CCNA考试题库中英文翻译版及答案3

6. The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router.Which of the following statements is true concerning this command?
　　6.路由器上输入命令frame-relay map ip 10.121.16.8 102 broadcast，以下选项正确的是?

　　A. This command should be executed from the global configuration mode.

　　A.该命令应该在全局配置模式下被执行

　　B. The IP address 10.121.16.8 is the local router port used to forward data.

　　B.IP地址10.121.16.8是本地路由器用来转发数据的接口

　　C. 102 is the remote DLCI that will receive the information.

　　C.102是远端的DLCI它将接受信息。

　　D. This command is required for all Frame Relay configurations.

　　D.这个命令要求被配置为所有的帧中继配置。

　　E. The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC.

　　E.这个广播选项允许数据包，例如rip更新信息，将会被转发通过PVC.

　　Answer: E

 

7. Which type of attack is characterized by a flood of packets that are requesting a TCP connection

　　to a server?

　　7.哪种类型的攻击的特点是发大量的TCP请求连接数据包到服务器?

　　A. denial of service　　A.拒绝服务

　　B. brute force　　B.强制叠加

　　C. reconnaissance　　C.监听

　　D. Trojan horse　　D.木马

　　Answer: A

　　8. Which of the following are associated with the application layer of the OSI model? (Choose

　　two.)

　　8.以下两个选项是工作在OSI模型的应用层的?

　　A. ping　　B. Telnet

　　C. FTP　　D. TCP　　E. IP

　　Answer: BC