Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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**Maximum end-end throughput**

Consider the scenario shown below, with 10 different servers (four shown) connected to 10 different clients over ten three-hop paths. The pairs share a common middle hop with a transmission capacity of \(R = 200 \text{ Mbps}\). Each link from a server has to the shared link has a transmission capacity of \(R_s = 25 \text{ Mbps}\). Each link from the shared middle link to a client has a transmission capacity of \(R_c = 50 \text{ Mbps}\).

![Diagram showing 10 servers and 10 clients, connected through a shared middle link.](https://www.example.com/network-diagram.png)

**Diagram Explanation:**
- The image shows a network with a central component (the "middle hop") connected to various servers and clients.
- Servers (Server-1 to Server-10) are connected to this middle hop, each with a link capacity of \(R_s = 25 \text{ Mbps}\).
- From the middle hop, links extend to each client (Host-1 to Host-10), with these links having a capacity of \(R_c = 50 \text{ Mbps}\).
- The middle hop itself has an aggregate transmission capacity of \(R = 200 \text{ Mbps}\), shared among all server-client pairs.

**Question:**
What is the maximum achievable end-end throughput (in Mbps, give an integer value) for each of the ten client-to-server pairs, assuming that the middle link is fairly shared and all servers are trying to send at their maximum rate?

**Answer Choices:**
- 275 Mbps
- 200 Mbps
- 20 Mbps
- 25 Mbps
- 50 Mbps

To determine the maximum achievable end-to-end throughput for each client-to-server pair, consider the bottleneck in the system:
- The shared middle hop with a capacity of \(R = 200 \text{ Mbps}\) is the limiting factor, as it's shared among all 10 pairs.
- If this total capacity is evenly divided among 10 pairs, each pair would get \(\frac{200 \text{ Mbps}}{10} = 20 \text{ Mbps}\).

Therefore, the correct answer is:

- 20 Mbps
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Transcribed Image Text:**Maximum end-end throughput** Consider the scenario shown below, with 10 different servers (four shown) connected to 10 different clients over ten three-hop paths. The pairs share a common middle hop with a transmission capacity of \(R = 200 \text{ Mbps}\). Each link from a server has to the shared link has a transmission capacity of \(R_s = 25 \text{ Mbps}\). Each link from the shared middle link to a client has a transmission capacity of \(R_c = 50 \text{ Mbps}\). ![Diagram showing 10 servers and 10 clients, connected through a shared middle link.](https://www.example.com/network-diagram.png) **Diagram Explanation:** - The image shows a network with a central component (the "middle hop") connected to various servers and clients. - Servers (Server-1 to Server-10) are connected to this middle hop, each with a link capacity of \(R_s = 25 \text{ Mbps}\). - From the middle hop, links extend to each client (Host-1 to Host-10), with these links having a capacity of \(R_c = 50 \text{ Mbps}\). - The middle hop itself has an aggregate transmission capacity of \(R = 200 \text{ Mbps}\), shared among all server-client pairs. **Question:** What is the maximum achievable end-end throughput (in Mbps, give an integer value) for each of the ten client-to-server pairs, assuming that the middle link is fairly shared and all servers are trying to send at their maximum rate? **Answer Choices:** - 275 Mbps - 200 Mbps - 20 Mbps - 25 Mbps - 50 Mbps To determine the maximum achievable end-to-end throughput for each client-to-server pair, consider the bottleneck in the system: - The shared middle hop with a capacity of \(R = 200 \text{ Mbps}\) is the limiting factor, as it's shared among all 10 pairs. - If this total capacity is evenly divided among 10 pairs, each pair would get \(\frac{200 \text{ Mbps}}{10} = 20 \text{ Mbps}\). Therefore, the correct answer is: - 20 Mbps
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