Which three IPv4 header fields have no equivalent in an IPv6 header? (Choose three.)identificationversionTTLflagprotocolfragment offset

The three IPv4 header fields that have no equivalent in an IPv6 header are:

1. Identification: This field is used for uniquely identifying fragments of an original IP datagram. IPv6 does not have this field because fragmentation is handled by the source device, not by the routers along the packet's path.

2. Flags: This field is used in IPv4 to control or identify fragments. They are used to indicate the last fragment in a series or to control whether routers can fragment the packet. In IPv6, this field is not present because, as mentioned above, fragmentation is handled differently.

3. Fragment Offset: This field is used in IPv4 to indicate the position of a fragment in the original datagram. This is necessary because the fragments may arrive out of order. In IPv6, this field is not present because fragmentation is handled by the source device, not by the routers along the packet's path.