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4A0-220 - Nokia GMPLS-Controlled Optical Networks

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4A0-220 Questions and Answers

Question # 1

Which of the following statements about the Wait for Server Restoration (WSR) parameter in the MRN is correct?


When WSR is true, the LO optical channel remains in the link until the failure is fixed.


When WSR is false, if the failed optical channel can be restored at LO, the data traffic stays in the tunnel.


When WSR is true, the LO channels do not wait for the LI services to restore.


When WSR is false, the LI services do not wait for the LO restoration and restore through LI switching.

Question # 2

What is the function of the OSPF-TE protocol?


To monitor the availability of the links interconnecting adjacent nodes


To exchange with other nodes data about the state of links


To assign different priority to various types of transported signals


To create an MPLS tunnel between two or more end points

Question # 3

What is Tunnel Property Heritage?


The hierarchy tunnels cannot be nested unless they share the same properties.


Maximum allowed bandwith is propagated from HO to LO LSPs.


A restored tunnel inherits the ODUk flows.


Cost, SRLG, and Color properties are propagated from HO to LO LSPs.

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