Question

What can you remove in IPv6 addresses to shorten them?

A) Leading 0s
B) Trailing 0s
C) All-zero groups
D) Hexadecimal characters

Answer 1

In IPv6 addresses, you can remove leading 0s in each block and replace a single continuous block of all-zero groups with a double colon (::) to shorten the address.

Step-by-step explanation:

To shorten IPv6 addresses, you can remove the following:

• Leading 0s in each block of a full address.
• Trailing 0s cannot be removed; instead, entire sections consisting of only 0s can sometimes be eliminated.
• A single continuous block of all-zero groups can be replaced with two colons (::).
• Hexadecimal characters must remain as they are part of the necessary notation.

For example, the address 2001:0db8:0000:0000:0000:ff00:0042:8329 can be shortened to 2001:db8::ff00:42:8329, where leading zeroes within each four-character block are dropped and the longest continuous string of blocks containing only zeroes is replaced with a double colon (::).