【导读】
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1. [多选题]The Ezonexam network administrator wants to ensure that only a single web server can connect to pot Fa0/1 on a catalyst switch. The server is plugged into the switch's Fast Eth. 0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of this server is allowed by switch port Fa0/1? (Choose two)
A. Configure port Fa0/1 to accept connections only from the static IP address of the server
B. Configure the MAC address of the server as a static entry associated with port Fa0/1
C. Employ a proprietary connector type on Fa0/1 that is incomputable with other host connectors
D. Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server
E. Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address
2. [单选题]NAT可以被用于完成多种功能，以下不属于其功能的是：（）
A. 转换内部局部地址
B. 内部全局地址复用
C. TCP负载均衡
D. 内部网络流量控制(network traffic control)
3. [单选题]两个VLAN之间要想通信，应该使用的设备是（）
A. 集线器
B. 二层交换机
C. 路由器
D. PC机
4. [单选题]路由器上，设置端口速率的命令是（）
A. clock rate
B. bandwidth
C. set
D. encap
5. [单选题]FTP工作在OSI哪一层（）
A. 会话层(session layer)
B. 表示层
C. 传输层
D. 应用层
