Which option is a valid IPv6 address?

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

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6 thoughts on “Which option is a valid IPv6 address?

  1. D is the only correct answer.

    A has double colons twice which is not allowed
    B only has 6 sets rather than 8 (and no double colon to fill in the remaining)
    C has non-valid hex characters (WXYZ)

    1. Because you can only have one set of Double Colons in an Address so not to occur confusion.

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