In: Computer Science
1. Find the propagation delay for a signal traversing the following networks at the speed of light in cable (2.3 × 108 meter/second).
(a) metropolitan area, 100 km
(b) continent, 5000 km
2. How many (i.e. maximum) bits are in transit during the/a propagation delay (assuming the pipe is full) in the case (a) of Question 1 if bits are entering the network at the following transmission speeds:
(a) 1 Megabits/second
(b) 100 Megabits/second
(c) 10 Gigabits/second
3. In the case (b) of Question 1 and Question 2, how long does it take to send an L-bit file in the following cases:
(a) L = 10^3
(b) L = 10^6
(c) L = 10^9