Free 4A0-205: Nokia Optical Networking Fundamentals Exam Questions and Answers

What is the OAMP LAN interface?

• AA. It is an RJ-45 interface (a common Ethernet port) used for cascading 1830 PSS nodes (e.g., external shelves)
• BB. It is an RJ-45 interface (a common Ethernet port) that has to be configured with an IP address for node reachability and management
• CC. It is an RJ-45 interface (common Ethernet port) used to connect one or more client ports (e.g., 1Gb/s or legacy 100Mbit/s client flows)
• DD. It is an RJ-45 interface (a common Ethernet port) used to export active alarms to an external device, typically equipped with several LEDs

How are the EPT systems related to NFM-T when CPB is performed?

• AA. The systems are not reported on CPB, as this Is transparent to the user and the wholenetwork is validated and provisioned in one step
• BB. The systems are displayed on the CPB panel, however they cannot be individually selected as they need to run all together
• CC. The systems are displayed on the CPB panel and they can be individually selected
• DD. The systems are not reported on CPB, but only through the Equipment Manager

Which mechanisms can be put in place to increase network survivability?

• AA. Protection, where backup resources are pre-allocated and reserved; or restoration, where each trail can be recovered thanks to a 1+1 protection mechanism
• BB. Protection, where backup resources are allocated upon failure; or restoration, where each trail can be recovered thanks to a 1+1 protection mechanism
• CC. Protection, where backup resources are allocated upon failure; or restoration, where backup resources are pre-allocated and reserved
• DD. Protection, where backup resources are pre-allocated and reserved; or restoration, where backup resources are allocated upon failure.

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

• AA. Yes, during the link creation through the wizard
• BB. No, a unique type is allowed per design for all segments
• CC. No, as the fiber type is selected for links only and it's one for whole design
• DD. Yes, during the segment creation phase or editing

What is a degree-1 node?

• AA. A node with only one direction and therefore a terminal node
• BB. A node with only one express channel and therefore made of two sides
• CC. A node with only east and west sides without directions towards north and south
• DD. A node with one direction only and therefore used as In-Line-Amplifier (ILA)

What is the purpose of the NFM-T node synchronization?

• AA. The partial or full node synchronization allows several entities/items defined at node level to be retrieved into the NFM-T database (upload).
• BB. The partial or full node synchronization allows several entities/items defined at NFM-T level to be written into the node database (download).
• CC. The partial or full node synchronization allows several entities/items defined at EPT level to be retrieved into the NFM-T database (upload from design).
• DD. The partial or full node synchronization allows several entities/items defined at NFM-T level to be exported into an XML file, to be used as input for EPT (download to design).

What is the metro area network?

• AA. The metro area network is that portion of network that passes through a city to provide connections to several customers.
• BB. The metro area network is located between access and core domains.
• CC. The metro area network is made of OCS/SWDM nodes only, as no pure photonic nodes are used here.
• DD. 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).

What is a trail?

• AA. An entity to encapsulate a low order signal into a high order container
• BB. A transparent transport of a client signal
• CC. A link between end points to increase the power budget of the optical link
• DD. A physical link between two optical amplifiers

Which application generates the commissioning file(s)?

• AA. NFM-T
• BB. NSP
• CC. CPB
• DD. EPT

What is the definition of OSNR?

• AA. 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.
• BB. The OSNR is the ratio between the optical output signal power and the optical input signal power of the device being analyzed.
• CC. The OSNR is defined as the ratio between the average optical signal power and the average optical noise power over a specific spectral bandwidth.
• DD. The OSNR is defined as the ratio between the optical signal power (including noise) and the optical noise power over a specific spectral bandwidth.