Identify the AD for RIP routes.

The administrative distance (AD) for Routing Information Protocol (RIP) routes is 120. This value represents the trustworthiness of the routing information received from RIP compared to other routing protocols. In terms of routing protocol hierarchy, a lower AD is preferred when the router selects routes to add to its routing table.

RIP, being a distance-vector routing protocol, uses this AD value to determine the best path to a destination. When a router receives routing information from multiple sources, it will choose the route with the lowest AD. For instance, if it receives a route from RIP (AD of 120) and also receives a route from a more reliable protocol like OSPF (which has an AD of 110), the router will prefer the OSPF route.

Understanding the administrative distance is crucial for network professionals, as it plays a critical role in ensuring that the most efficient and reliable routing path is utilized in a network environment.