单项选择题
A.在接口FastE thernet0/0应用access-group14
B.在access-list14中添加access-list 14 permit any any
C.配置FastE therent0/0接口的IP地址为10.90.201.1
D.为接口FastE thernet0/0添加一个接口描述
多项选择题 What three pieces of information can be used in an extended access list to filter traffic (Choose three.)（）。
单项选择题 Acknowldgement, Sequencing, and Flow control are characteristics of which OSI layer?（）
单项选择题 The administrator is unable to establish connectivity between two Cisco routers. Upon reviewing the command output of both routers, what is the most likely caust of the problem?（）
