3. Hosts A and B are connected to each other via router R. The bandwidth (i.e. transmission rate ) from A to R is 10Mbps, and the bandwidth from R to B is 5Mbps. The oneway propagation delay of each link is 22ms. Assume host A sends a 30KB file to host B.

a- Assume the file is divided into two packets, p1 and p2, where p1 has a length of 10KB, and assume the packets are sent back-to-back. What is the difference between the arrival times of the first and the second packet at host B?

b- Does the throughput increase or decrease if we divide the file into smaller packets? Why?

PLEASE explain all numbers and where you derive them from. Thanks.