What does the Reserved Fragment flag in the Flags field of an IPv4 header indicate? A. Whether fragmentation is allowed B. Whether fragmentation is not allowed C. The relative position of a fragment in an original packet D. Whether there are more segments following the segment
Question
What does the Reserved Fragment flag in the Flags field of an IPv4 header indicate? A. Whether fragmentation is allowed B. Whether fragmentation is not allowed C. The relative position of a fragment in an original packet D. Whether there are more segments following the segment
Solution
The Reserved Fragment flag in the Flags field of an IPv4 header indicates whether fragmentation is not allowed. This flag is set to 0 if fragmentation is allowed and to 1 if it is not. This is used to control how a packet is handled as it travels through different networks with varying maximum transmission units (MTUs). If a packet is too large for a network's MTU and the Reserved Fragment flag is set to 1, the packet will be dropped. If the flag is set to 0, the packet will be fragmented into smaller packets that can be transmitted over the network.
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