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Select the best answer. A network is made of 16 nodes using a broadcast medium. These...

Select the best answer.

A network is made of 16 nodes using a broadcast medium. These nodes use distance vector routing. Suppose these nodes turn on at the same time. How many rounds of communications are needed for all the nodes to update their routing tables with ALL nodes in the network.

Answer choices:

a) 15

b) 16

c) None of these answers

d) 7

e) 8

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Answer #1

Answer)

c)

The answer is 16*15 = 240. To update all the 16 nodes it should broadcast the packet to all the 15 nodes in the network. So every node will broadcast the packet to all the 15 nodes. so 16 nodes * 15 times broadcast = 240 times. In distance vector routing all the nodes create a routing table to calculate the shortest distance.

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