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Huawei HCIA-Transmission V2.5 Sample Questions:
1. In the electric power dispatching system, dispatching data is transmitted in the transmission network and data network in the form of Ethernet services.
A) True
B) False
2. Which of the following is protected by the channel protection ring?
A) Business
B) Monitoring Channel
C) Fiber Optic
D) Equipment
3. Which of the following communication protocols does Huawei equipment not support for DCN networking?
A) OSI protocol
B) BGP protocol
C) TCP/IP protocol
D) HWECC Protocol
4. Which of the following is the reason why the pump light output power of the RAMAN amplifier is very high?
A) Raman amplification is performed in the transmission fiber, and the pump light needs to be transmitted over a long distance, so the output power needs to be increased.
B) Raman amplifiers increase pump output power to obtain better noise characteristics
C) Raman needs to obtain much greater gain than EDFA, so the pump output power is increased
D) The threshold power for the stimulated Raman scattering effect is high, so Raman requires a high- power output of the pump light
5. Which of the following descriptions about solving the system OSNR limitation problem are correct?
(Multiple choice)
A) Use the local oscillator laser of the same frequency to interfere with the received optical signal to improve the OSNR tolerance
B) Enhanced HFEC error correction coding is used to improve OSNR by nearly 1 dB compared to AFEC.
C) Use low noise figure NF, high performance EDFA and Ramani amplifier board, such as N13OAU1O6 or TN11RAU106, to improve the receiving OSNR of the system.
D) Use advanced modulation and coding technology to reduce the baud rate and improve OSNR tolerance.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: D | Question # 5 Answer: A,C,D |






