1. [单选题]路由器下“特权用户模式”的标识符(identifier)是：()
A. >
B. !
C.
D. (config-if)
2. [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
3. [单选题]在OSPF的完全存根区域中，使用以下哪种LSAType报文或其它方式与区域间通信：（）
A. LSAType1.2
B. LSAType3
C. LSAType4
D. 默认路由：0.0.0.0
4. [单选题]命令“ping127.0.0.1”的功能是（）
A. 测试网卡是否正常
B. 测试网关是否正常
C. 测试TCP/IP协议是否正常
D. 测试介质是否正常
5. [单选题]介质工作在OSI的哪一层（）
A. 物理层
B. 数据链路层
C. 网络层
D. 传输层
6. [多选题]You are bringing up a new Ezonexam switch, and wish to connect it via a trunk to another switch from a different vendor, which uses the IEEE standard for the trunking method. When setting the encapsulation type on the trunk, what should you configure on the Cisco switch?
A. Switch(config) switchport trunk encapsulation isl
B. Switch(config) switchport trunk encapsulation ietf
C. Switch(config-if) switchport trunk encapsulation isl
D. Switch(config-if) switchport trunk encapsulation ietf
E. Switch(config-if) switchport trunk encapsulation dot1q
7. [单选题]Why might the Ezonexam network administrator set the configuration register to 0x2142 on a 2600 series Cisco router?
A. To boot the IOS from ROM
B. To reset the console password
C. To upload a new version of the configuration file
D. To upload a new version of the IOS
E. To allow a new memory upgrade to be recognized by the router
8. [单选题]A Ezonexam PC has the IP address 172.16.209.10 /22. What is the subnet of this address?
A. 172.16.42.0
B. 172.16.107.0
C. 172.16.208.0
D. 172.16.252.0
E. 172.16.254.0
9. [单选题]下列哪个network命令会告知此路由器开始使用IP地址为10.1.1.1、10.1.100.1和10.1.120.1的接口上的OSPF（）
A. network 10.0.0.0 255.0.0.0 area 0
B. network 10.0.0.0 0.255.255.255 area 0
C. network 10.0.0.1 0.0.0.255 area 0
D. network 10.0.0.1 0.0.255.255 area 0
10. [单选题]RIP路由协议认为“网络不可到达”的跳数是：()
A. 8
B. 16
C. 24
D. 100
