Question 1

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.

Answer: A

Question 2

Which of the following statements about basic LCAS functionality are correct? (Multiple choice).

Options :

A : New network elements and links are automatically discovered.

B : Bandwidth dynamically increases or decreases. .

C : Failed members are protected and restored. .

D : Provides a fault-tolerant mechanism to enhance the robustness of the virtual cascading function. .

Answer: B,C,D

Question 3

Which of the following statements about extending the ECC is incorrect?

Options :

A : Extended ECC is divided into Auto Extended ECC and Extended ECC in specified mode.

B : Auto-expanding ECC means an Ethernet port that uses a pass-through cable to connect two network elements

C : Extended ECC in specified mode indicates that a server and client need to be specified.

D : You can enable auto-scaling ECC on up to four network elements. Under the Hand Extension

E : C overlay, each server can link up to three clients.

Answer: D

Question 4

Which of the following is the electrical layer cost of OTN? (Multiple choice).

Options :

A : OPUk

B : ODUk

C : och

D : OTUR

Answer: A,B,D

Question 5

output networks require higher costs than belt networks, but provide a more reliable management channel.

Options :

A : True

B : Error

Answer: A