What must be true for a floating static route to act as a backup when the primary route fails?

For a floating static route to serve as a backup, it must have a higher administrative distance (AD) than the primary route. Routing protocols and static routes are prioritized based on their AD, with lower values being preferred. If the primary route (e.g., a directly connected route, OSPF, EIGRP, or another static route) becomes unavailable, the router will then consider routes with higher ADs. By configuring the floating static route with a higher AD, it remains in the routing table but is not used unless the primary, lower-AD route fails. A lower AD on the floating static route would make it the preferred route, not a backup. The default-information originate command is for advertising default routes, not for configuring backup static routes.