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

A.
R1 is configured with the ip summary-address command.

B.
The route to 10.2.0.0/16 was redistributed into EIGRP.

C.
R1 is configured with the variance command.

D.
A default route has been redistributed into the EIGRP autonomous system.

E.
The router at 10.1.1.2 is configured with the ip default-network 0.0.0.0 command.

F.
R1 is sourcing an external EIGRP route from Null0.

Explanation:
From the routing table above, we see that network 172.16.1.0 can be reached via 2 unequal
paths (with FD of 23072000 & 20640000) so surely R1has been configured with the
“variance” command -> C is correct.
By configuring a default route and redistribute it into EIGRP you will get the line “D *EX
0.0.0.0/0 …” line in the routing table of that router -> D is correct.
From the line “10.2.0.0/16 is a summary, 00:16:18, Null0″we know that this network has
been summarized with the “ip summaray-address” command (notice that 10.2.0.0 is not the
major network of net-> A is correct.