Refer to the exhibit.
If the router R1 returns the given output and has not had its router ID set manually, what address will EIGRP use as its router ID?
A . 192.168.1.2
B . 172.16.4.1
C . 192.168.10.2
D . 1.1.1.1
Answer: D
Explanation:
The router ID is selected according to the following rules:
manual configuration
highest up/up loopback
highest up/up physical interface