Please give an answer and give a short explanation for each. Panda (one of your

Question

Please give an answer and give a short explanation for each.

Panda (one of your esteemed TAs) sends a 100 byte packet from Berkeley to UCLA. Assume
that Berkeley is 600km from UCLA and that the propagation speed is 300,000km/s.
4) What is the propagation delay (in milliseconds)
a) 1ms
b) 2ms
c) 3ms
d) 8ms
e) 30ms

5) Suppose the first link between Berkeley and Los Angeles is 100Kbps, and all other links are
much faster than 100Kbps. What is the transmission delay?
a) 1ms
b) 2ms
c) 4ms
d) 8ms
e) 16ms

6) Panda noticed that the transmission of the packet was timestamped by his computer as 1:05:00
PM. The destination server at UCLA records it as arriving at 1:00:00 PM on the same day.
Which of the following is the most plausible explanation for this?
a) Panda

Explanation / Answer

d) 8ms c) 4ms d) The receiver and sender clocks are not synchronized b) 1:05:00 PM + 8ms + 2ms + 8ms + 2ms

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