Question 1

Which of the following comparisons between E-pipes and VPLSes is FALSE?

Options :

A : They both function as a Layer 2 switch from the service provider-s perspective.

B : They both support SAP encapsulations of null, dot1Q and Q-in-Q.

C : They both use SAPs as the demarcation point between the customer and the provider.

D : MAC addresses are learned by VPLSes, but not by E-pipes.

Answer: A

Question 2

What are the default Hello and Dead timer intervals for OSPF on the Nokia 7750 SR?

Options :

A : 5 and 15 seconds

B : 10 and 30 seconds

C : 5 and 20 seconds

D : 10 and 40 seconds

Answer: D

Question 3

Identify two attributes of Distance Vector Protocols: (Choose two)

Options :

A : Use split horizon by default.

B : Send information about directly connected links to neighbors at periodic intervals.

C : Use holddown timers when topologies change to allow for convergence.

D : Maintain multiple databases: neighbor, topology and routing.

Answer: A,C

Question 4

Click on the exhibit.An LSP traverses R1-R2-R4-R6 and one-to-one fast reroute with link protection is enabled. All links have the same cost. Which of the following about DMP and MP is TRUE?

Options :

A : R3 and R5 become DMPs; R6 becomes MP.

B : R3 and R5 become DMPs; R4 becomes MP.

C : R3, R5, and R6 become DMPs; R4 becomes MP.

D : R1, R3, and R5 becomes DMPs; R4 and R6 become MPs.

Answer: A

Question 5

A router receives an OSPF database description packet from a neighbor that references an LSA, which is already in the router's LSDB. The sequence number in the DBD packet is lower than the sequence number of the LSA in the LSDB.What action does the router take?

Options :

A : The router sends a link-state update to its neighbor.

B : The router sends a link-state acknowledgement to its neighbor.

C : The router updates the information in its LSDB with the information received from its neighbor.

D : The router sends a link-state request to its neighbor.

E : The router takes no action.

Answer: A

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