Match each route source or concept to its most accurate description.

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How to think about this question

Routing in Cisco networks involves multiple route sources, each with distinct characteristics and purposes. Connected routes are the simplest, representing networks directly attached to a router's interfaces. These routes are automatically added to the routing table when the interface is up and configured with an IP address. Static routes are manually configured by administrators to define explicit paths to destination networks, useful for predictable routing or when dynamic protocols are not desired. Dynamic routing protocols like OSPF learn routes by exchanging information with other routers, building a comprehensive view of the network topology through link-state advertisements. The router uses administrative distance to decide which route to install when multiple routes to the same destination exist. Connected routes have the lowest administrative distance (0), making them the most preferred. Static routes have a default administrative distance of 1, making them preferred over dynamic routes like OSPF, which has an administrative distance of 110. A floating static route is a static route configured with an artificially high administrative distance, so it only becomes active if the primary route fails. This mechanism provides a backup path without interfering with the preferred dynamic route. A common exam trap is confusing floating static routes with regular static routes or dynamic routes. Candidates may incorrectly assume that floating static routes are primary routes or that OSPF routes always override static routes regardless of administrative distance. In practical networking, understanding these distinctions is critical for designing resilient networks and troubleshooting routing issues. Floating static routes provide a reliable failover mechanism, while OSPF dynamically adapts to topology changes, and connected routes ensure immediate reachability to directly attached networks.

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