Question 12 1 pts 180 Mbits per packet 321 source destination 100 Mbps 100 Mbps If packets have a length of 180 Mbits, the link transmission rate of each link is 100 Mbps, what is the end-end (source-destination) transmission delay? Assume all other components of delay are negligible 3.6 sec 1.8 sec 2.25 sec 2 sec Question 13 1 pts Suppose there is a 10 Mbps microwave link between a geostationary satellite and its base station on Earth. Every minute the satellite takes a digital photo and sends it to the base station. Assume a propagation speed of 2.4 x 100 meters/sec. What is the propagation delay of the link in msec? (A geostationary satellite is 36,000 kilometers away from Earth.) Question 14 1 pts Network forwarding determines the source-destination route taken by packets. True . False Question 15 1 pts Suppose that the link bandwidth is 100 Kbps, packets have length 500 bits, and packets arrive for transmission at a rate of 100 per second What is the traffic intensity and what are the implications for average queuing delay and dropped packets? The traffic intensity is 2 and the queuing delay is very large packets will definitely be dropped. The traffic intensity is 0.5 and the queuing delay is non-negligible; some packets may be dropped, The traffic intensity is 0.2 and the queuing delay is small: some packets may be dropped. The traffic intensity is 0.05 and the queuing delay is very small, it's unlikely packets wil be dropped