Question: Suppose that a data packet is to be sent through the computer network of 4 nodes, from A to G. It is possible that some

  1. Suppose that a data packet is to be sent through the computer network of 4 nodes, from A to G. It is possible that some nodes are down at the time. The data packet must be sent through as few nodes as possible, but must not be sent through a node that is down.

a. What is the shortest route for the data packet?

  1. when no nodes are down;
  2. when nodes B and D are down;
  3. when nodes B, D, and F are down?

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