A. simple password B. HMAC message digest 5 C. Password Authentication Protocol D. Challenge Handshake Authentication Protocol
Routers A and B are connected with a point-to-point OC-3 interface. Each router's OC-3 interface is configured for both Level 1 and Level 2. The routers are configured in the same area. How many IS-IS adjacencies exist between the two routers?()
A.0 B.1 C.2 D.3
A. An Adjacency is formed. B. No IS-IS PDUs are sent C. An Adjacency does not form. D. An Adjacency forms but traffic is not forwarded.