Which interface is used to forward traffic to the destination network?
A router selects the best route by preferring the lowest administrative distance and then the lowest metric among otherwise comparable routes. In the table, the routes through G0/12 and G0/19 both have administrative distance 90, which is better than the routes through G0/9 and G0/1 with administrative distance 110. Between those AD 90 routes, G0/12 has the lower metric, 2170 versus 4695, so traffic is sent out interface G0/12.
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