A.path cisco.com B.debug cisco.com C.trace cisco.com D.traceroute cisco.com
A.不兼容TACACS和XTACACS B.認(rèn)證和授權(quán)分離 C.加密所有通信 D.使用TCP端口49
A.Serial0/1 is up, line protocol is down B.Serial0/1 is down, line protocol is down C.Serial0/1 is up, line protocol is up D.Serial0/1 is administratively down, line protocol is down