As a CCNA candidate, you must have a firm understanding of the IPv6 address structure. Refer to IPv6 address, could you tell me how many bits are included in each filed?

24 bits would correspond to six hexadecimal digits, which is not the standard length of an IPv6 address field.

4 bits represents a single hexadecimal digit, not an entire field in an IPv6 address.

3 bits is not a standard grouping for IPv6 address representation.

An IPv6 address is 128 bits long and is typically written as eight groups of four hexadecimal digits, separated by colons; each hexadecimal digit represents 4 bits, so a group of four hexadecimal digits represents 4 * 4 = 16 bits.