200 nodes are connected to a 1,500-meter length of coaxial cable. Using some protocol, each node can transmit 50 frames/second, where the average frame length is 2,000 bits. The transmission rate at each node is 100 Mbps (where 1 Mbps = 1,000,000 bps). What is the efficiency of this protocol

Station A is connected to station B directly via the link, Station B also connected to stations C, D, E, F directly via link.

10. For a 10 Mbps data link using 12,000-bit frames, and assuming that electrical signals propagate at 2.5 x 108 m/s: a. How long does it take to introduce a single frame onto the link? b. How long does it take for the trailing edge of the frame to travel 1,620 km? c. What is the total transmission time of this frame, from start to finish?

A slotted aloha network..

You are designing the Wi-Fi for a classroom of 20 students and all students are using Wi-Fi at the same time. The protocol efficiency is 40% and the channel utilization is 80%. Each students uses a throughput of 2 Mbps. What is the minimum PHY rate requirement for the radio in Mbps?

A common measure of transmission for digital data is the baud rate, defined as the number of bits transmitted per second. Generally, transmission is accomplished in packets consisting of a start bit, a byte (8 bits) of information, and a stop bit.What would the time be at 3000K baud, a representative medium speed of a phone DSL (Digital Subscriber Line) connection?

Now suppose there is only one link between source and destination, and there are 10 FDM channels in the link. The MP3 file is sent over one of the channels. What is the end-to-end delay?

A signal in a network has a propagation velocity of 1.77x10" m/s and a delay of 4.3 us introduced by each repeater. If the round trip delay for two computers at either end of a link that includes three repeaters is 52.92 us, calculate the length of this link? Express your answer in kilometers.

If the bandwidth of the network is 10Mbps, which is used to transmit the data between two nodes which are 200 meters apart with the velocity of 2 X 108 m/s. Calculate the minimum size of frame (in Bits) to acquire the channel

What is the length of a bit in a channel with a propagation speed of 2 x 108 m/s if the channel bandwidth is 1.1 Mbps? 2. 10 Mbps? 3. 100 Mbps?