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Suppose there are three routers between a source and destination. Ignore fragmentation. An IP datagram sent from the source to the destination will travel over how many interfaces? How many forwarding tables will be indexed to move the datagram from the source to destination?

A. 8, 4
B. 6, 3
C. 8, 3
D. 6,4


The Answer is given as C) 
How We have 8 interfaces ?
I am only able to figure out 4.

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