While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?（）A、The data link layerB、The application layerC、The access layerD、The session layerE、The network layer
While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?（）
- A、The data link layer
- B、The application layer
- C、The access layer
- D、The session layer
- E、The network layer
相关考题：
While troubleshooting a network problem,a technician discovers that the current copy of the Cisco IOS is outdated and needs to be updated.Which of the following commands would the technician issue to replace the Cisco router IOS with the newer version?（）A、Router#copy tftp flashB、Router(config)#restore flashC、Router(config)#repair flashD、Router#copy flash runE、Routercopy start flashF、Router#copy start flash
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