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| Section | Weight | Objectives |
|---|---|---|
| Network Management and Operations | 20% | - Network design with 1830 EPT / WaveSuite Planner - NFM-T / WS-NOC management system overview - Performance monitoring, alarms and troubleshooting - Network commissioning and monitoring |
| Network Survivability and Protection | 15% | - Protection and restoration mechanisms - Path and line protection schemes - Availability and survivability concepts |
| Optical Networking Basics | 20% | - Optical components and functions - Optical signal propagation and characteristics - Fiber types, properties and transmission principles |
| Optical Network Architecture and Nodes | 20% | - Network topologies and transport architectures - Switched WDM (SWDM) principles - WDM node types and functionalities |
| WDM Technology and Systems | 25% | - Optical amplifiers and transmission engineering - DWDM system architecture and building blocks - Wavelength Division Multiplexing concepts |
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NEW QUESTION # 44
Which application generates the commissioning file(s)?
Answer: B
Explanation:
The CPB (Commissioning Parameter Builder) application is used to generate the commissioning files for a Nokia 1830 Photonic Service Switch (PSS-1). The CPB application allows the user to create multiple commissioning files [1][2], which can be used to configure a variety of different features on the device. The CPB also allows users to view, edit and modify the commissioning files before they are uploaded to the device. The NSP (Network Service Platform) and EPT (Element Provisioning Tool) are used to manage the devices and network elements within the network, but do not generate commissioning files.
NEW QUESTION # 45
Which of the following sentences about FlexGrid is false?
Answer: C
Explanation:
FlexGrid is a flexible grid technology that allows for variable channel spacing and bandwidth allocation. It uses the same sets of boards as the traditional fixed grid systems and it does not require upgrading the old generation WDM systems.
Reference:
"Flexible Grid Optical Networks: From Concepts to Realizations" by Diomidis S. Michalopoulos and George K. Karagiannidis
"Flexible Grid and Flexible Spectrum Optical Networks" by Diomidis S. Michalopoulos and George K. Karagiannidis
"Flexible Grid Optical Networks" by Diomidis S. Michalopoulos and George K. Karagiannidis
NEW QUESTION # 46
Which of the following are the main reasons for fiber attenuation?
Answer: C
NEW QUESTION # 47
Which of the following is an example of optical protection mechanism?
Answer: D
Explanation:
It can be implemented through the use of a Y-cable or an optical protection switch (OPS) card, which allows for the switching of traffic to a secondary path in the event of a failure on the primary path. This type of protection is commonly used to protect against fiber cuts and other types of physical layer failures in the optical transport network.
NEW QUESTION # 48
Which type of ports are present in the Colorless Wavelength Router (CWR)?
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Nokia Optical Networking Fundamentals:
In the Nokia 1830 PSS (Photonic Service Switch) architecture, the Colorless Wavelength Router (CWR) is a specialized module used within ROADM nodes to enable "colorless" add/drop capabilities. Traditional static multiplexers, like the SFD (Static Filter Device), use fixed-wavelength ports where a specific port is hard-wired to a specific frequency (color). In contrast, a CWR allows any wavelength to be added or dropped from any of its ports.
The ports on a CWR are bi-directional. This means that a single physical port on the CWR card handles both the transmit (Tx) and receive (Rx) paths for a specific wavelength, typically connecting to a transponder's line-side interface. This bi-directional design simplifies fiber management within the shelf and is a key requirement for the "Colorless" attribute of modern flexible grids. By utilizing CWR modules, operators can remotely retune a transponder to a different frequency without needing a technician to physically move fiber patches to a different port on a multiplexer, significantly increasing operational efficiency and reducing human error during service provisioning or restoration.
NEW QUESTION # 49
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