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| Section | Weight | Objectives |
|---|---|---|
| Optical Networking Basics | 20% | - Fiber types, properties and transmission principles - Optical components and functions - Optical signal propagation and characteristics |
| Optical Network Architecture and Nodes | 20% | - Switched WDM (SWDM) principles - WDM node types and functionalities - Network topologies and transport architectures |
| Network Survivability and Protection | 15% | - Protection and restoration mechanisms - Path and line protection schemes - Availability and survivability concepts |
| Network Management and Operations | 20% | - Performance monitoring, alarms and troubleshooting - Network design with 1830 EPT / WaveSuite Planner - Network commissioning and monitoring - NFM-T / WS-NOC management system overview |
| WDM Technology and Systems | 25% | - Wavelength Division Multiplexing concepts - DWDM system architecture and building blocks - Optical amplifiers and transmission engineering |
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NEW QUESTION # 40
What is the metro area network?
Answer: C
Explanation:
The Metro Area Network (MAN) is a telecommunications network that spans a metropolitan area and connects multiple local area networks (LANs) or business networks together. It typically covers an area that is larger than a LAN but smaller than a wide area network (WAN). The purpose of a MAN is to provide a high-bandwidth, low-latency communication infrastructure for businesses and other organizations in a metropolitan area.
Reference:
Cisco, "Metro Ethernet Services," https://www.cisco.com/c/en/us/solutions/service-provider/metro-ethernet-services/index.html Techopedia, "Metro Area Network (MAN)," https://www.techopedia.com/definition/26896/metro-area-network-man
NEW QUESTION # 41
A user needs to check for interface details against the commands is the correct one?
Answer: B
Explanation:
show interface 11starla 1/17/L1 detail is the correct command to check for interface details. This command will display detailed information about the specified interface, including its status, configuration, and statistics.
NEW QUESTION # 42
How can a mesh network be upgraded so that more services can be transported?
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Nokia Optical Networking Fundamentals:
While technologies like WSS (Wavelength Selective Switches) and coherent transmission (100G/200G/400G+) significantly improve the efficiency and reach of a network, the most direct way to increase the total transportable volume of services in a mesh topology is to upgrade link capacity or install new physical links. In Nokia optical planning, upgrading link capacity typically involves moving from a lower-rate system (like 10G) to a higher-rate system (like 100G or 400G) or increasing the number of available wavelengths by expanding from a 40-channel to an 80-channel or 96-channel C-band system.
Adding new links (new fiber spans) creates more degrees in the mesh, providing more paths for traffic and increasing the overall aggregate bandwidth of the network. Option A refers to flexibility (ROADM functionality) rather than raw capacity. Option B (PRC) relates to survivability and availability, not capacity expansion. While Option C (coherent transmission) is a powerful method for increasing capacity per wavelength, it is not the "only" way, as adding more fiber (spatial multiplexing) or more channels (spectral density) are also primary methods for scaling a mesh network to handle more services.
NEW QUESTION # 43
With reference to the power budget, what is the meaning of receiver dynamic range?
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Nokia Optical Networking Fundamentals:
In the design of a Nokia 1830 PSS optical link, the receiver dynamic range is a critical parameter for ensuring error-free transmission. It defines the "window" of optical power within which a receiver (such as an SFP, XFP, or coherent line port) can accurately interpret the incoming signal. The lower bound of this range is the Sensitivity, which is the minimum optical power required to achieve a specific Bit Error Ratio (BER). If the power drops below this level, the signal is "lost in the noise." The upper bound is the Overload power (or saturation point), which is the maximum power the receiver can handle before the photo-detector becomes saturated, leading to signal distortion and errors. The dynamic range is the mathematical difference between these two points (expressed in dB). For a network to operate reliably, the calculated power at the end of a fiber span must fall comfortably within this dynamic range. If the signal is too weak, an amplifier is needed; if it is too strong (exceeding the overload point), an optical attenuator must be used to bring the power back into the dynamic range.
NEW QUESTION # 44
What is the purpose of the NFM-T deploy menu?
Answer: D
Explanation:
The NFM-T (Network Functions Manager - Transport), now part of the WaveSuite Network Operations Center (WS-NOC), is the centralized management system for Nokia's optical portfolio. The Deploy menu is the primary engine for operationalizing the network. Its fundamental purpose is to create and provision new network instances, which encompasses the lifecycle of the transport infrastructure.
Specifically, this menu allows operators to establish physical connections (fiber links between nodes), build out the infrastructure (defining the topology and node roles), and most importantly, provision services (such as ODUk or Optical Channel services). While the EPT (now WaveSuite Planner) designs the network, and those files can be used as a reference, the actual "birth" of a service in the live network-mapping it from the source transponder to the destination through the required ROADM degrees-is executed via the Deploy menu. It translates the high-level intent into specific cross-connect commands sent to the individual Network Elements (NEs), ensuring that the underlying hardware is correctly configured to carry client traffic.
NEW QUESTION # 45
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