Drag and drop the characteristics from the left onto the routing protocols they describe on the right.

Question:
Drag and drop the characteristics from the left onto the routing protocols they describe on the right.

Answer
OSPF
+ Link State Protocol
+ supports only equal multipath load balancing
+ quickly computes new path upon link failure
EIGRP
+ selects routes using the DUAL algorithm
+ maintains alternative loop-free backup path if available
+ Advanced Distance Vector Protocol

Explanation: EIGRP maintains alternative loop-free backup via the feasible successors. To qualify as a feasible successor, a router must have an Advertised Distance (AD) less than the Feasible distance (FD) of the current successor route.

Advertised distance (AD): the cost from the neighbor to the destination.

Feasible distance (FD): The sum of the AD plus the cost between the local router and the next-hop router

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