Which option is a valid IPv6 address?
A.
2001:0000:130F::099a::12a
B.
2002:7654:A1AD:61:81AF:CCC1
C.
FEC0:ABCD:WXYZ:0067::2A4
D.
2004:1:25A4:886F::1
Explanation:
An IPv6 address is represented as eight groups of four hexadecimal digits, each group
representing 16 bits (two octets). The groups are separated by colons (:). An example of an IPv6
address is 2001:0db8:85a3:0000:0000:8a2e:0370:7334. The leading 0’s in a group can be
collapsed using ::, but this can only be done once in an IP address.