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An IP router with a Maximum Transmission Unit (MTU) of 1500 bytes has received an IP packet of size 4404 bytes with an IP header of length 20 bytes. The values of the relevant fields in the header of the third IP fragment generated by the router for this packet are...........

 for this kind of q what we use for finding number of fragments?

bcs many time  ...generally i used ceil(data size without header/MTU with header ) but 1-2 times i got wrong number of fragments ,that time they used

 ceil( data without header /MTU without header)       and once they used

 ceil( data with header /MTU with header ) 

its makes a difference of 1 packets bcs of ceil . so avoid this mistake which i used ?

ceil(data size without header/MTU with header ) this is right way of finding number of fragment? right?

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