Question

How many bits long is a hexadecimal group in an IPv6 address?

A) 8 bits
B) 16 bits
C) 32 bits
D) 64 bits

Answer 1

Each group of hexadecimal digits in an IPv6 address is 16 bits long. IPv6 addresses consist of 8 groups of four hexadecimal digits, equating to a total of 128 bits.

Step-by-step explanation:

In an IPv6 address, each hexadecimal group is 16 bits long. An IPv6 address is made up of eight groups of four hexadecimal digits, where each group represents 16 bits, or two bytes, of the address. This system enables a vast number of unique IP addresses. In hexadecimal notation, a single digit can represent 4 bits, therefore a group of 4 hexadecimal digits can represent 16 bits.