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DOWNLOAD DEMO

Huawei HCIA-Transmission V2.5 Sample Questions:

1. Erbium-doped fiber amplifier (EDFA) is a key component of the new generation of optical communication systems. Which of the following is the function of EDFA? (Multiple choice)

A) High output power
B) Low noise index
C) Amplification of any wavelength
D) High gain

2. The essence of OPSK modulation is to select four possible values on the phase of the optical field so as to reduce the baud rate of the optical signal by half without reducing the line rate. This multiplexing method can reduce the spectral bandwidth of the optical signal by half, making multi-wavelength ULH transmission with 50GH interval and 40G line rate possible.

A) True
B) False

3. In terms of protection capability, which of the following topologies has the strongest protection capability?

A) Mesh topology
B) Ring topology
C) Tree topology
D) Star topology
E) Linear topology

4. SXCL board only supports SDH service cross-connection.

A) True
B) False

5. The pointer is used for alignment, indicating the starting position of the VC in the corresponding AU or TU. In this way, the corresponding VC can be correctly removed from the STMN, and then the VC and C package are separated into separate low-rate signals, such as PDH. That is, the low-rate tributary signal can be directly discarded from the STMN signal.

A) True
B) False

Solutions: