Explain how the maximum-flow problem for a network with several sources and sinks can be transformed into the same problem for a network with a single source and a single sink.
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Explain how the maximum-flow problem for a network with several sources and sinks can be transformed into the same problem for a network with a single source and a single sink.
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- In order for a network to function properly, what are the three conditions that must be met? Let's dissect them one by one and see how they stack up.Give one potential disadvantage when Nagle's algorithm is used on a badly congested network.Show that if any number of incoming arcs will be added to the source node, the maximum flow value is unchanged. Is it true that if the capacity of every arc in a network is a multiple of A, then in every maximum flow, each arc flow will be a multiple of A? Explain it.
- When a network satisfies what three conditions, can it be said to have achieved its desired goals? Allow me to dissect each one separately.Think about a maximum flow network where a node other than the source is arc-free. Can this node be removed without reducing the maximum flow rate in any way? Can any node be removed except the sink node without the resulting arc flowing somewhere else?A maximum flow network may have a node other than the source node that does not receive arc from the outgoing flow, as an example. Is it possible to remove this node without having any impact on the maximum flow? Are there any more nodes that may be deleted without causing an arc to be sent out?
- Consider Distance Vector Routing for the following three-node network where the link labels indicate the associated links costs and the nodes are marked as x, y, and z. Derive and explain how many iterations are needed to stabilize the cost from z to x, when the cost of link (y,x) changes from 7 to 100Q4: Draw a graph for TCP congestion control for both a) TCP Tahoe b) TCP Reno based on the following information. Also show SS, AI and MD phases on the graph. At round 1 CWND =1 MSS Initial ssthresh =Infinity Timeout = At round 7 3 Duplicate ACK = At round 15 3 Duplicate ACK = At round 22 Add X round after 22, where X is 1IN PYTHON Given the following six-node wide area network for which the numbers attached to the links are a measure of the “delay” in using that link (e.g., some lines could be more heavily used than others and therefore have a longer wait time), answer the following question. What is the shortest path from node A to node D, where shortest path is defined as the path with the smallest sum of the delays on each individual link? Explain exactly how you went about finding that path.
- Prim's MST approach has the potential to be used to a weighted real-world network as it is now being built.Consider the network shown below. Using Bellman-Ford algorithm, and showing your work using a table similar to the one in the lectures, compute the distance table entries in node z. Assume that each node initially knows the costs to its neighbors and show the steps of your distance table calculation at node z.Write a report that explains link-state and distance-vector routing algorithms.The report should include the following: 1-A detailed explanation for both algorithms 2- A detailed example for each one 3- List of advantages and disadvantages for each one