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问题

While troubleshooting a connectivity issue from a PC you obtain the following information:

Local PC IP address: 190.0.3.35/24

Default Gateway: 190.0.3.1

Remote Server: 190.0.5.250/24

You then conduct the following tests from the local PC:

Ping 127.0.0.1 - Unsuccessful

Ping 190.0.3.35 - Successful

Ping 190.0.3.1 - Unsuccessful

Ping 190.0.5.250 – Unsuccessful

What is the underlying cause of this problem?

A.TCP/IP not correctly installed

B.Local physical layer problem

C.NIC not functioning

D.Remote physical layer problem

E.None of the above

参考答案
正确答案:A
解析:Explanation:
Every Windows based PC uses the 127.0.0.1 as the local loopback IP address. Every PC will respond to this local IP address if the TCP/IP stack is correctly installed and running on the machine. If you cannot ping the loopback address of 127.0.0.1, then something is wrong with the TCP/IP protocol stack.
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