Which statement about the IPv6 Payload Length field is true?

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Multiple Choice

Which statement about the IPv6 Payload Length field is true?

Explanation:
The Payload Length field in IPv6 specifies the length, in octets, of the IPv6 payload that follows the header. That payload includes all extension headers and the upper-layer data. It does not include the IPv6 header itself, so the total packet length on the wire is 40 bytes (the header) plus the value in Payload Length. The Next Header field indicates what type of header comes next, not its length, and the IPv6 header length is fixed at 40 bytes, not described by this field. Therefore, the correct understanding is that this field indicates the length of the payload only.

The Payload Length field in IPv6 specifies the length, in octets, of the IPv6 payload that follows the header. That payload includes all extension headers and the upper-layer data. It does not include the IPv6 header itself, so the total packet length on the wire is 40 bytes (the header) plus the value in Payload Length. The Next Header field indicates what type of header comes next, not its length, and the IPv6 header length is fixed at 40 bytes, not described by this field. Therefore, the correct understanding is that this field indicates the length of the payload only.

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