Question

question 10
what is the most compressed representation of the ipv6 address 2001:0db8:0000:abcd:0000:0000:0000:0001?
2001:0db8:0000:abcd::1
2001:db8::abcd:0:1
2001:db8:0:abcd::1
2001:0db8:abcd::1
2001:0db8:abcd:0001

Explanation:

Step1: Recall IPv6 compression rules

In IPv6, leading zeros in a 16 - bit group can be omitted. Also, one or more consecutive groups of all - zero 16 - bit values can be replaced with a double colon "::". But only one double - colon can be used in an IPv6 address to avoid ambiguity.

Step2: Analyze the given address 2001:0db8:0000:abcd:0000:0000:0000:0001

Omit the leading zeros in the second group (0db8 becomes db8), and replace the consecutive four groups of all - zero values (0000:0000:0000:0000) with "::".

Answer:

2001:db8:0:abcd::1

So the correct option is 2001:db8:0:abcd::1.