A.  

Demodulating the incoming signal

B.  

Compensating for optical power attenuation

C.  

Compensating for chromatic dispersion

D.  

Compensating for attenuation through an optical-electrical-optical amplification

A.  

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

B.  

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

C.  

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

D.  

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

A.  

Refraction and reflection

B.  

Scattering and absorption

C.  

Chromatic dispersion (CD) and polarization mode dispersion

D.  

Small channel spacing

A.  

OADMs allow the user to terminate specific services through transponders.

B.  

OADMs allow the user to pass-through specific services at the wavelength optical level (express channels).

C.  

OADMs always require O-E-O conversion when passing-through optical channels.

D.  

There are two main general classes of OADMs: FOADMs and ROADMs.

A.  

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.

B.  

The OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.

C.  

The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth.

D.  

The OSNR is defined as the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.

A.  

A tool supporting nodes' automatic provisioning on NFM-T.

B.  

A tool to validate internal fiber connectivity on CDC-F 2.0 nodes.

C.  

A tool supporting zero-touch power management on PSS-32 equipment.

D.  

A tool supporting external links autodiscovery on NFM-T.

A.  

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

B.  

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

C.  

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

D.  

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

A.  

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

B.  

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

C.  

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

D.  

The fiber attenuation introduces inter-channel interference.

A.  

These windows correspond to three different minimum and maximum optical power levels used for optical transmission.

B.  

These windows are three different wavelength intervals where the WDM optical transmission occurs.

C.  

These three windows are three different angles of incidence of the light injected by the laser into the fiber.

D.  

Different optical transmission windows correspond to different safety requirements and rules for the related lasers operating with these windows.

A.  

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

B.  

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

C.  

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

D.  

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

A.  

Coherent systems need carrier phase information at the receiver.

B.  

Only multi-mode fibers can be used with coherent transmissions.

C.  

The channel allocation is flexible, according to the channel size of the signals.

D.  

At each receiver, a dispersion compensation unit is often necessary, depending on the fiber length.

A.  

Yes, during the link creation through the wizard

B.  

No, a unique type is allowed per design for all segments

C.  

No, as the fiber type is selected for links only and it's one for whole design

D.  

Yes, during the segment creation phase or editing

A.  

Low noise

B.  

High distortion

C.  

High jitter

D.  

Presence of high inter-symbolic interference

A.  

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

B.  

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.

C.  

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

D.  

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

A.  

Yes, the user can apply manual changes directly from this view

B.  

Yes, but the user can modify only the node name and location

C.  

No, this view is used to display a close-up view of the node

D.  

Yes, the user can apply manual changes but only for non-GMPLS nodes, as the control plane reserves node resources not editable by the user

A.  

Collecting logs related to possible issue affecting a wavelength path

B.  

Tracking the protection path for a specific wavelength

C.  

Tracing the end-to-end wavelength optical power

D.  

Correcting errors related to wavelength inconsistencies

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, however they cannot be individually selected as they need to run all together

C.  

The systems are displayed on the CPB panel and they can be individually selected

D.  

The systems are not reported on CPB, but only through the Equipment Manager