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Nokia Optical Networking Fundamentals Sample Questions (Q37-Q42):

NEW QUESTION # 37
Is it possible to select the fiber type independently for each segment while designing a network in EPT?

A. Yes, during the link creation through the wizard
B. Yes, during the segment creation phase or editing
C. No, as the fiber type is selected for links only and it's one for whole design
D. No, a unique type is allowed per design for all segments

Answer: B

Explanation:
Yes, during the segment creation phase or editing. It is possible to select the fiber type independently for each segment while designing a network in EPT. This can be done during the segment creation phase or when editing an existing segment. This allows for more flexibility when designing the network and allows for more efficient use of resources.

NEW QUESTION # 38
Which of the following statements is true about chromatic dispersion (CD)?

A. The fiber attenuation introduces inter-channel interference.
B. Different wavelengths propagate at different speeds within the same media and therefore different colors travel in the fiber with different speed.
C. Different channels have different bandwidth and this causes different CD performances.
D. The fiber attenuation changes along the fiber, and when the light crosses these differences the CD takes place.

Answer: B

Explanation:
Different wavelengths propagate at different speeds within the same media and therefore different colors travel in the fiber with different speed. This phenomenon is known as chromatic dispersion and causes light to spread out as it travels through the fiber over distance, leading to signal attenuation and distortion. The fiber attenuation does not introduce inter-channel interference, but it can cause attenuation of the signal. Different channels have different bandwidths, but this does not affect CD performance.

NEW QUESTION # 39
How are the EPT systems related to NFM-T when CPB is performed?

A. The systems are not reported on CPB, but only through the Equipment Manager
B. 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
C. The systems are displayed on the CPB panel and they can be individually selected
D. The systems are displayed on the CPB panel, however they cannot be individually selected as they need to run all together

Answer: C

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 # 40
What is a Shared Risk Group (SRG)?

A. A set of network resources that share a common failure risk
B. A set of boards that share the same failure risk
C. A set of nodes that share a common risk of hardware failure
D. A set of fibers that share the same latency risk

Answer: A

Explanation:
According to the Nokia Optical Networking documentation, a Shared Risk Group (SRG) is defined as "a set of network resources that share a common failure risk. When a resource in an SRG fails, the other resources in the group are also affected." This can include fibers, boards, nodes, and other network resources. The SRG concept is used in network design and protection mechanisms to ensure survivability and minimal impact on service in case of a failure.

NEW QUESTION # 41
How does a Raman pump work in the 1830 specific implementation?

A. The pump light travels in the same direction of the signal, amplifying it while it flows in the fiber towards the following node.
B. The amplification is done simultaneously for all channels as they enter the board.
C. The pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node.
D. As the incoming signal power increase, the gain of the amplifier is reduced.

Answer: C

Explanation:
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.

NEW QUESTION # 42
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