Assume that source S and destination D are connected through two intermediate routerslabeled R. Determine how many times each packet has to visit the network layer and the datalink layer during a transmission from S to D.a)Network layer andndash; 4 times and Data link layer-4 timesb)Network layer andndash; 4 times and Data link layer-3 timesc)Network layer andndash; 4 times and Data link layer-6 timesd)Network layer andndash; 2 times and Data link layer-6 timesCorrect answer is option 'C'. Can you explain this answer?

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a)
Network layer – 4 times and Data link layer-4 times
b)
Network layer – 4 times and Data link layer-3 times
c)
Network layer – 4 times and Data link layer-6 times
d)
Network layer – 2 times and Data link layer-6 times

Correct answer is option 'C'. Can you explain this answer?

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Assume that source S and destination D are connected through two inter...

From above given diagram, its early visible that packet will visit network layer 4 times, once
at each node [S, R, R, D] and packet will visit Data Link layer 6 times. One time at S and one
time at D, then two times for each intermediate router R as data link layer is used for link to
link communication.
Once at packet reaches R and goes up from physical –DL-Network and second time when
packet coming out of router in order Network – DL- Physical

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Assume that source S and destination D are connected through two intermediate routerslabeled R. Determine how many times each packet has to visit the network layer and the datalink layer during a transmission from S to D.a)Network layer – 4 times and Data link layer-4 timesb)Network layer – 4 times and Data link layer-3 timesc)Network layer – 4 times and Data link layer-6 timesd)Network layer – 2 times and Data link layer-6 timesCorrect answer is option 'C'. Can you explain this answer?

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