Question

5. What can you do with all-zero groups in an IPv6 address?

A) They must be removed.
B) They can be compressed with a single colon.
C) They can be compressed with a double colon.
D) They must be replaced with "0s."

Answer 1

In IPv6 addressing, all-zero groups can be compressed with a double colon. This significantly shortens the address, providing a more concise representation. Only one double colon is allowed per IPv6 address.

Step-by-step explanation:

When working with IPv6 addresses, the representation can be simplified by compressing all-zero groups. The correct answer to what you can do with all-zero groups in an IPv6 address is C) They can be compressed with a double colon. Only a single instance of a double colon is allowed in an IPv6 address, and it can represent multiple groups of consecutive zeros. This provides a much more succinct representation of the IPv6 address.

For example, an IPv6 address like 2031:0000:130F:0000:0000:09C0:876A:130B can be compressed to 2031:0:130F::09C0:876A:130B, where the double colon (::) represents the consecutive all-zero sections of the address.