A.ping count 10 10.0.29.1 detail B.ping number 10 10.0.29.1 detail C.ping count 10 10.0.29.1 extensive D.ping number 10 10.0.29.1 extensive
A.show ospf neighbor B.show ospf database C.show ospf interface D.show ospf adjacency
A.4 B.15 C.48 D.50
A.input error counter B.interface MTU size C.input packets counter D.the IP address on logical interface fe-0/0/0.0
A.load override reset B.load factory-default C.rollback factory-default D.request system factory-default