IPv6 Address Fields | Exam 200-125 | Cisco Certified Network Associate Exam

IPv6 Address Fields

Prev Question Next Question

Question

How many bits are contained in each field of an IPv6 address?

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

D

The correct answer is none of the above. Each field in an IPv6 address contains 16 bits, which means that an IPv6 address contains a total of 128 bits.

IPv6 (Internet Protocol version 6) is the most recent version of the Internet Protocol, designed to replace IPv4. While IPv4 addresses are 32-bit addresses (divided into four octets of 8 bits each), IPv6 addresses are 128-bit addresses, and they are represented as eight groups of four hexadecimal digits, separated by colons.

For example, an IPv6 address might look like this: 2001:0db8:85a3:0000:0000:8a2e:0370:7334

Each group of four hexadecimal digits represents 16 bits of the address. So, in this example, there are eight groups of 16 bits, for a total of 128 bits.

To summarize, each field of an IPv6 address contains 16 bits, and an IPv6 address contains a total of 128 bits.