Free Access Huawei.H31-341_V2.5-ENU.v2025-07-07.q217 Practice Test (Page 7)

Question 26

Which of the following descriptions about OL, OLA and OPC boards is wrong?

A.The OL single board is used for the sending end and the receiving end

B.The OPC board has different functions depending on the inserted modules

C.The OLA board is used in the relay site

D.All three boards can realize the function of optical signal amplification

Question 27

The rate of STM-1 is () bit/s.

A.9*2708000

B.9*270*1*8000

C.9*270*1*8000*8

D.9*270*1*8000*16

Question 28

The alarm detection of the optical layer overhead is realized through the optical layer overhead OOS. Which of the following descriptions about the optical layer overhead alarm is correct?

A.The WDM system does not enable the optical monitoring channel, and the optical layer overhead alarm cannot be reported

B.As long as the optical monitoring channel is enabled, the optical layer overhead alarm can be reported

C.Whether the optical layer overhead alarm can be accurately reported has nothing to do with the logical fiber connection configuration of the system

D.Optical layer overhead alarms are automatically reported by default

Question 29

The unit of insertion loss is dBm.

A.True

B.False

Question 30

The OLT mainly plays the role of () in the combined networking mode of OLT+ONU, so the OLT equipment is required to have better performance and be able to provide sufficient bus bandwidth

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Question 26

Question 27

Question 28

Question 29

Question 30

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