Passing the 4A0-205 Nokia Optical Networking Fundamentals Certification Exam: Updated 4A0-205 Dumps V9.03 Available

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1. How does a Raman pump work in the 1830 specific implementation?

The amplification is done simultaneously for all channels as they enter the board.

As the incoming signal power increase, the gain of the amplifier is reduced.

The pump light travels in the same direction of the signal, amplifying it while it flows in the fiber towards the following node.

The pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node.

2. Which of the following sentences about FlexGrid is false?

FlexGrid allows a more efficient channel spacing.

Channels in FlexGrid systems are allocated with a granularity of 27.5GHz.

FlexGrid systems use specific sets of boards. Old generation WDM systems need to be upgraded to support FlexGrid.

The FlexGrid is currently standardized by ITU-

3. Which of the following statements is true about chromatic dispersion (CD)?

Different channels have different bandwidth and this causes different CD performances.

The fiber attenuation changes along the fiber, and when the light crosses these differences the CD takes place.

Different wavelengths propagate at different speeds within the same media and therefore different colors travel in the fiber with different speed.

The fiber attenuation introduces inter-channel interference.

4. Which of the following applications is related to Wavelength Tracker tool?

Collecting logs related to possible issue affecting a wavelength path

Tracking the protection path for a specific wavelength

Tracing the end-to-end wavelength optical power

Correcting errors related to wavelength inconsistencies

5. What is the purpose of the validate step in the EPT design process?

During this step, the configuration available on the involved network elements is compared with the design provided byEP

This step is used to measure optical power performances over an existing network before making changes.

This step is optional and is useful to verify the network element layout before going through the commission step.

During this step, the run design action is triggered for network design consistency check and errors fixing.

6. What is a degree-1 node?

A node with only one direction and therefore a terminal node

A node with only one express channel and therefore made of two sides

A node with only east and west sides without directions towards north and south

A node with one direction only and therefore used as In-Line-Amplifier (ILA)

7. What is the function of a pre-amplifier in an optical network?

Through the pre-amplifier, the optical signal is amplified at the receiver side after it travels along the fiber from another node.

Through the pre-amplifier, the optical signal is amplified at the transmitter side before it is sent to the line span.

Through the pre-amplifier, the optical signal is amplified both the receiver side and at the transmitter side.

Through the pre-amplifier, the optical signal is amplified within the node internally to recover internal losses due, for instance, to cascaded filters.

8. What does it take to get connected to the NSP platform?

A browser and the NSP IP address; and from the landing page, the NSP application should be downloaded and launched.

A browser and the NSP IP address. Then, a browser plugin needs to be installed and the laptop rebooted before the NSP can be correctly reached.

A browser, the NSP IP address, and the credentials to access the web-based interface (WebUI).

The NSP package should be downloaded from the Nokia website and properly licensed for thespecific workstation to be used.

9. Is it possible to mix PSS-24x and PSS-8x shelves In an SWDM configuration?

Yes, as both can be equipped within the same node

No, as they are not compatible and cannot be used within the same node

Yes, but the PSS-24X shelf must be configured as a master

Yes, but the PSS-8X shelf must be configured as a master

10. What is the metro area network?

The metro area network is that portion of network that passes through a city to provide connections to several customers.

The metro area network is located between access and core domains.

The metro area network is made of OCS/SWDM nodes only, as no pure photonic nodes are used here.

The metro area network is located in between two access area networks and made of photonic nodes only (no OCS/SWDM nodes are used there).

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