In IPv4 packet fragmentation, if an original datagram is fragmented into chunks, which field in the header ensures fragments from different packets are not mixed together during reassembly?
IPv4 reassembly relies on both the Identification field to associate fragments with the original datagram and the Fragment Offset to place each fragment correctly. Therefore A and B are correct.
Where does the reassembly of fragmented IPv4 datagrams take place in standard Internet routing?
Fragments can take independent paths to the destination. Routers do not reassemble fragments; only the destination host reassembles them using Identification and Fragment Offset.
What type of address is IPv4 224.0.0.1 designated as?
0.0.1 is the reserved permanent multicast address targeting all hosts and routers on the local subnet.
Which IPv6 address type replaces the legacy broadcast addressing mechanism of IPv4?
IPv6 completely eliminates broadcast addressing. Broadcast functions are replaced by scoped Multicast addresses (e.g., ff02::1 for all-nodes on link).
In an IPv6 header, which field corresponds directly to the IPv4 Time to Live (TTL) field?
IPv6 uses the Hop Limit field as the counterpart of IPv4 TTL. Hop Limit is not listed in A-C, so None of the above is correct.