Question

Consider a two-link network where Host A is connected to the router by a 1 Mbps link with 10 ms propagation delay and the router is connected to Host B by a 15 Mbps link with a 25 ms propagation delay. Host A sends a 1500-byte packet to Host B. What is the transmission delay (in ms) of the packet from Host A to the router?

Answer 1

Answer:

15ms

Explanation:

The propagation delay of sending data across the link between Host A and the router is 10ms at 1Mbps.

A 1500 byte package is equivalent to 1.5Mb, so the transmitting of this data would take;

        1.5Mb of the data transmits at = 1  1/2 seconds

with a delay of => 10ms + (10ms/2)

= 10 + 5 = 15ms.