Online Access Free 4A0-101 Exam Questions

Which of the following best describes the actions taken by an IS-IS router after it receives an LSP on a broadcast interface that is newer than the one in its database?

• A.The router updates its database with the LSP, acknowledges the LSP with a PSNP and floods a copy to its other neighbors.
• B.The router updates its database with the LSP and acknowledges it with a PSNP.
• C.The router updates its database with the LSP and floods a copy to its other neighbors.
• D.The router sends a copy of the LSP from its database to its neighbor.

Click the exhibit button.

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Which of the following statements regarding the OSPF LSAs in the network is true?

• A.Router R1 generates a type 5 LSA that is flooded through all OSPF areas.
• B.Router R1 generates a type 7 LSA that is flooded through area 1. Router R3 generates a type 5 LSA that is flooded through areas 0 and 2.
• C.Router R1 generates a type 5 LSA that is flooded through area 1. Router R2 generates a type 7 LSA that is flooded through areas 0 and 2.
• D.Router R1 generates a type 7 LSA that is flooded through all OSPF areas.

What best describes the type of packets used by OSPF routers to exchange updates on a pointto-point link?

• A.IP packets sent to an IP unicast address.
• B.UDP packets sent to an IP multicast address.
• C.Ethernet frames sent to an Ethernet multicast address.
• D.IP packets sent to an IP multicast address.

Click on the exhibit.

What triggers convergence of the routing protocol when the link between switch 1 and switch 2 goes down?

• A.Convergence is triggered when the physical interfaces between routers R1 and R2 go down.
• B.Convergence is triggered when an LSA is sent from router R1 to router R2 to indicate that the link is down.
• C.Convergence is triggered when the adjacency between routers R1 and R2 drops as a result of hello timeouts.
• D.Convergence will not be triggered because switches cannot run routing protocols between them.
• E.Convergence is triggered when the switches notify the routers about the link-state info.

Click on the exhibit.

Given the output, which of the following is the most accurate statement about the network?

• A.There are five broadcast links and there are no point-to-point links.
• B.There are five broadcast links. It's not possible to say how many point-to-point links there are.
• C.There are five broadcast links and there are five point-to-point links.
• D.It's not possible to say how many broadcast or point-to-point links there are.