Which statement is true?
A.
An IPv6 address is 64 bits long and is represented as hexadecimal characters.
B.
An IPv6 address is 32 bits long and is represented as decimal digits.
C.
An IPv6 address is 128 bits long and is represented as decimal digits.
D.
An IPv6 address is 128 bits long and is represented as hexadecimal characters.
hexadecimal (also base 16, or hex) is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or alternatively a, b, c, d, e, f) to represent values ten to fifteen