Based on the exhibited output, which three statements are true? (Choose three.)

After DUAL calculations, a router has identified a successor route, but no routes have
qualified as a feasible successor. In the event that the current successor goes down, what
process will EIGRP use in the selection of a new successor?

Which three statements about the EIGRP routing protocol are true? (Choose three.)

Which three statements are true about EIGRP route summarization? (Choose three.)

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?

Refer to the exhibit.

Which two statements are true? (Choose two.)

A router has been configured with the commands router eigrp 9 and network
172.16.1.0 0.0.0.255. No other EIGRP-related commands have been configured. The
answers 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 EIGRP on
Fa0/0?

Router R1 has working interfaces S0/0, S0/1, and S0/2, with IP address/prefix combinations
of 10.10.10.1/24, 10.10.11.2/24, and 10.10.12.3/22. R1’s configuration includes the
commands router eigrp 9 and network 10.0.0.0. The show ip eigrp interfaces command lists
S0/0 and S0/1 in the command output, but not S0/2. Which answer gives the reason for the
omission? (Choose two answers.)

Routers R1 and R2 are EIGRP neighbors using their Fa0/0 interfaces, respectively. An
engineer adds the ip hello-interval eigrp 9 6 command to R1’s Fa0/0 configuration.
Which of the following is true regarding the results from this change?

Routers R1 and R2, currently EIGRP neighbors over their Fa0/0 interfaces (respectively),
both use EIGRP authentication. Tuesday at 8 p.m. the neighborship fails.
Which of the following would not be useful when investigating whether authentication
had anything to do with the failure?