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Huawei H31-311_V2.5 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| SDH Principles | 15% | - Network topology and protection mechanisms - Frame structure and multiplexing - Synchronization and timing |
| NG WDM Networking and Applications | 10% | - Protection and reliability - System features and networking modes - Service access and transmission |
| WDM Principles | 15% | - Signal flow and transmission performance - Basic principles and classification - Optical components and systems |
| Transmission Network Overview | 10% | - Basic concepts and development history - Network architecture and composition - Main technologies and application scenarios |
| Transmission Network Protection | 10% | - SDH/WDM/OTN protection schemes - Protection principles and classification - Protection configuration and application |
| Transmission Product Overview | 10% | - Typical application scenarios - Hardware composition and functions - OptiX series product positioning and features |
| Ethernet Principles and Services | 10% | - Carrier-grade Ethernet technologies - Service bearing and configuration - Basic Ethernet concepts |
| NCE-T System Introduction | 5% | - Basic operation and management - System functions and architecture |
| OTN Principles and Technologies | 10% | - Mapping and adaptation mechanisms - OTN hierarchy and interfaces - Frame structure and multiplexing |
Huawei HCIA-Transmission V2.5 Sample Questions:
1. After mapping and multiplexing, 4 ODU2 signals can be multiplexed into 1 OTU3[V] signal. For ODU2e signals, only 3 signals are needed to be multiplexed into 1 OTU3[V] signal.
A) True
B) False
2. The current sparse wavelength division multiplexing system generally operates in the band from
1271nm to 1611nm. Which of the following is the channel spacing?
A) 18nm
B) 5nm
C) 20nm
D) 10nm
3. Which of the following are the basic functions of U2000? (Multiple choice)
A) Business Management
B) Security Management
C) Topology Management
D) Alarm Management
4. The segment overhead of STM-4 is () bytes/frame.
A) 9*8
B) 9*8*4
C) 9*9*4
D) 9*9*8
5. The error correction capability of FEC is measured by coding gain. Which of the following statements about coding gain is wrong?
A) The coding gain of in-band FEC is greater than the coding gain of out-band FEC
B) The correction capability of FEC increases with the coding gain.
C) When BER is constant, the OSNR preserved by correction coding is called coding gain.
D) The coding gain of AFEC is greater than the coding gain of FEC
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C | Question # 3 Answer: A,B,C,D | Question # 4 Answer: B | Question # 5 Answer: A |
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