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单选题
How does route poisoning work with holddown timers to prevent routing loops?（）
A
Information learned from one source is not distributed back to that source.
B
Routing updates from the poisoned source are ignored until a holddown timer expires.
C
Failed routes are advertised with infinite metrics.
D
New routing updates are ignored until the network has converged.
E
A route is marked as unavailable when its time-to-live is exceeded.
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更多 “单选题How does route poisoning work with holddown timers to prevent routing loops?（）A Information learned from one source is not distributed back to that source.B Routing updates from the poisoned source are ignored until a holddown timer expires.C Failed routes are advertised with infinite metrics.D New routing updates are ignored until the network has converged.E A route is marked as unavailable when its time-to-live is exceeded.” 相关考题
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单选题When you display the routing table by entering the show route command, what does the* indicate?（）A
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考题
单选题In BGP graceful restart, how does a peer router indicate the end of a route exchange?（）A
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单选题In BGP graceful restart， how does a peer router indicate the end of a route exchange？（）A
An open message with the E bit set.B
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考题
单选题What happens when a route does not match any user configured policies?（）A
The route is rejected.B
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考题
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
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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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