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Which of the following descriptions about the FIU board is correct?
Which of the following descriptions about the FIU board is correct?A . The FIU board processes monitoring information.B . FIU can complete the access and extraction of OSC channels.C . In the OptiX OSN8800 equipment, when there is no signal input, the FIU board will report an alarm.D . Whether...
FAS is the frame alignment overhead, with a length of 6 bytes, located in the 1st row and the 1st to 6th columns. The 1st to 3rd bytes are 3 OA1 bytes, each OA1 is always "1111 0110", which is F6 in hexadecimal. The 4th to 6th bytes are 3 OA2 bytes, each OA2 is always "0010 1000", which is 28 in hexadecimal.
FAS is the frame alignment overhead, with a length of 6 bytes, located in the 1st row and the 1st to 6th columns. The 1st to 3rd bytes are 3 OA1 bytes, each OA1 is always "1111 0110", which is F6 in hexadecimal. The 4th to 6th bytes are 3...
In which of the following optical fibers will the four-wave mixing phenomenon be most serious when the optical signal propagates, and will also cause the greatest transmission damage?
In which of the following optical fibers will the four-wave mixing phenomenon be most serious when the optical signal propagates, and will also cause the greatest transmission damage?A . G.652B . G.655C . G.653D . G.654View AnswerAnswer: C
When configuring LMSP, there are two switching modes: single-ended switching and dual-ended switching. Single-ended switching does not require the protection protocol to be enabled.
When configuring LMSP, there are two switching modes: single-ended switching and dual-ended switching. Single-ended switching does not require the protection protocol to be enabled.A . TrueB . FalseView AnswerAnswer: A
The multi-frame loaded 2M signal is the information of which time period?
The multi-frame loaded 2M signal is the information of which time period?A . 500usB . 125usC . 500msD . 125msView AnswerAnswer: A
When serious bit error seconds occur in the PM segment of ODUk, the network management will report the ODUk_PM_ES alarm.
When serious bit error seconds occur in the PM segment of ODUk, the network management will report the ODUk_PM_ES alarm.A . TrueB . FalseView AnswerAnswer: B
A. The value range of U-PTR is 0~782. When the receiving end receives invalid pointer values for 8 consecutive frames, which of the following alarms will the device generate?
A. The value range of U-PTR is 0~782. When the receiving end receives invalid pointer values for 8 consecutive frames, which of the following alarms will the device generate? A. AU-AIS B. AU-LOP C. MS-AIS D. MS-RDIView AnswerAnswer: B
RAMAN amplifier utilizes which of the nonlinear effects?
RAMAN amplifier utilizes which of the nonlinear effects?A . Self-Phase ModulationB . DispersionC . Raman scatteringD . Four-wave mixingView AnswerAnswer: C
Which of the following statements is wrong?
Which of the following statements is wrong?A . In the MPLS VPNE connection model, the network consists of the operator's backbone network and the user's various sites. The so-called VPN is the division of a set of sites. One VPN corresponds to a set of several sites.B . The network...
The levels of forced switching, fiber break switching, manual switching, and practice switching are arranged from high to low.
The levels of forced switching, fiber break switching, manual switching, and practice switching are arranged from high to low.A . TrueB . FalseView AnswerAnswer: A
