What notation demonstrates zero compression for IPv6?

In IPv6 addressing, zero compression allows for the simplification of an address by replacing contiguous sections of zeroes with a double colon (::). This makes it easier to read and write addresses that may otherwise be long and unwieldy.

In the example provided, the address "10AB::3:0:1234:5678" employs this zero compression notation. Here, the double colon replaces the contiguous sections of zeroes, which can appear anywhere in the address. This means that parts of the address that would normally be represented as several blocks of zeroes are condensed to just the double colon, indicating that these sections are filled with zeros.

Each of the other choices either represents a traditional IPv4 address format, which doesn't use zero compression, or is an IPv6 address without any application of the compression technique. Thus, “10AB::3:0:1234:5678” is the clear example of how zero compression is utilized in IPv6 addressing.