Final answer:
Zero compression is used to reduce the size of an IP address by replacing sequences of zeros with two colons in IPv6 addressing. Therefore , the correct answer options is A)
Step-by-step explanation:
In IPv6 addressing, the abbreviation technique called zero compression can be used to reduce the size of an IP address by replacing sequences of zeros with two colons. This helps to make the address more concise and easier to read. For example, instead of writing 2001:0db8:0000:0000:0000:0000:0000:1234, we can write 2001:0db8::1234.
This technique is used when there are consecutive blocks of zeros in the IP address. It can only be used once within an address. The purpose is to save space and simplify the representation of the address.