Exam Name: HCIA-Transmission V2.5
Certification Provider: Huawei
Corresponding Certification: Huawei Transmission
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Huawei H31-311_V2.5 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| SDH/SONET Technology | 20% | - SDH Protection Mechanisms - SDH Frame Structure - SDH Equipment and Interfaces - SDH Multiplexing Principles |
| Packet Transport Network (PTN) | 15% | - MPLS-TP Principles - PTN Protection Mechanisms - QoS Mechanisms |
| Optical Communication Basics | 10% | - Optical Fiber Types and Characteristics - DWDM Fundamentals - Optical Communication Principles |
| OTN Technology | 25% | - ROADM Technology - OTN Architecture and Structure - WDM Principles - ODU and OTU Mapping - OTN Protection |
| Huawei Transmission Products Overview | 15% | - OSN 1800 Series - Product Portfolio and Positioning - OSN 3800/5800/6800/8800 Series |
| Transmission Network Maintenance | 15% | - Performance Monitoring - Typical Troubleshooting - Common Alarm Analysis - Network Commissioning |
Huawei HCIA-Transmission V2.5 Sample Questions:
The clock unit can only access the external clock source as the timing signal source of the system through the external clock interface. In addition, it can also output the processed clock and provide the clock source for other devices that need timing.
- A. False
- B. True
Correct Answer: A 🗳️
There are two types of optical fiber dispersion, one is (), the other is ()
Reveal Solution Discussion 0Correct Answer:
Chromatic dispersion | Polarization mode dispersion
Which of the following are the benefits of polarization multiplexing technology? (Multiple choice)
- A. The reduction of optical signal spectrum width will reduce the OSNR requirements of the optical transmission system, improve its dispersion tolerance and PMD tolerance performance, and enhance the ability to resist the nonlinear effects of optical fiber.
- B. PDM-QPSK modulation code can reduce the line transmission baud rate, greatly reducing the bandwidth requirements for (optical) electronic devices.
- C. PDM-QPSK technology reduces the optical harmonic width of the optical signal, making 50GHz interval WDM transmission possible and increasing the optical utilization efficiency to 2bps/Hz
Correct Answer: A,B,C 🗳️
The nominal rate of the OTU4 signal is 111809973.568 kbits, and we can generally consider the line rate to be about 112G.
- A. False
- B. True
Correct Answer: B 🗳️
When transmitting Ethernet services, which of the following encapsulation protocols is used for mixed docking of devices from different manufacturers?
- A. LAPS
- B. PPP
- C. GFP
- D. HDLC
Correct Answer: C 🗳️
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