A network design shows that R1 has four different possible paths from itself to the Data
Center subnets. Which one of the following commands is most likely to show you all the
possible next-hop IP addresses for these four possible routes?

A.
show ip eigrp topology

B.
show ip eigrp topology all-links

C.
show ip route eigrp

D.
show ip route eigrp all-links

E.
show ip eigrp topology all-learned

Explanation:
Of the five options, the show ip route eigrp all-links and show ip eigrp topology
all-learned are not valid commands. Both show ip eigrp topology and show ip route
eigrp can show at most successor and feasible successor routes. However, show ip eigrp
topology all-links shows also nonfeasible successor routes, making it more
likely to show all possible neighbors.