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Nokia 4A0-205 Exam Overview:

Certification Vendor:	Nokia
Exam Name:	Nokia Optical Networking Fundamentals
Exam Number:	4A0-205
Exam Price:	$125 USD
Real Exam Qty:	40
Available Languages:	English
Exam Format:	Multiple Choice
Exam Duration:	90 minutes
Related Certifications:	Nokia Optical Network Services Expert Certification Nokia Optical Network Professional Certification Nokia Certified Optical Network Automation Professional
Sample Questions:	Nokia 4A0-205 Sample Questions
Exam Way:	Pearson VUE testing center or online proctored exam.
Pre Condition:	No mandatory prerequisites.
Official Syllabus URL:	https://www.nokia.com/networks/training/onc/exams/optical-networking-fundamentals/

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Nokia 4A0-205 Exam is an industry-standard certification that is recognized by many organizations worldwide. It is an excellent way for professionals to demonstrate their knowledge and expertise in optical networking and gain a competitive edge in the job market. Nokia Optical Networking Fundamentals certification is also an excellent way to validate one's skills and knowledge to employers, clients, and colleagues.

Nokia 4A0-205 Certification Exam is an important milestone for professionals in the optical networking field. It provides a comprehensive assessment of the candidate's knowledge and skills and can open up new career opportunities. With the right preparation and dedication, anyone can achieve this valuable certification and advance their career in the telecommunications industry.

Nokia Optical Networking Fundamentals Sample Questions (Q19-Q24):

NEW QUESTION # 19
How are the EPT systems related to NFM-T when CPB is performed?

A. The systems are not reported on CPB, as this Is transparent to the user and the whole network is validated and provisioned in one step
B. The systems are displayed on the CPB panel and they can be individually selected
C. The systems are displayed on the CPB panel, however they cannot be individually selected as they need to run all together
D. The systems are not reported on CPB, but only through the Equipment Manager

Answer: B

Explanation:
The EPT systems are displayed on the CPB (Commissioning Parameter Builder) panel and they can be individually selected. This allows the user to configure the network elements in the network and provision them according to their specific requirements. The systems are not reported on CPB, but through the Equipment Manager. The Equipment Manager is the interface used to configure the network elements and the EPT systems. The NFM-T is not related to the CPB and does not affect the CPB process.

NEW QUESTION # 20
What is the purpose of the NFM-T deploy menu?

A. It is used to create new network instances, such as physical connections, infrastructures and services.
B. It is used to deploy additional shelves to existing SWDM nodes.
C. It is used to import EPT files to deploy the network based on the EPT design.
D. It is used to deploy new operators (administrator, observers, and so on) to access the platform.

Answer: A

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 # 21
In which window(s) does the attenuation reach its minimum peak?

A. Second window (1300 nm)
B. Both first and second windows
C. First window (850 nm)
D. Third window (1550 nm)

Answer: D

Explanation:
The third window (1550 nm) is where the attenuation reaches its minimum peak. This is because the materials used in fiber optic cables have minimal absorption in this wavelength range. The first and second windows (850 nm and 1300 nm respectively) have higher attenuation due to the materials used in the fiber optic cables.

NEW QUESTION # 22
Which of the following is NOT a troubleshooting functionality of the Wavelength Tracker?

A. Detecting unexpected or missing channels.
B. Tracing a service along an optical path.
C. Performing channel power monitoring.
D. Testing a node's internal fiber connectivity before service provisioning.

Answer: D

Explanation:
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.

NEW QUESTION # 23
What is the definition of OSNR?

A. The OSNR is defined as the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.
B. The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth.
C. The OSNR is defined as the ratio between the transmitted optical power and the received optical power over 1 km of fiber including both signal and optical noise.
D. The OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.

Answer: B

Explanation:
The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth. This is also known as the signal-to-noise ratio (SNR), and it is a measure of how much signal is present in the optical signal compared to the noise, usually expressed in decibels (dB).

NEW QUESTION # 24
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