CCNA考题分析验证主机联通性思科认证
文章作者 100test 发表时间 2009:07:08 02:48:46
来源 100Test.Com百考试题网
问题
Which command can verify Application Layer connectivity between 2 hosts?
A. arp
B. ping
C. telnet
D traceroute
E. plp
题目意思:以下命令当中那个是在应用层验证两个主机的联通性的命令?
Telnet tests the Application layer, ping test the Network layer.Telnet is an application used to remotely configure a device. If telnet is succesfful you know that full 7 layer stack on the sending and receiving host are configured correctly and are in working order
因为telnet命令是工作在应用层,ping命令是工作在网络层的,telnet是应用于远程控制设备的,所以如果能telnet成功的话,这就证明了两台主机或设备已经联通了,在联通性上面已经没有问题了。
该题目主要考学员命令工作的层面,和OSI七层的关系。
正确答案:C