An organization needs to assign IP addresses to devices on its internal network while avoiding conflicts with public internet addresses. Which of the following IPv4 address ranges can it use?
127.0.0.0 - 127.255.255.255
172.16.0.0 - 172.31.255.255
224.0.0.0 - 239.255.255.255
8.0.0.0 - 8.255.255.255
The IPv4 address range 172.16.0.0 to 172.31.255.255 is designated for private use within internal networks per RFC 1918. This range is not routable on the public internet, preventing address conflicts. The other options are either public IP address ranges or serve special purposes: 8.0.0.0 to 8.255.255.255 is a public range, 169.254.0.0 to 169.254.255.255 is reserved for link-local addresses (used when a device cannot obtain an IP address), 127.0.0.0 to 127.255.255.255 is range for localhost network, and 224.0.0.0 to 239.255.255.255 is reserved for multicast addressing.
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