/10 scot
2. What is the default severity level for a Threshold Crossing Alert (TCA) alarm?
A) Critical
B) Minor
C) Major
D) Warning
3. 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) Traffic will pass between the local and adjacent node.
C) A "Data Link Down" alarm will raise on the adjacent node.
D) A Power adjustments action will fail on the local node.
4. Which of the following statements best describes the Forward Error Correction (FEC) technique?
A) FEC enables errors to be detected and data to be retransmitted. This technique is effective only below a specified OSNR threshold.
B) FEC enables errors to be detected and corrected without retransmission. This technique is effective only above a specified OSNR threshold.
C) FEC enables errors to be detected and data to be retransmitted. This technique is effective only above a specified OSNR threshold.
D) FEC enables errors to be detected and corrected without retransmission. This technique is effective only below a specified OSNR threshold.
질문과 대답:
질문 # 1 정답: C | 질문 # 2 정답: D | 질문 # 3 정답: A | 질문 # 4 정답: B |