Question

The IP address 127.0.0.1 is known as the loopback address. Which address range is reserved for loopback in IPv4 and what is its primary purpose?

A 127.0.0.0/8 — used for testing network software without actual hardware
B 192.168.0.0/16 — used for private home networks
C 10.0.0.0/8 — used for large corporate internal networks
D 169.254.0.0/16 — used when DHCP server is unavailable
E 172.16.0.0/12 — used for medium-sized private networks
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