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How are link-local IPv6 addresses created?

  1. A combination of the local-link prefix FE80 and the 64-bit IPv6 identifier.

  2. They are randomly generated and then prefixed with F808.

  3. They use the device MAC address with a prefix of FF00.

  4. They are randomly generated and then prefixed with FFCC.
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A Correct answer
Explanation

Link-local IPv6 addresses are generated by combining the standard link-local prefix FE80::/10 (typically padded to 64 bits) with a 64-bit interface identifier (often derived from the MAC address via EUI-64 or randomly generated). Other options specify incorrect prefixes such as FF00 (multicast), F808, or FFCC.

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