0 points: Alice wants to send Bob a single packet of 200 bits of data across a packet-switched network using the datagram approach. If the path that's created by the network is 4000 meters long, has 9 switches (10 hops), has propagation factor 2/3, and bit rate of 200 Mbps. Considering only propagation time and transmission time, how long does it take to send the message if the data rate across each switch is the same? (Hint: propagation factor means the signal travels along that connection that factor of the speed of light, 3x10^8m/s.)

100 points: Alice wants to send Bob a single packet of 500 bits of data across a packet-switched network using the datagram approach. If the path that's created by the network is 1000 meters long, has 4 switches (5 hops), has propagation factor 1/3, and bit rate of 100 Mbps. Considering only propagation time and transmission time, how long does it take to send the message if the data rate across each switch is the same?

0 points: Alice wants to send Bob a single packet of 200 bits of data across a packet-switched network using the virtual circuit approach. If the path that's created by the network is 4000 meters long, has 9 switches (10 hops), has propagation factor 2/3, and bit rate of 200 Mbps. Considering only propagation time and transmission time, how long does it take to send the message if the data rate across each switch is the same? (Do not include the teardown phase in your calculation.)

100 points: Alice wants to send Bob a single packet of 100 bits of data across a packet-switched network using the virtual circuit approach. If the path that's created by the network is 10000 meters long, has 3 switches (4 hops), has propagation factor 1/3, and bit rate of 500 Mbps. Considering only propagation time and transmission time, how long does it take to send the message if the data rate across each switch is the same? (Do not include the teardown phase in your calculation.)