Question

20. Assume that source S and destination D are con-
nected through two intermediate routers labeled R.
Determine how many times each packet has to visit
the network layer and the data link layer during a
transmission from S to D.
[2013]
S
R
R
D
(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​

Answer 1

Answer:

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Explanation:

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