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| Section | Weight | Objectives |
|---|---|---|
| OTN Technology | 25% | - OTN Protection - ROADM Technology - OTN Architecture and Structure - ODU and OTU Mapping - WDM Principles |
| SDH/SONET Technology | 20% | - SDH Protection Mechanisms - SDH Frame Structure - SDH Equipment and Interfaces - SDH Multiplexing Principles |
| Optical Communication Basics | 10% | - DWDM Fundamentals - Optical Communication Principles - Optical Fiber Types and Characteristics |
| Packet Transport Network (PTN) | 15% | - PTN Protection Mechanisms - MPLS-TP Principles - QoS Mechanisms |
| Transmission Network Maintenance | 15% | - Common Alarm Analysis - Performance Monitoring - Typical Troubleshooting - Network Commissioning |
| Huawei Transmission Products Overview | 15% | - OSN 3800/5800/6800/8800 Series - OSN 1800 Series - Product Portfolio and Positioning |
1. From the formula: OTUk rate = 255/(39-k) × STM-N rate, we can get OTU4 rate = 255/235 × STM-N rate.
A) False
B) True
2. A one-way loop means that the routes of service sending and receiving are inconsistent under normal network conditions. We call the service with separated routes a one-way service ()
A) False
B) True
3. SDH network is composed of multiple network nodes (network elements) interconnected by optical fibers; network topology generally refers to the shape of the network, that is, the geometric arrangement of network nodes and transmission lines, which reflects the logical connection of the network.
A) False
B) True
4. It is not recommended to configure EPLAN services as a ring. If EPLAN services are configured as a ring network, the STP protocol must be enabled on the network to prevent broadcast storms.
A) False
B) True
5. Which of the following is the function of TCM overhead in ODUk signal?
A) Channel supervision fees
B) Path Trace Identifier Overhead
C) General communication channel overhead
D) Tandem connection monitoring overhead
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: B | Question # 5 Answer: D |
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