Which two values must be identical to allow IS-IS devices to become neighbors? (Choose two.)
A.
interface MTU
B.
authentication key
C.
IP MTU
D.
CLNS address
E.
NSEL
F.
area ID
Which two values must be identical to allow IS-IS devices to become neighbors?
Which two values must be identical to allow IS-IS devices to become neighbors? (Choose two.)
A & B are correct.
Probably, A is correct for the exam, but actually MTU values can be different without any additional configuration.