Assume that the propagation speed is 2 × 108 meters/sec, and the distance between source and destination is 10,000 km.

Suppose that KJ sends 3596 back-to-back packets, with each packet composed of 14,000 bits, to TA over 5 links (shown below). Suppose that the transmission rate of each link is 70,000 bits/sec (bps). Consider the routers to be store-and-forward routers. In such a scenario, find the endto- end delay of sending all the packets to TA (i.e., the time needed for the last bit of the last packet to arrive at TA since KJ starts transmitting the first bit of the first packet). Note, consider only the transmission delay that occurs in sending packets in your analysis. Show the steps used for derivation in detail. 70,000 bps 70,000 bps 70,000 bps 70,000 bps 70,000 bps KJ Router 1 Router 2 Router 3 Router 4 ТА

- Stations in a slotted Aloha network send frames of size 2000 bits at the rate of 1 Mbps. What is the vulnerable time for this network? - Explain why collision is an issue in random access protocols but not in controlled access protocols. - In a bus CSMD network with a data rate of 10 Mbps, a collision occurs 20 μs after the first bit of the frame leaves the sending station. What should the length of the frame be so that the sender can detect the collision?

Q3.Unless specified otherwise, use the free space propagation speed of light 3x108 m/s to calculate the propagation delay. For numerical calculations, the results must show the appropriate unit. Show a complete solution for each problem in your submission. Consider a digital multimedia transmission system. Separate audio and video coders are used to encode these signals. Audio and video bits are packed in packets together and transmitted over atransmission link. Each packet is 2,000 bytes long, which includes a 48-byte header. The system generates one packet every 40 ms. Calculate the following values:a. The minimum data transmission rate required to support the above system.b. The minimum signal-to-noise ratio (SNR) in dB required to transmit the above audio and video information. Assume a 400-kHz transmission channel bandwidth is used.c. The end-to-end packet delay over a 50-km link, using answer in Part a).

Assume that 2 packets arrive simultaneously to a switch at which one other packet is halfway done being transmitted on the outbound link and two other packets are waiting to be transmitted. Each packets is of length N = 1600 bytes and the outbound link has transmission rate R = 1.28 Mbps. Assume that the queuing buffer is big enough to hold at least five packets. What is the average queuing delay for the arriving 2 packets?

6. Consider a network with some hosts. The traffic from one host to the other is provided. The question is to find the total bytes that are moving in the network from one host to the other and also for all the routes. The total bytes that are transferred for the day is as below. peter ann 1250 peter mary 910 mark mary, 1250 peter mary 450 peter andy 2924 paul peter 1218 paul helen 199 The first name is the source host, the second is the destination host and the number is the bytes that are transferred.

strictly....Do not copy anything from anywhere. i'll give downvotes then

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Suppose frames are limited to 1,500 bytes (excluding the 18 bytes of the header and the trailer) between source Host A and destination Host B. What would be the number of frames required to send an MP3 consisting of 1 million bytes (1MB)? Explain how you computed your answer.

Take two hosts, A and B, linked by a single R bps connection. Assume that both hosts are separated by meters and suppose that the propagation rate along the link is meters/sec.Host A is to send an L-bit packet to host B.A. Express the m and s propagation delay, dprop.b. Determine the transfer time in terms of L and R for the packet, dtrans.c. Ignoring processing delays and queuing delays get an end-to-end term.