试题详情
- 单项选择题An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm（）。
A、The PC has connectivity with a local host.
B、The PC has connectivity with a Layer 3 device.
C、The PC has a default gateway correctly configured.
D、The PC has connectivity up to Layer 5 of the OSI model.
E、The PC has the TCP/IP protocol stack correctly installed.
- E
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