Q.

In Unicast routing, if instability is between three nodes, stability cannot be                  

A. stable
B. reversed
C. guaranteed
D. forward
Answer» C. guaranteed
Explanation: in unicast routing, there is only sender and one receiver. so, if there is instability between three nodes, in which one is sender, one is receiver and one is the router in the path, there is no other path available for the packet and the stability of the network is not guaranteed.
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