OSPF (Open Shortest Path First) is a link-state routing protocol that uses an administrative distance of 110. This means that OSPF routes are preferred over routes from other routing protocols, such as RIP (Routing Information Protocol), which has an administrative distance of 120. BGP (Border Gateway Protocol) is a path vector routing protocol that uses an administrative distance of 200. EIGRP (Enhanced Interior Gateway Routing Protocol) is a hybrid routing protocol that uses an administrative distance of 90. Static routes have an administrative distance of 1.