What is the administrative distance (AD) of RIP?

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Multiple Choice

What is the administrative distance (AD) of RIP?

Explanation:
Administrative distance is the trust level the router assigns to a routing protocol as a source of routes. When a destination is reachable via more than one protocol, the router picks the route with the smallest (lowest) AD. RIP uses a distance-vector approach and relies on hop count as its metric, and by default its administrative distance is 120. This makes RIP-based routes less trusted than those from protocols with lower AD values (for example, OSPF typically has 110, and EIGRP internal has 90). So, among the given options, 120 is the correct AD for RIP. If a destination is advertised by RIP and another protocol with a lower AD also provides a route, the lower-AD route will be chosen; if RIP is the only source, the route will still be installed but with AD 120.

Administrative distance is the trust level the router assigns to a routing protocol as a source of routes. When a destination is reachable via more than one protocol, the router picks the route with the smallest (lowest) AD. RIP uses a distance-vector approach and relies on hop count as its metric, and by default its administrative distance is 120. This makes RIP-based routes less trusted than those from protocols with lower AD values (for example, OSPF typically has 110, and EIGRP internal has 90). So, among the given options, 120 is the correct AD for RIP. If a destination is advertised by RIP and another protocol with a lower AD also provides a route, the lower-AD route will be chosen; if RIP is the only source, the route will still be installed but with AD 120.

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