How is an IPv6 address written and displayed?
What will be an ideal response?
ANSWER: IPv6 addresses are written and displayed as follows:
* An IPv6 address has 128 bits that are written as eight blocks (also called quartets) of hexadecimal numbers separated by colons, like this: 2001:0000:0B80:0000:0000:00D3:9C5A:00CC.
* Each block is 16 bits. For example, the first block in the preceding IP address is the hexadecimal number 2001, which can be written as 0010 0000 0000 0001 in binary.
* Leading zeroes in a four-character hex block can be eliminated. This means our sample IP address can be written as 2001:0000:B80:0000:0000:D3:9C5A:CC.
* If blocks contain all zeroes, they can be eliminated and replaced by double colons (::). To avoid confusion, only one set of double colons is used in an IP address. This means our sample IP address can be written two ways: 2001::B80:0000:0000:D3:9C5A:CC or 2001:0000:B80::D3:9C5A:CC
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