A.Automatic summarization at classful boundries can cause problems on discontinuous subnets
B.EIGRP and OSPF are classful routing protocols and summarize routes by default
C.RIPv1 and OSPF are classless routing protocols
D.Classful routing protocols send the subnet mask in routing updates

A.to uniquely identify devices at Layer 2
B.to allow communication with devices on a different network
C.to differentiate a Layer 2 frame from a Layer 3 packet
D.to establish a priority system to determine which device gets to transmit first
E.to allow communication between different devices on the same network
F.to allow detection of a remote device when its physical address is unknown

A. It converges quickly.
B. OSPF is a classful routing protocol.
C. It uses cost to determine the best route.
D. It uses the DUAL algorithm to determine the best route.
E. OSPF routers send the complete routing table to all directly attached routers.
F. OSPF routers discover neighbors before exchanging routing information.

A.Cisco IOS IPsec/SSL VPN client
B.Cisco VPN Clinet
C.ISDN terminal adapter
D.Cisco Adaptive Security Appliance

A.The OSPF area is not configured properly.
B.The priority on R1 should be set higher.
C.The cost on R1 should be set higher.
D.The hello and dead timers are not configured properly.
E.A backup designated router needs to be added to the network.
F.The OSPF process ID numbers must match.