最新的Nokia Optical Networking Fundamentals - 4A0-205免費考試真題

A. Before the transponder, on the client side, towards the external device

B. Between the filters and the amplifiers

C. Between the transponder and the filter

D. Between the transponder and the amplifiers

A. Source and destination MAC addresses

B. Source (SAPI) and Destination (DAPI) Access Point Identifiers

C. Source and destination IP addresses and overhead

D. Source and destination time-slot identifiers

A. Full synchronization retrieves the correlated alarms from the node

B. Node synchronization is executed to align the time of the node to the time of the NFM-T platform

C. Node synchronization is executed to test the reachability of a node

D. Full synchronization retrieves all items from the node (NE parameters. Ports, Alarms, Internal Links, etc)

A. Share a single signal among multiple fibers doing load balancing, and thus increasing the reliability of the optical transmission

B. Increase the bit rate of each client signal by spreading it over multiple wavelengths

C. Transport multiple signals transparently, onto several wavelengths, all together over one single fiber

D. Allocate different signals to different time slots

A. Protection, where backup resources are pre-allocated and reserved; or restoration, where backup resources are allocated upon failure.

B. Protection, where backup resources are allocated upon failure; or restoration, where each trail can be recovered thanks to a 1+1 protection mechanism

C. Protection, where backup resources are pre-allocated and reserved; or restoration, where each trail can be recovered thanks to a 1+1 protection mechanism

D. Protection, where backup resources are allocated upon failure; or restoration, where backup resources are pre-allocated and reserved

A. A service is always associated to a single wavelength, while a trail can involve multiple wavelengths.

B. A trail can interconnect three ports, while a service always two.

C. Services are transported over trails; that is, services are clients with respect to trails.

D. Trails are transported over services; that is, trails are clients with respect to services.

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

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

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

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