单项选择题

A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. What is the highest layer of the protocol stack that the nework administrator is using for this operation?（）

A.application
B.presentation
C.session
D.transport
E.internet
F.datalink

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单项选择题

根据下图中展示的show running-config命令的结果。网络管理员该如何做才能允许工作站连接到FastEthernet0/0接口去获得一个IP地址？（）

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.)（）。

A.protocol
B.VLAN number
C.TCP or UDP port numbers
D.source switch port number
E.source IP address and destination IP address
F.source MAC address and destination MAC address

单项选择题

Acknowldgement, Sequencing, and Flow control are characteristics of which OSI layer?（）

A.Layer 2
B.Layer 3
C.Layer 4
D.Layer 5
E.Layer 6
F.Layer 7