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.
provides routing support for multiple network layer protocols

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

C.
three layers of hierarchical routing

D.
supports demand circuit routing

E.
utilizes SPF algorithm

F.
forms adjacencies with all neighbors



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