Prepare with Huawei H31-311_V2.5 exam practice material, pass for sure

Updated: Aug 09, 2026

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Huawei H31-311_V2.5 Exam Overview:

Certification Vendor:Huawei
Exam Name:Huawei Certified ICT Associate – Transmission V2.5
Exam Number:H31-311_V2.5
Passing Score:600/1000
Real Exam Qty:60
Related Certifications:HCIP-Transmission
HCIE-Transmission
Exam Format:Single-choice questions, Multiple-choice questions, True/False questions
Exam Duration:90 minutes
Available Languages:English, Simplified Chinese
Certificate Validity Period:3 years
Recommended Training:HCIA-Transmission Training Courses
Huawei Talent Online Learning
Exam Registration:Pearson VUE Huawei Exams
Huawei Certification Official Portal
Sample Questions:Huawei H31-311_V2.5 Sample Questions
Exam Way:Online proctored exam or authorized test center (Huawei certification platform / Pearson VUE depending on region)
Pre Condition:No strict prerequisite, but basic ICT knowledge is recommended
Official Syllabus URL:https://e.huawei.com/en/talent/certification

Huawei H31-311_V2.5 Exam Syllabus Topics:

SectionObjectives
Transmission Fundamentals- Basic ICT and transmission network principles
  • 1. Network topology basics
    • 2. Overview of transmission technologies
      Optical Fiber Communication- Optical fiber structure and characteristics
      • 1. Optical transmission principles
        • 2. Fiber types and parameters
          SDH Technology- Synchronous Digital Hierarchy (SDH)
          • 1. SDH network elements and functions
            • 2. Frame structure and multiplexing
              WDM and OTN Technologies- Optical Transport Network (OTN)
              • 1. OTN frame structure
                • 2. OTN protection and switching
                  - Wavelength Division Multiplexing (WDM)
                  • 1. Optical channel management
                    • 2. DWDM/ CWDM principles
                      Transmission Network Operation & Maintenance- Network deployment and maintenance
                      • 1. Fault diagnosis and troubleshooting
                        • 2. Equipment configuration basics

                          Huawei HCIA-Transmission V2.5 Sample Questions:

                          1. The difference between ASON network and ordinary network is that it introduces the concept of signaling.

                          A) False
                          B) True


                          2. OTUk_LOF is an OTUk layer alarm, indicating OTUk frame loss. The FAS frame alignment overhead is detected. If the frame is out of sync for 5 ms, this alarm is reported. The alarm ends after the frame synchronization is restored for 5ms.

                          A) False
                          B) True


                          3. Which of the following options are included in the advantages of TDM equipment? (Multiple choice)

                          A) Flexible networking
                          B) Ultra-long distance
                          C) Large capacity
                          D) Save optical fiber resources


                          4. Which of the following options does WDM have for light source requirements? (Multiple choice)

                          A) Larger dispersion tolerance
                          B) Larger output power
                          C) Output stable wavelength
                          D) Output standard wavelength


                          5. Which of the following alarms or events are conditions for SNCP switching? (Multiple choice)

                          A) H_UNEQ
                          B) AU_LOP
                          C) Remove the circuit board
                          D) TU_AIS


                          Solutions:

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

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