单选题A router has EIGRP configured as the only routing protocol. How does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?（）AIt immediately sends its entire routing table to its neighbors.BEIGRP sends a Hello packet to the DR to inform it of the route failure.CIt automatically forwards traffic to a fallback default route until a successor route is found.DIt sends queries out to neighbors until a new successor route is found.EIt places the route in holddown until LSA updates inform it of a new route to the network.
单选题
A router has EIGRP configured as the only routing protocol. How does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?（）
A
It immediately sends its entire routing table to its neighbors.
B
EIGRP sends a Hello packet to the DR to inform it of the route failure.
C
It automatically forwards traffic to a fallback default route until a successor route is found.
D
It sends queries out to neighbors until a new successor route is found.
E
It places the route in holddown until LSA updates inform it of a new route to the network.
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多选题What are three key concepts that apply when configuring the EIGRP stub routing feature in a hub and spoke network？（）AA hub router prevents routes from being advertised to the remote router.BOnly remote routers are configured as stubs.CStub routers are not queried for routes.DSpoke routers connected to hub routers answer the route queries for the stub router.EA stub router should have only EIGRP hub routers as neighbors.FEIGRP stub routing should be used on hub routers only.
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