Two static routes to the same destination subnet exist on a FortiGate. Route 1 uses gateway A with administrative distance 10, and Route 2 uses gateway B with administrative distance 20. Both gateways are reachable. Which route is installed in the FortiGate routing table?
- ARoute 2, because a higher administrative distance reserves more bandwidth and is preferred for primary forwarding
- BBoth routes, because routes to the same destination with different distances are installed and load balanced together
- CNeither route, because conflicting administrative distances to one destination cause FortiGate to discard both entries
- DRoute 1, because the route with the lower administrative distance is considered more trustworthy and is preferred Correct
Why A is wrong: Administrative distance has nothing to do with bandwidth, and higher is not better. This reverses the rule, which is a common mistake, so it is wrong.
Why B is wrong: Routes with different administrative distances are not equal-cost, so only the lower-distance route enters the table. Installing both would require equal distances, so this is incorrect.
Why C is wrong: FortiGate resolves the conflict by selecting the better route rather than discarding both. The idea that a conflict drops all routes is plausible but does not match how distance selection works.
Why D is correct: Administrative distance ranks the believability of routes, and a lower value is preferred. Route 1 at distance 10 is chosen over Route 2 at distance 20, so it is installed in the routing table.