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Nokia 4A0-205 Exam Questions
- Nokia Optical Network Professional ONP Certifications
- Nokia Optical Network Services Expert Certifications
- Topic 1: OTN hierarchy, trails, and services switching/ Network creation, analysis, and reporting
- Topic 2: SWDM (photonic and switched) nodes/ SWDM nodes supervision on NFM-T
- Topic 3: Basics of the Network Management System/ Introduction to WDM networks
- Topic 4: Foundation of survivability and availability/ Basics of Optical Network Design
- Topic 5: SWDM-based optical network management/ SWDM alarms, conditions, logs, and PMs
- Topic 6: EPT interface and terminology/ Levels and topologies/ Network commissioning steps
Free Nokia 4A0-205 Exam Actual Questions
Note: Premium Questions for 4A0-205 were last updated On Nov. 16, 2024 (see below)
What is the definition of OSNR?
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).
How does a Raman pump work in the 1830 specific implementation?
In Raman amplification, a pump laser is used to excite the Raman-active molecules in the fiber, which then amplifies the signal light as it travels in the opposite direction. In the 1830 specific implementation, the pump laser is typically a high-power laser that is launched into the fiber in the opposite direction to the signal. The pump light interacts with the Raman-active molecules in the fiber, which then amplifies the signal light as it travels in the opposite direction. This allows the Raman pump to provide a gain that increases with distance, which can be used to compensate for the loss of signal power as it travels through the fiber.
Which of the following sentences about FlexGrid is false?
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.
'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
What is the function of a pre-amplifier in an optical network?
A pre-amplifier is an optical amplifier that is used to boost the power of the received optical signal before it is detected by the receiver in an optical communication system. This is done to overcome the loss of power that occurs as the signal travels through the optical fiber and to ensure that the receiver can detect the signal. The pre-amplification stage is typically located close to the receiver in order to minimize the distance that the signal has to travel between the amplifier and the receiver, which helps to reduce the noise and distortion in the signal.
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