Question: 1. Routing protocols used in data networks only use positive link weights. What would happen with a distance vector routing protocol in the network below

1. Routing protocols used in data networks only use positive link weights. What would happen with a distance vector routing protocol in the network below that contains a negative link weight?

1. Routing protocols used in data networks only use positive link weights.

2) Suppose transmission channels become virtually error-free. Is the data link layer still needed? [3Marks]

3) Suppose all laptops in a large city are to communicate using radio transmissions from a high antenna tower. Is the data link layer or network layer more appropriate for this situation?[3Marks]

4) Suppose that a group of workstations is connected to an Ethernet LAN. If the workstations communicate only with each other, does it make sense to use IP in the workstations? Should the workstations run TCP directly over Ethernet? How is addressing handled? [4Marks]

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