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Huawei H31-311_V2.5 Exam Syllabus Topics:

Huawei HCIA-Transmission V2.5 Sample Questions:

1. Which of the following is the multiplexing method of SDH?

A) Flexible mapping
B) Flexible mapping and synchronous multiplexing
C) Asynchronous multiplexing
D) Flexible mapping and asynchronous multiplexing

2. In a plane perpendicular to the transmission direction, the optical signal field can have two mutually orthogonal and independent vibration directions, generally named X polarization and Y polarization.
Polarization multiplexing utilizes this property of optical signals and modulates service signals in two orthogonal polarization directions of light.

A) False
B) True

3. What is the main reason why the OSC monitoring signal does not pass through the EDFA amplification along with the business signal?

A) The rate of OSC is too low. If it is scaled up, the energy efficiency will be too low.
B) Prevent monitoring signals from interfering with business signals.
C) Even if OA fails, the OSC monitoring channel is still valid
D) The power of the OSC is too low, below the amplification sensitivity of the OA.

4. The information payload area stores only the information payload.

A) False
B) True

5. The interval between two adjacent pointer alignment events is at least () frames.

A) 4
B) 5
C) 2
D) 3

Solutions: