Question

question 1
what is the valid most compressed format possible of the ipv6 address 2001:0db8:0000:ab00:0000:0000:0000:1234?
2001:db8:0:ab::1234
2001:db8:0:ab:0:1234
2001:db8:0:ab00::1234
2001:db8::ab00::1234

Explanation:

In IPv6 address compression, leading - zeros in each 16 - bit group can be omitted. And a single contiguous sequence of one or more 16 - bit groups with all zeros can be replaced by a double - colon (::). In the given address 2001:0DB8:0000:AB00:0000:0000:0000:1234, the sequence of four all - zero 16 - bit groups can be replaced by :: and leading zeros in other groups can be removed.

Answer:

A. 2001:DB8:0:AB::1234