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Huawei H31-311_V2.5 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: SDH/SONET Technology20%- SDH Frame Structure
- SDH Equipment and Interfaces
- SDH Protection Mechanisms
- SDH Multiplexing Principles
Topic 2: Packet Transport Network (PTN)15%- QoS Mechanisms
- PTN Protection Mechanisms
- MPLS-TP Principles
Topic 3: OTN Technology25%- OTN Protection
- WDM Principles
- ODU and OTU Mapping
- OTN Architecture and Structure
- ROADM Technology
Topic 4: Huawei Transmission Products Overview15%- Product Portfolio and Positioning
- OSN 1800 Series
- OSN 3800/5800/6800/8800 Series
Topic 5: Transmission Network Maintenance15%- Typical Troubleshooting
- Network Commissioning
- Performance Monitoring
- Common Alarm Analysis
Topic 6: Optical Communication Basics10%- Optical Fiber Types and Characteristics
- DWDM Fundamentals
- Optical Communication Principles

Huawei HCIA-Transmission V2.5 Sample Questions:

1. On the two-fiber bidirectional multiplex section protection ring, the first half of the VC-4 of each STM-N line is the working channel, and the second half of the VC-4 is the protection channel.

A) True
B) False


2. If the overhead bytes pass through the backplane bus between two slots, the two slots are called paired slots. Paired slots enable automatic transparent transmission of overhead bytes, such as () and ().
Even if the SCC board on the local element is offline, it can improve the MSP switching performance and protect the DCC communication with other network elements. (Multiple choice)

A) K bytes
B) E1 byte
C) D bytes
D) B1 byte


3. TPS protection belongs to single-board level protection, and its switching process does not require the participation of the cross-board.

A) True
B) False


4. Among the following modulation technologies, which one performs best in terms of wavelength stability?

A) Direct modulation
B) MZ modulation
C) EA modulation
D) Indirect modulation


5. Which of the following are types of service boards for MSTP equipment? (Multiple choice)

A) Service Processing Board
B) Interface board
C) Service processing board with interface
D) Auxiliary board


Solutions:

Question # 1
Answer: A
Question # 2
Answer: A,B,C
Question # 3
Answer: A
Question # 4
Answer: B
Question # 5
Answer: A,B,C

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