Discussion
Which statement(s) about IPv4 and IPv6 addresses are true?
1.An IPv6 address is 32 bits long, represented in hexidecimal.
2.An IPv6 address is 128 bits long, represented in decimal.
3.An IPv4 address is 32 bits long, represented in decimal.
4.An IPv6 address is 128 bits long, represented in hexidecimal.
Answer: C
Correct answer: 3 and 4
Statements 3 and 4 are correct: IPv4 is 32 bits written as four decimal octets, and IPv6 is 128 bits written as eight groups of four hexadecimal digits. Statement 1 gives IPv6 the length of IPv4, and statement 2 gives it the wrong notation. The move from 32 to 128 bits is a factor of \( 2^{96} \) in address space, not four.
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