Can someone please explain to me this question? ASAP??!!! 8. Consider the throughput example shown in the lecture.Now suppose that there are M client-server pairs rather than 3. Denote Rs, Rc, and R for the rates of the server links, client links, and network link. Assume all other links have abundant capacity and that there is no other traffic in the network besides the traffic generated by the M client-server pairs. Derive a general expression for throughput in terms of Rs, Rc, R, and M.

Can someone please explain to me this question? ASAP??!!! 8. Consider the throughput example shown in the lecture.Now suppose that there are M client-server pairs rather than 3. Denote Rs, Rc, and R for the rates of the server links, client links, and network link. Assume all other links have abundant capacity and that there is no other traffic in the network besides the traffic generated by the M client-server pairs. Derive a general expression for throughput in terms of Rs, Rc, R, and M.

Principles of Information Security (MindTap Course List)

6th Edition

ISBN:9781337102063

Author:Michael E. Whitman, Herbert J. Mattord

Publisher:Michael E. Whitman, Herbert J. Mattord

Chapter6: Security Technology: Access Controls, Firewalls, And Vpns

Section: Chapter Questions

Problem 2RQ

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Consider the throughput example presented in the figure below. Now suppose that there are 4 client-server pairs. Denote Rs1, Rs2, Rs3,Rs4 ,Rc1 ,Rc2 ,Rc3, Rc4 and R for the rates of the server links, client links, and network link. Assume all other links have abundant capacity and that there is no other traffic in the network besides the traffic generated by the 4 client-server pairs. Question:derive a general expression for throughput for the Client Server pair 1, in terms of Rsi, ,Rciand R.
Consider the throughput example presented in the figure below. Now suppose that there are 4 client-server pairs. Denote RS1, RS2, RS3, RS4, RC1, RC2, RC3, RC4 and R for the rates of the server links, client links, and network link. Assume all other links have abundant capacity and that there is no other traffic in the network besides the traffic generated by the 4 client-server pairs. Question:Assume that for i = {1,2,3,4}, RSi = RCi = R. Furthermore, assume that all routers have infinite buffer capacity, meaning that packets are never dropped and are eventually forwarded by a router. What is the throughput for the Client Server pair 1? What is the throughput for Client Server pair 3?
Consider the throughput example. Now suppose that there are 4 client-server pairs. Denote Rs1, Rs2, Rs3,Rs4 ,Rc1 ,Rc2 ,Rc3, Rc4 and R for the rates of the server links, client links, and network link. Assume all other links have abundant capacity and that there is no other traffic in the network besides the traffic generated by the 4 client-server pairs. Question: Assume that for i = {1,2,3,4}, Rsi = Rci = R , assume that all routers have infinite buffercapacity, meaning that packets are never dropped and are eventually forwarded by a router. Whatis the throughput for the Client Server pair 1? What is the throughput for Client Server pair 3?
3. Calculating throughput. Given the adjacent diagram illustrating client server pairs with Rs, Rc, and R are the rates for the server links, client links and network link. Assume all other links have abundant capacity and there is no other traffic in the network besides the traffic generated by M client-server pairs. a. If Rs is 35 Mbps and Rc is 25 Mbps, R is 120 Mbps, and there are 5 concurrent users (i.e., M=5), what is the maximum throughput from client to server? Explain your answer. b. If Rs is 15 Mbps and Rc is 25 Mbps and R is 100 Mbps, what is the minimum value for M to make the bottleneck occur at R instead of either R, or Rc? Round M up to the nearest integer. Explain your answer. c. If Rs is 16 Mbps and Rc is 12 Mbps and R is 28 Mbps, what is the minimum value for M to make the bottleneck occur at R instead of either R, or Rc? Round M up to the nearest integer. Explain your answer. R₁ AHL R$ Rc
Consider the throughput example presented in the figure below. Now suppose that there are 4 client-server pairs. Denote Rs1, Rs2, Rs3, Rs4,Rc1,Rc2, Rc3, Rc4 and R for the rates of the server links, client links, and network link. Assume all other links have abundant capacity and that there is no other traffic in the network besides the traffic generated by the 4 client-server pairs. For the following questions always provide an explanation of how you came up with your reply. Question : Assume that for i = {1,2,3}, Rsi = Rci = r ,that Rs4 = r, Rc4 = 4r and that R = 100r. Furthermore, assume that all routers have infinite buffer capacity, meaning that packets are never dropped and are eventually forwarded by a router. What is the throughput for the Client Server pair 2? What is the throughput for Client Server pair 4?
Question 5: Suppose you attach a network monitor to observe the sequence of frames that travel over a link from sender A to receiver B. The problem is to deduce what protocols, if any, could have generated the observed sequence. The following diagrams depict a flow of frames, with their corresponding sequence numbers, from the sender (A). There may be traffic from B to A, which is not depicted in the diagram. A gap between adjacent frames implies passage of time with no transmission from the sender. Note that the x-axis is time, and not space. Justify your answer. A A A ● ● ● ● 1 5 ● 3 5 0 ● 0 0 1 1 1 ● Go-Back-N ● Selective Repeat 1 0 5 0 c) For Diagram 3, the protocol is not: Stop-and-Wait Time Diagram 1 2 Time a) For Diagram 1, the most likely protocol being used is: Stop-and-Wait ● Go-Back-N (if Go-Back-N, give the window size) Selective Repeat (if Selective Repeat, give the window size) Diagram 2 Time 3 Diagram 3 1 Time b) For Diagram 2, the most likely protocol being used is:…
Consider a local network with a 1 Gbps access link to the Internet. Hosts on this network are accessing resources with an average size of 2 MB from a distant server at an average rate of 50 requests per second. a. What is the link utilization of the access link to the internet? b. Suppose these requests were to go through a caching proxy server. What would the link utilization to the internet be if half of all requests were served from the cache of the proxy server? с. resources never being needed for example.) Would this still provide any advantages to the end user? Would there be any disadvantages to the end user? Suppose the proxy server could not serve any content from cache (due to the same
a. Suppose N packets arrive simultaneously to a link at which no packets are currently being transmitted or queued. Each packet is of length L and the link has transmission rate R. What is the average queuing delay for the N packets? b. Now suppose that N such packets arrive to the link every LN/R seconds. What is the average queuing delay of a packet?
2. Now suppose there are two links between source and destination, with one router connecting the two links. Each link is 5,000 km long. Again suppose the MP3 file is sent as one packet. Suppose there is no congestion, so that the packet is transmitted onto the second link as soon as the router receives the entire packet. What is the end-to-end delay?
P5. Consider a datagram network using 32-bit host addresses. Suppose a router has four links, numbered 0 through 3, and packets are to be forwarded to the link interfaces as follows: (refer to first image) a. Provide a forwarding table that has five entries, uses longest prefix matching, and forwards packets to the correct link interfaces. b. Describe how your forwarding table determines the appropriate link interface for datagrams with destination addresses: (refer to second image)
A single connection has the capability to transmit multiple packets between hosts. This inquiry seeks to elucidate the concept of freight processing times. Is there a fixed duration for one delay while the other can be modified?
Use again the network architecture provided in the figure above, were Rs, Rc and Ri for i = {1,2,3,4}, the transmission rates of the server link, client link and intermediate network links. Consider a message that is 60 · 106 bits long that is to be sent from client to server. Ignore propagation, queuing, and processing delays. c.How long does it take to move the file from source host to destination host when message segmentation is used and both path R1, R2 and path R3, R4 are used? How many packages should be routed from path R1, R2 and how many from path R3, R4 in order to maximize the use of the network? d.What is the end to end throughput if path R1, R2 is used, and what if path R3, R4 is used? What is the total throughput from client to server (if both paths are being used at the same time)?