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H31-311_V2.5 Exam Dumps : HCIA-Transmission V2.5

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HCIA-Transmission V2.5 Questions and Answers

Question 1

Optical monitoring channel is used for monitoring of WDM optical transmission systems. In the UU-T recommendation, it is preferable to use a 1510 nm wavelength of the a ") rate.

Options:

A.

64 kbit/s

B.

192 kbit/st

C.

2 Mbit/s

D.

5676 kbit/s

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Question 2

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 3

Which of the following statements regarding multiplexing partial remote False indication (MS-REI) is correct?

(1) B2 bytes indicate the transmission channel.

(2) The M1 byte represents the transmission channel

(3) THE MS-REl is sent from the receiver to the source.

(4) MS-REI is transmitted from the source to the receiver.

(5) Indicates the number of bit Falses detected by the receiver after receiving the MS signal.

Options:

A.

①④⑤

B.

②④⑤

C.

①③⑤

D.

(2) (3) (5)