Refer to the exhibit.
If EIGRP is configured between two routers as shown in this output, which statement about their
EIGRP relationship is true?
A.
The routers will establish an EIGRP relationship successfully.
B.
The routers are using different authentication key-strings.
C.
The reliability metric is enabled.
D.
The delay metric is disabled.
Bandwidth (K1)
Load (K2)
Delay (K3)
Reliability (K4)
MTU (K5)
IMHO the answer is A.
According to
https://www.cisco.com/c/en/us/td/docs/ios/iproute_eigrp/command/reference/ire_book/ire_i1.html
we have:
“If k5 equals 0, the composite EIGRP metric is computed according to the following formula:
metric = [k1 * bandwidth + (k2 * bandwidth)/(256 – load) + k3 * delay]
If k5 does not equal zero, an additional operation is performed:
metric = metric * [k5/(reliability + k4)]”
In our case K5=0 so the first formula only applies. It does not involve K4, so the modified value of 1 doesn’t matter. The metric is calculated as by default values (1,0,1,0,0).
Hence C and D are false.
There is nothing about authentication in the output so B is probably false as well.
If both routers show output above, then they have the same AS number and the same K-values, so they will “establish an EIGRP relationship successfully”.