- Exam Code: H31-311-ENU
- Exam Name: HCIA-Transmission(Huawei Certified ICT Associate-Transmission)
- Updated: Sep 18, 2026
- Q & A: 190 Questions and Answers
Huawei HCIA-Transmission(Huawei Certified ICT Associate-Transmission) : H31-311-ENU exam
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Huawei H31-311-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| WDM and OTN Networks and Signal Flow | 5% | - WDM networking modes - OTN cross-connect and signal flow |
| Routine Maintenance | 10% | - Common fault handling - Daily maintenance procedures |
| Hardware Installation Basics | 10% | - Cabling and power supply - Installation environment and safety requirements |
| Overview of Optical Transmission Networks | 5% | - Development and classification of transmission networks - Network architecture and application scenarios |
| Basics of Optical Fiber Communication | 10% | - Optical fiber characteristics and types - Optical transmission principles - Optical passive components |
| Network Management System | 5% | - NCE-T/iManager U2000 overview - Basic management functions |
| Optical Transmission Technologies | 25% | - Ethernet services over transmission networks - WDM principles and system composition - SDH principles and frame structure - OTN protocol and frame structure |
| Commissioning and Configuration Basics | 20% | - Performance monitoring and alarm processing - Service configuration and protection - Initial configuration process |
| Optical Transmission Network Products | 10% | - OptiXtrans SDH/WDM product series - Hardware composition and functions |
Huawei HCIA-Transmission(Huawei Certified ICT Associate-Transmission) Sample Questions:
Question #1
Which of the following is the function of TCM overheads in ODUk signals?
- A. Channel supervisory overhead
- B. General communication channel overhead
- C. Path trace identifier overhead
- D. Tandem connection monitoring overhead
Correct Answer: D 🗳️
Question #2
By default, the B2-EXC alarm is reported when the number of B2 bit errors exceeds the () threshold.
- A. 0.01
- B. 0.001
- C. 0.00001
- D. 0.000000001
Correct Answer: B 🗳️
Question #3
Which of the following are the electrical-layer overheads of OTN? (Multiple Choice)
- A. ODUk
- B. OCh
- C. OPUk
- D. OTUk
Correct Answer: A,C,D 🗳️
Question #4
Which of the following bridges is used to forward data based on the MAC address and VLAN ID carried in data?
- A. 802.11ab
- B. 802.1d
- C. 802.1q
- D. 802.1a
Correct Answer: C 🗳️
Question #5
Both PDH and SDH have globally unified standards.
- A. TRUE
- B. FALSE
Correct Answer: B 🗳️
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