A router has been configured with the commands router eigrp 9 and network 72.16.1.0 0.0.0.255. No other EIGRP - related commands have been configured.  The nswers list the IP addresses that could be assigned to this router's Fa0/0 interface.
Which answers list an IP address/prefix length that would cause the router to enable IGRP on Fa0/0?（）

A. Router R1 will advertise connected and summary routes only.
B. The eigrp stub command will automatically enable summarization of routes on R2.
C. Router R1 is configured as a receive - only neighbor and  will not send any connected, static, or summary routes.
D. The eigrp stub command prevents all routes except a default route from being advertised to R1.
E. The eigrp stub command prevents queries from being sent from R2 to R1.
F. Router R1 will advert ise connected and static routes. The sending of summary routes will not be permitted.

A. Both outgoing and incoming routing updates on R1 will be permitted because the d istribute - 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 up dates 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.

A.When manual summarization is configured, the router immediately creates a route that points to null0 interface
B.Manual route summarization  is configured in router configuration mode when the router is configured for EIGRP routing
C.Manual route summarization is configured on the interface
D.The ip summary - address eigrp command generates a default route with an administrative distance  of 5
E.When manual summarization is configured, the summary route will use the metric of the largest specific metric of the summary routes
F.The ip summary - address eigrp command generates a default route with an administrative distance of 90