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(a) A wants to send a 500 byte packet to D through C. B is supposed to follow the store-and forward model, that is, C will receive the whole packet from A and then start transmitting the packet to D. What is the end-to-end delay (Latency) seen by the packet? (b) Now, A wants to send a 5 MB file to D in chunks of 500 byte packets. To prevent any packet loss, when A sends a 500 byte packet to D, D responds with a 50 byte packet to A (through C) acknowledging that it has successfully received the packet. Only after receiving the acknowledgement does A send the next 500 byte packet. Assuming no losses, how long will it take A to send the file to D.

(a) A wants to send a 500 byte packet to D through C. B is supposed to follow the store-and forward model, that is, C will receive the whole packet from A and then start transmitting the packet to D. What is the end-to-end delay (Latency) seen by the packet? (b) Now, A wants to send a 5 MB file to D in chunks of 500 byte packets. To prevent any packet loss, when A sends a 500 byte packet to D, D responds with a 50 byte packet to A (through C) acknowledging that it has successfully received the packet. Only after receiving the acknowledgement does A send the next 500 byte packet. Assuming no losses, how long will it take A to send the file to D.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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(a) A wants to send a 500 byte packet to D through C. B is supposed to follow the store-and forward model, that is, C will receive the whole packet from A and then start transmitting the packet to D. What is the end-to-end delay (Latency) seen by the packet? (b) Now, A wants to send a 5 MB file to D in chunks of 500 byte packets. To prevent any packet loss, when A sends a 500 byte packet to D, D responds with a 50 byte packet to A (through C) acknowledging that it has successfully received the packet. Only after receiving the acknowledgement does A send the next 500 byte packet. Assuming no losses, how long will it take A to send the file to D.
Transcribed Image Text:(a) A wants to send a 500 byte packet to D through C. B is supposed to follow the store-and forward model, that is, C will receive the whole packet from A and then start transmitting the packet to D. What is the end-to-end delay (Latency) seen by the packet? (b) Now, A wants to send a 5 MB file to D in chunks of 500 byte packets. To prevent any packet loss, when A sends a 500 byte packet to D, D responds with a 50 byte packet to A (through C) acknowledging that it has successfully received the packet. Only after receiving the acknowledgement does A send the next 500 byte packet. Assuming no losses, how long will it take A to send the file to D.
400KM B 5 Mbps 300Km 14 Mbps 20oOKm A 12 Mbps Assume in the above figure data travels through the links at the speed of light which is 3 * 105 Km/sec. Take processing delay= queuing delay =0.
Transcribed Image Text:400KM B 5 Mbps 300Km 14 Mbps 20oOKm A 12 Mbps Assume in the above figure data travels through the links at the speed of light which is 3 * 105 Km/sec. Take processing delay= queuing delay =0.
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