Alternative Notation for IPv6 Address

C

The alternative notation for IPv6 address is called "IPv6 compressed address notation" or "IPv6 address shorthand notation." It is used to make the IPv6 address shorter and easier to read by compressing consecutive blocks of zeros into a double colon "::".

To compress consecutive blocks of zeros, you can remove one or more sets of four zeros from the middle of the address and replace them with a double colon. However, you can only use the double colon once in an IPv6 address, and it must be used to compress consecutive blocks of zeros.

Using this notation, we can represent the given IPv6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72 in the alternative notation as:

C. B514:82C3::0029:EC7A:0:EC72

Here, we have compressed the two blocks of consecutive zeros (0000:0000) between the blocks 82C3 and 0029 with a double colon "::".

Option A (B514:82C3:0029::EC7A:0000:EC72) and option D (B514:82C3::0029:EC7A:EC72) both use the double colon, but they do not compress consecutive blocks of zeros as required by the IPv6 address shorthand notation. Option B (B514:82C3:0029:EC7A:EC72) does not use the shorthand notation at all and does not represent the given IPv6 address correctly.