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Itcertkr 의 IT전문가들이 자신만의 경험과 끊임없는 노력으로 최고의 Nokia 4A0-205학습자료를 작성해 여러분들이Nokia 4A0-205시험에서 패스하도록 최선을 다하고 있습니다. 덤프는 최신 시험문제를 커버하고 있어 시험패스율이 높습니다. Nokia 4A0-205시험을 보기로 결심한 분은 가장 안전하고 가장 최신인 적중율 100%에 달하는Nokia 4A0-205시험대비덤프를 Itcertkr에서 받을 수 있습니다.
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Optical Network Architecture and Nodes | 20% | - Switched WDM (SWDM) principles - Network topologies and transport architectures - WDM node types and functionalities |
| 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% | - Path and line protection schemes - Availability and survivability concepts - Protection and restoration mechanisms |
| Topic 4: Optical Networking Basics | 20% | - Fiber types, properties and transmission principles - Optical components and functions - Optical signal propagation and characteristics |
| Topic 5: Network Management and Operations | 20% | - Network design with 1830 EPT / WaveSuite Planner - NFM-T / WS-NOC management system overview - Network commissioning and monitoring - Performance monitoring, alarms and troubleshooting |
Itcertkr의 Nokia인증 4A0-205덤프는 최근 유행인 PDF버전과 소프트웨어버전 두가지 버전으로 제공됩니다.PDF버전을 먼저 공부하고 소프트웨어번으로 PDF버전의 내용을 얼마나 기억하였는지 테스트할수 있습니다. 두 버전을 모두 구입하시면 시험에서 고득점으로 패스가능합니다.
질문 # 59
Which statement is correct about node synchronization?
정답：D
설명：
Node synchronization is a process of keeping the NFM-T database in sync with the nodes in the network. The synchronization process will download all the items from the node, including NE parameters, ports, alarms, internal links, etc., to the NFM-T database. This ensures that the NFM-T database is up to date and the network is running efficiently.
질문 # 60
Which of the following applications is related to Wavelength Tracker tool?
정답：C
설명：
Tracking the protection path for a specific wavelength. The Wavelength Tracker tool is used to track the protection path of a specific wavelength, allowing the user to quickly identify any issues that may arise and take corrective action.
Wavelength Tracker tool is a feature used to monitor and track the protection path for a specific wavelength in an optical network. It can also be used to monitor and verify the working state of the protection path, and to detect and troubleshoot protection switch events. The Wavelength Tracker tool can be used to monitor the protection path for a specific wavelength, and it can also be used to trace the end-to-end path of a wavelength through the network. This tool is typically used by network operators to monitor and troubleshoot wavelength-level issues in the network, such as protection switch events or wavelength-level performance issues.
질문 # 61
Which of the following are the main reasons for fiber attenuation?
정답：A
설명：
Scattering and absorption are the main reasons for fiber attenuation. Scattering occurs when light bounces off the sides of the fiber, while absorption happens when light is absorbed by the glass or other materials that make up the fiber. Chromatic dispersion (CD) and polarization mode dispersion (PMD) are also factors that can cause attenuation, but they are not the main causes. Small channel spacing can also cause attenuation, but it is a secondary factor and is only significant in certain cases.
질문 # 62
Which of the following is NOT a troubleshooting functionality of the Wavelength Tracker?
정답：B
설명：
Comprehensive and Detailed Explanation From Nokia Optical Networking Fundamentals:
The Nokia Wavelength Tracker is a unique and powerful technology used within the 1830 PSS portfolio to provide "layer 0" visibility. It works by embedding unique optical signatures (keys) onto each wavelength at the source (transponder). These signatures allow the system to identify and monitor individual channels as they traverse the optical network without the need for expensive Optical Spectrum Analyzers (OSAs) at every site.
Specifically, the Wavelength Tracker enables tracing a service along its path by identifying these unique keys at various monitoring points. It also excels at channel power monitoring, as it can measure the power level of each specific wavelength independently. Furthermore, it is instrumental in detecting unexpected or missing channels (ghost signals or misrouting) by comparing the detected keys against the expected provisioning data in the management system. However, it is not used for testing a node's internal fiber connectivity before service provisioning. Internal fiber connectivity is typically verified during the commissioning phase using the Commissioning and Power Balancing (CPB) tool within WS-NOC or through manual physical inspection and "fiber-it" procedures. Wavelength Tracker requires an active, keyed optical signal to function, which generally exists only during or after the service provisioning stage.
질문 # 63
Which use case is most suitable for the deployment of a star topology?
정답：A
설명：
A star topology is a network design where all devices are connected to a central hub, which acts as a central point of control and management for the network. This type of topology is commonly used in access networks, where a central node is used to aggregate traffic from multiple users or devices, and then forward it to the core network. This design allows for efficient use of resources and easy management of the network.
Reference:
"Computer Networking: A Top-Down Approach" by James Kurose and Keith Ross (Chapter 3)
"Data Communications and Networking" by Behrouz A. Forouzan (Chapter 2)
질문 # 64
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4A0-205인증시험대비 공부자료: https://www.itcertkr.com/4A0-205_exam.html
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