Networking Concepts第 23 / 100 题
Which address is reserved as the IPv4 loopback used to test the local TCP/IP stack?
a.192.168.0.1
b.10.0.0.1
c.127.0.0.1
d.255.255.255.255
解析
127.0.0.1 is the loopback address that lets a host test its own TCP/IP stack without touching the physical network. The entire 127.0.0.0/8 block is reserved for loopback. Pinging it confirms the local protocol stack is functioning.
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