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Huawei Certified Network Professional-Building Carrier OTN Transmission Network Sample Questions:

1. Which of the following measures does not effectively improve the signal-to-noise ratio of the system?

A) Power amplifier with high saturation output
B) Use better quality fiber optic cable
C) Using optical-electric-optical relay boards
D) Turn off the FEC error correction function of the service board.

2. Which of the following boards does not have a WSS module?

A) WSMD9
B) RDU9
C) WSM9
D) WSMD4

3. Which of the following statements about the safe use of fiber is correct? (multiple choice)

A) The recommended dust cap is made of soft rubber material. It is not easy to absorb dust and debris, easy to clean, and has good dustproof effect.
B) When loopback testing the optical port with pigtails, in order to prevent the laser beam from being too powerful to damage the device, it is necessary to add a fixed optical attenuator.
C) When installing and maintaining the optical interface board and optical fiber, do not look into the optical interface or fiber connector.
D) Before using the optical adapter dedicated magnifier, the optical fiber should be inspected with an optical power meter to ensure that there is no laser beam in the fiber.
E) For a board that can be equipped with an optical attenuator, it is recommended to add an optical attenuator to the receiving optical port.

4. Which of the following situations do I need to use OSC in a wavelength division system? (multiple choice)

A) Single span loss exceeds 52dB
B) Need to configure business phone
C) Requires OTN optical layer overhead
D) Using OLA sites

5. Which of the following are the default "fixed boundary ports" for the system? (multiple choice)

A) FIU board IN / OUT port
B) OAU1 board OUT port
C) M40V board OUT port
D) OTU unit line side port

Solutions: