Free Access Huawei.H31-341_V2.5.v2025-04-15.q376 Practice Test (Page 17)

Question 76

Which of the following descriptions about the DWSS20 board is correct? (Multiple choice)

A.DWSS20 only supports single-wavelength optical power commissioning for the upwave, but not for the downwave

B.The downwave part implements the signal of the main optical channel received from the IN port, and outputs it through the DM1~DM20 port in any wavelength combination, realizing the scheduling of any wavelength to any port

C.DWSS20 supports optical layer level signal service scheduling with up to 20 dimensional wavelengths

D.The wave adding part realizes that any combination of wavelengths scheduled in any direction is added through any port of AM1~AM20, and output from the OUT port

Question 77

OTUk LOF is an alarm at the OTUk layer, indicating that the OTUK frame is lost and the FAS frame alignment overhead is detected. If the frame is out of sync state for 5ms continuously, this alarm will be reported. The alarm will end after the frame synchronization state is restored for 5ms.

A.True

B.False

Question 78

The loss of optical fiber mainly includes which of the following options? (Multiple choice)

A.Absorption loss

B.Refractive loss

C.Bending loss

D.Scattering loss

Question 79

MPLS adopts a double-plane structure, which is divided into () and ()

Question 80

Which of the following descriptions about 64K SNCP protection is correct? (Multiple choice)

A.Support dual-ended switching

B.Switching time <50ms

C.Dual-engine selective reception

D.Recovery mode supports recovery and non-recovery

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Question 76

Question 77

Question 78

Question 79

Question 80

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