A.30 seconds
B.60 seconds
C.90 seconds
D.180 seconds
E.240 seconds

A.proxy
B.dual-stack
C.tunneling
D.dot1q

A.user EXEC mode
B.global configuration mode
C.privileged EXEC mode
D.auxiliary setup mode

A.Router(config)#router ospf 1
B.Router(config)#router ospf 0
C.Router(config)#router ospf area 0
D.Router(config-router)#network 192.168.16.0 0.0.0.255 area 0
E.Router(config-router)#network 192.168.16.0 0.0.0.255 0
F.Router(config-router)#network 192.168.16.0 255.255.255.0 area 0

A.The ip subnet-zero command has been issued on the R1 router.
B.The RIPv2 dynamic routing protocol cannot be used across a Frame Relay network.
C.Split horizon is preventing R2 from learning about the R3 networks and R3 from learning about R2 networks.
D.The 172.16.2.0/25 and 172.16.2.128/25 networks are overlapping networks that can be seen by R1,but not between R2 and R3.
E.The 172.16.3.0/29 network used on the Frame Relay links is creating a discontiguous network between the R2 and R3 router subnetworks.