多項選擇題Half of your network uses RIPv2 and the other half runs OSPF. The networks do not communicate with each other. Which two of these factors describe the impact of activating EIGRP over each separate part?()

A.EIGRP will not be accepted when configured on the actual RIPv2 routers.
B.OSPF will no longer be used in the routing table, because you only have EIGRP internal routes running.
C.OSPF will no longer be used in the routing table, because you only have EIGRP external routes running.
D.RIPv2 will populate its RIP database but not its routing table, because you only have EIGRP external routes running.
E.RIPv2 will populate its RIP database but not its routing table, because you only have EIGRP internal routes running.
F.OSPF database will have RIPv2 routes.


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4.多項選擇題The core of a network has four routers connected in a square design with Gigabit Ethernet links using /30 subnets. The network is used to carry voice traffic and other applications. Convergence time is taking more than expected. Which three actions would you take to improve OSPF convergence time?()

A.Increase MTU of the interfaces to accommodate larger OSPF packets.
B.Change the network type to point-to-point on those links.
C.Reduce SPF initial timer.
D.Increase hello interval to avoid adjacency flapping.
E.Enable OSPF

7.單項選擇題Unicast Reverse Path Forwarding can perform all of these actions except which one?()

A.examine all packets received to make sure that the source addresses and source interfaces appear in the routing table and match the interfaces where the packets were received
B.check to see if any packet received at a router interface arrives on the best return path
C.combine with a configured ACL
D.log its events,if you specify the logging options for the ACL entries used by the unicast rpf command
E.inspect IP packets encapsulated in tunnels, such as GRE

8.單項選擇題Which of these statements accurately identifies how Unicast Reverse Path Forwarding can be employed to prevent the use of malformed or forged IP sources addresses?()

A.It is applied only on the input interface of a router.
B.It is applied only on the output interface of a router.
C.It can be configured either on the input or output interface of a router.
D.It cannot be configured on a router interface.
E.It is configured under any routing protocol process.

10.多項選擇題Which two of these steps are minimum requirements to configure OSPFv3 under IPv6?()

A.Configure a routing process using the command ipv6 router ospf [process-id].
B.Add the network statement for the interfaces on which OSPF will run.
C.Configure OSPF on the interface that it will run on.
D.Use the passive-interface command on the interfaces on which OSPF should not run.
E.Enable routing.