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Transmission H31-311_V2.5 Updated Exam

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Total 198 questions
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HCIA-Transmission V2.5 Questions and Answers

Question 37

Which factors determine the optical signal-to-noise ratio (OSNR) of the receiving end to a certain extent After the signal transmission in the WOM system is transmitted over a certain distance, the "oSNR" of the receiving end of the optical signal-to-noise ratio is reduced to a certain extent. Which of the following is the main cause?

Options:

A.

Use EDFA. ).

B.

Use of multi-density multiplexers and multiplexers.

C.

Do not use new optical fibers.

D.

Optical fiber attenuation is too high.

Question 38

Which of the following maintenance signals is transmitted from the downstream site to the upstream site of the OTN?

Options:

A.

ATS

B.

LCK

C.

IAE

D.

BDI

Question 39

Which of the following statements regarding the protection of the cross-connecting plate 1+1 is correct? (Multiple choice).

Options:

A.

The source business board sends services to the main and standby crossover boards. .

B.

After the service cross-connection is completed, the active and standby cross-board sends the data of the primary cross-board to the receiving service board.

C.

The receiving service board can only receive data from the active cross-link board

D.

The bus of the two cross-connected modules works independently and does not interfere with each other. .

E.

Dual bus system structure indicates that the service board performs dual data transfer to the cross-connection side and selectively receives data on the cross-connection side. .

F.

Both cross-connecting plates have the same configuration. The service board will selectively receive services from one of them based on the quality of service and the status of the cross-connecting board. .

Question 40

QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN ID.

Options:

A.

True

B.

False

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Total 198 questions
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