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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Management and Operations | 20% | - NFM-T / WS-NOC management system overview - Network design with 1830 EPT / WaveSuite Planner - Network commissioning and monitoring - Performance monitoring, alarms and troubleshooting |
| Topic 2: WDM Technology and Systems | 25% | - DWDM system architecture and building blocks - Optical amplifiers and transmission engineering - Wavelength Division Multiplexing concepts |
| Topic 3: Network Survivability and Protection | 15% | - Availability and survivability concepts - Protection and restoration mechanisms - Path and line protection schemes |
| Topic 4: Optical Networking Basics | 20% | - Optical signal propagation and characteristics - Optical components and functions - Fiber types, properties and transmission principles |
| Topic 5: Optical Network Architecture and Nodes | 20% | - Network topologies and transport architectures - WDM node types and functionalities - Switched WDM (SWDM) principles |
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NEW QUESTION # 33
What is a Shared Risk Group (SRG)?
Answer: D
Explanation:
According to the Nokia Optical Networking documentation, a Shared Risk Group (SRG) is defined as "a set of network resources that share a common failure risk. When a resource in an SRG fails, the other resources in the group are also affected." This can include fibers, boards, nodes, and other network resources. The SRG concept is used in network design and protection mechanisms to ensure survivability and minimal impact on service in case of a failure.
NEW QUESTION # 34
By using the EPT run design command, are the previously designed elements removed?
Answer: C
Explanation:
The EPT run design command can remove previously designed elements, but the user is prompted to choose whether to delete them or leave them intact. This allows the user to progress their design while still keeping the existing elements in place. If the user selects to leave the existing elements, then they will remain in the same slots. If GMPLS nodes are used, the existing slots cannot change as they are controlled by another manager (GMRE).
NEW QUESTION # 35
Where can the user set the long-haul WT decoder parameter, when designing a network with EPT?
Answer: B
Explanation:
The long-haul WT decoder parameter can be set in the NE parameters when designing a network with EPT. This parameter is used to adjust the sensitivity of the decoder and can help to improve the accuracy of the measurements for long-haul WTs.
The Network Element (NE) parameters in EPT (Element Planning Tool) are used to configure various settings and options for the network elements in the network. The long-haul WT decoder parameter is one such setting that can be configured in the NE parameters section. The user can access the NE parameters by navigating to the NE Parameters menu within the EPT interface. The user can then select the appropriate network element and modify the settings as needed. This information can be found in the Nokia guide for EPT.
NEW QUESTION # 36
How many PM bins can be stored, for each data collection point, on PSS systems?
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Nokia Optical Networking Fundamentals:
Performance Monitoring (PM) is critical for maintaining the health of a Nokia 1830 PSS network. The system collects data such as FEC corrected bits, optical power levels, and ODU-layer errors. According to Nokia's standard node management architecture, each data collection point (such as an optical port or an ODU termination point) stores a specific number of historical "bins" locally on the card or the shelf controller.
The standard storage capacity for these PM statistics is 33 x 15-minute bins (covering the last 8 hours and 15 minutes of granular data) and 8 x 1-day bins (covering the last week of daily totals). Additionally, there is 1 raw bin which contains the "current" accumulating data that has not yet been shifted into a completed 15-minute or 24-hour historical bin. This allows network operators using WS-NOC (WaveSuite Network Operations Center) to retrieve recent historical performance data directly from the NE (Network Element) even if the management system was temporarily disconnected. If longer-term history is required, the management system must be configured to poll and archive these bins into its own database before they are overwritten on the hardware.
NEW QUESTION # 37
How does a Raman pump work in the 1830 specific implementation?
Answer: C
Explanation:
In Raman amplification, a pump laser is used to excite the Raman-active molecules in the fiber, which then amplifies the signal light as it travels in the opposite direction. In the 1830 specific implementation, the pump laser is typically a high-power laser that is launched into the fiber in the opposite direction to the signal. The pump light interacts with the Raman-active molecules in the fiber, which then amplifies the signal light as it travels in the opposite direction. This allows the Raman pump to provide a gain that increases with distance, which can be used to compensate for the loss of signal power as it travels through the fiber.
NEW QUESTION # 38
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