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Huawei HCIA-Transmission V2.5 Sample Questions:

1. PDH is a quasi-synchronous digital system, which also belongs to the synchronous digital transmission system.

A) False
B) True

2. Are the following statements about the definition of SDH correct?

A) Hierarchical structures available for asynchronous digital transmission
B) Complete standard digital signal hierarchy, providing synchronous digital transmission, multiplexing and cross-connection
C) A hierarchy of standardized digital signals that can be cross-connected asynchronously
D) A hierarchical structure of standardized digital signals that can be multiplexed asynchronously

3. The frame period of OTN signal is fixed and the same as the frame period of SDH signal.

A) False
B) True

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

A) Failed members are protected and restored
B) Bandwidth is dynamically increased or decreased.
C) Automatic discovery of new network elements and links
D) Provide fault tolerance mechanism to enhance the robustness of virtual concatenation function

5. DWDM technology utilizes the large bandwidth and low loss characteristics of single-mode optical fiber, uses multiple wavelengths as carriers, and allows each carrier channel to be transmitted simultaneously in the optical fiber.

A) False
B) True

Solutions: