Refer to the exhibit. Routers R1 and R2 are running EIGRP and have converged. On the
basis of the information that is presented, which statement is true?
A.
Both outgoing and incoming routing updates on R1 will be permitted because the
distribute-list 20 out Serial0/0 command cannot be used with association with the outgoing
interface.
B.
All incoming routing updates from R2 will be suppressed, but the outgoing updates will
continue to be sent.
C.
Both outgoing and incoming routing updates on R1 will be stopped because of the
passive-interface Serial0/0 configuration statement.
D.
All outgoing routing updates from router R1 to router R2 will be suppressed, but the
inbound updates will continue to be received.
Explanation:
You can use the passive-interface command to control the advertisement of routing
information. The command enables the suppression of routing updates over some interfaces
while it allows updates to be exchanged normally over other interfaces.
With most routing protocols, the passive-interface command restricts outgoing
advertisements only. However, when used with Enhanced Interior Gateway Routing Protocol
(EIGRP), the effect is slightly different. With EIGRP running on a network, the passiveinterface command stops both outgoing and incoming routing updates, since the effect of the
command causes the router to stop sending and receiving hello packets over an interface.http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080093f0a.shtml