Exam Name: HCIA-Transmission V2.5
Certification Provider: Huawei
Corresponding Certification: Huawei Transmission
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Instant Download Huawei : H31-311_V2.5 Questions & Answers
Check Updated on: Oct 06, 2026
No. of Questions: 750 Questions & Answers with Exam Engine
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Behind the 750 practice questions for the H31-311_V2.5 exam stands a daily routine at ExamPrepAway: specialists review vendor announcements, refresh the Huawei HCIA-Transmission V2.5 bank when the blueprint shifts, and keep every answer verified before it reaches your screen.
Huawei H31-311_V2.5 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Optical Communication Basics | 10% | - DWDM Fundamentals - Optical Fiber Types and Characteristics - Optical Communication Principles |
| Topic 2: Huawei Transmission Products Overview | 15% | - OSN 1800 Series - OSN 3800/5800/6800/8800 Series - Product Portfolio and Positioning |
| Topic 3: SDH/SONET Technology | 20% | - SDH Multiplexing Principles - SDH Protection Mechanisms - SDH Frame Structure - SDH Equipment and Interfaces |
| Topic 4: Transmission Network Maintenance | 15% | - Performance Monitoring - Typical Troubleshooting - Common Alarm Analysis - Network Commissioning |
| Topic 5: Packet Transport Network (PTN) | 15% | - QoS Mechanisms - MPLS-TP Principles - PTN Protection Mechanisms |
| Topic 6: OTN Technology | 25% | - WDM Principles - ROADM Technology - ODU and OTU Mapping - OTN Architecture and Structure - OTN Protection |
H31-311_V2.5 Exam Basics, Support Speed and Discount Programs
- OTN Technology (25%)
- Transmission Network Maintenance (15%)
- Optical Communication Basics (10%)
Huawei HCIA-Transmission V2.5 Sample Questions:
Output networks require higher costs than belt networks, but provide more reliable management channels.
- A. True
- B. False
Correct Answer: A 🗳️
For OSN products, changing which of the following parameters will cause the network element to reset?
- A. Network element subnet mask
- B. network element ID
- C. Network element IP
- D. Network element name
Correct Answer: A 🗳️
Which of the following VLAN numbers can be provided by QINQ technology?
- A. 4095*4095
- B. 1024*1024
- C. 4096
- D. 4096*1024
Correct Answer: A 🗳️
Which of the following descriptions about the TNG2M 402D board is wrong?
- A. M402D can realize the wavelength division side optical signal in the extended C band 50GHz interval
96 wavelength range domestically adjustable - B. Support ODUk SNCP protection and client side 1+1 protection
- C. Support ASON function of optical layer
- D. Dual-channel 100 Gbit/s wavelength conversion board
Correct Answer: C 🗳️
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 coding gain of AFEC is greater than the coding gain of FEC
- C. The correction capability of FEC increases with the coding gain.
- D. When BER is constant, the OSNR preserved by correction coding is called coding gain.
Correct Answer: A 🗳️
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