Which two are characteristics of the IS-IS protocol but not OSPF?

Which two are characteristics of the IS-IS protocol but not OSPF? (Choose two.)

Which two are characteristics of the IS-IS protocol but not OSPF? (Choose two.)

A.
forms adjacencies with all neighbors

B.
utilizes SPF algorithm

C.
provides routing support for multiple network layer protocols

D.
supports demand circuit routing

E.
three layers of hierarchical routing

F.
provides for network scalability by allowing the network to be separated into areas



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