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| Certification Vendor: | Nokia |
|---|---|
| Exam Name: | Nokia Optical Networking Fundamentals |
| Exam Number: | 4A0-205 |
| Real Exam Qty: | 40 |
| Certificate Validity Period: | 3 years |
| Related Certifications: | Nokia Certified Optical Network Automation Professional Nokia Optical Network Professional Certification Nokia Optical Network Services Expert Certification |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Passing Score: | 80% |
| Exam Format: | Multiple-choice questions |
| Exam Price: | $125 USD |
| Recommended Training: | Nokia Optical Networking Fundamentals Course (ER00834) |
| Exam Registration: | Nokia Exam Registration |
| Sample Questions: | Nokia 4A0-205 Sample Questions |
| Exam Way: | Online proctored or onsite at authorized test centers |
| Pre Condition: | No mandatory prerequisites; basic knowledge of networking principles recommended |
| Official Syllabus URL: | https://www.nokia.com/networks/training/onc/exams/optical-networking-fundamentals/ |
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Nokia 4A0-205 (Nokia Optical Networking Fundamentals) exam is a certification test that focuses on validating the candidate's knowledge of optical networking concepts and technologies. Nokia is a well-known and respected company in the telecommunications industry, and obtaining this certification can be beneficial for professionals seeking to advance their careers in this field.
NEW QUESTION # 11
Which mechanisms can be put in place to increase network survivability?
Answer: B
Explanation:
There are two main mechanisms that can be put in place to increase network survivability: protection and restoration. Protection involves pre-allocating and reserving backup resources so that they are ready in case of a failure. Restoration involves allocating backup resources upon failure and using a 1+1 protection mechanism to recover each trail. This ensures that the network is able to re-route traffic in the event of a failure, increasing the overall survivability of the network.
NEW QUESTION # 12
Which application generates the commissioning file(s)?
Answer: A
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 # 13
In which of the following forms does the TTI byte provide information on network elements?
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Nokia Optical Networking Fundamentals:
In the Optical Transport Network (OTN) hierarchy, the TTI (Trail Trace Identifier) is a 64-byte overhead signal used to ensure that the source and destination of a path are correctly connected. It is part of the overhead in the OTU (Optical Transport Unit) and ODU (Optical Data Unit) layers. The TTI provides a mechanism for "path trace" to prevent misconnections. It specifically carries the SAPI (Source Access Point Identifier) and the DAPI (Destination Access Point Identifier).
These identifiers are strings that uniquely identify the source and destination ports. By comparing the "Expected SAPI/DAPI" configured on a port with the "Received SAPI/DAPI" actually coming in over the fiber, the Nokia 1830 PSS can detect fiber patching errors or cross-connect mistakes. If there is a mismatch, the system can trigger a TIM (Trace Identifier Mismatch) alarm and potentially squelch the traffic to prevent data from being delivered to the wrong customer. This is a Layer 1 (OTN) function and is entirely independent of Layer 2 MAC addresses or Layer 3 IP addresses used by the management system for DCN (Data Communication Network) connectivity.
NEW QUESTION # 14
What does it take to get connected to the NSP platform?
Answer: D
Explanation:
To get connected to the Nokia Service Platform (NSP) platform, you need a browser and the NSP IP address. Then, you need the credentials to access the web-based interface (WebUI) for the NSP platform. Once you have these, you can access the NSP platform from a web browser.
NEW QUESTION # 15
How can a mesh network be upgraded so that more services can be transported?
Answer: A
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 # 16
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