Which IP protocol family uses a 128-bit address space?

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Multiple Choice

Which IP protocol family uses a 128-bit address space?

Understanding address lengths helps explain this. The number of unique addresses a protocol can assign is set by its address size. IPv4 uses 32-bit addresses, giving about 4.3 billion possibilities. IPv6 uses 128-bit addresses, producing an enormous 2^128 possibilities. That vast space is the reason 128-bit addressing is associated with IPv6, not IPv4. So IPv6 is the correct choice.

Understanding address lengths helps explain this. The number of unique addresses a protocol can assign is set by its address size. IPv4 uses 32-bit addresses, giving about 4.3 billion possibilities. IPv6 uses 128-bit addresses, producing an enormous 2^128 possibilities. That vast space is the reason 128-bit addressing is associated with IPv6, not IPv4. So IPv6 is the correct choice.

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