Correct Answer: A tracked primary default route with an appropriately tuned SLA monitor probe interval and a reliable external target, paired with a floating static backup route at a higher administrative distance
Explanation: Reliable automatic failover combines proper tracking, a well-chosen external target, a tuned probe interval, and a correctly weighted floating backup route, unlike no tracking with equal-distance routes (which breaks the intended failover logic), an irrelevant internal-only target, an untuned aggressive probe interval, a backup at a lower administrative distance (which would wrongly take priority), or having no backup route at all.
Correct Answer: A tracked primary default route with an appropriately tuned SLA monitor probe interval and a reliable external target, paired with a floating static backup route at a higher administrative distance
Explanation: Reliable automatic failover combines proper tracking, a well-chosen external target, a tuned probe interval, and a correctly weighted floating backup route, unlike no tracking with equal-distance routes (which breaks the intended failover logic), an irrelevant internal-only target, an untuned aggressive probe interval, a backup at a lower administrative distance (which would wrongly take priority), or having no backup route at all.