ISRO-DEC2017-33

Question

Assume that Source $S$ and Destination $D$ are connected through an intermediate router $R.$
How many times a packet has to visit the network layer and data link layer during a transmission from $S$ to $D$ ?

• A. Network layer$-4$ times, Data link layer$-4$ times
• B. Network layer$-4$ times, Data link layer$-6$ times
• C. Network layer$-2$ times, Data link layer$-4$ times
• D. Network layer$-3$ times, Data link layer$-4$ times

Answer 1

The connection asked in the question is simply illustrated as in the picture

Answer is quite clear!

D) Network layer−3− times, Data link layer−4− times

Answer 2

Hence, Network layer- 3 times, Data Link Layer - 4 times.

Option D

Comments

similar ques:

https://gateoverflow.in/1436/gate2013_14