Which two statements about the default behavior of IS-IS are true?

Which two statements about the default behavior of IS-IS are true? (Choose two.)

A.
The default IS-IS router type is L1/L2.

B.
The default IS-IS metric type is wide.

C.
The default IS-IS interface circuit type is L1/L2.

D.
By default, two IS-IS routers must use the same hello interval and hold timer in order to become
neighbors.