Answer:
The router will purposefully drop messages if message traffic exceeds its capacity.
Explanation:
As we know that the router and the switch are the connecting devices. The router works at the network layer and used for determining the shortest path
On the other hand the switch work is to connected many devices that are available in the network.
Therefore the correct option is second as the router also depicts when there is the purpose of the messaged drop[ed if the traffic of message exceeds than its capacity
