Which type of EIGRP route entry describes a feasible successor?()A. a primary route,stored in the routing tableB. a backup route,stored in the routing tableC. a backup route,stored in the topology tableD. a primary route,stored in the topology table

第1题：

Which two statements about the EIGRP DUAL process are correct?（）

• A、An EIGRP route will go active if there are no successors or feasible successors in the EIGRP topology table.
• B、An EIGRP route will go passive  if there are no successors in the EIGRP topology table.
• C、DUAL will trigger an EIGRP query process while placing the flapping routes in the holddown state.
• D、A feasible successor in the EIGRP topology table can become the successor only after all the query requests have been replied to.
• E、The stuck in active state is caused when the wait for the query replies have timed out.
• F、EIGRP queries are sent during the loading state in the EIGRP neighbor establishment process.

第2题：

Which of the following is true regarding the effect of EIGRP queries on the network design？（）

• A、 EIGRP queries will be the most significant issue with respect to stability and convergence 
• B、 EIGRP queries are not a consideration as long as EIGRP has a feasible successor with a nexthop AD that is greater than the FD of the current successor route 
• C、 EIGRP queries will only increase the convergence time when there are no EIGRP stubsdesigned in the network

第3题：

Which statements are true about EIGRP successor routes?（）

• A、A successor route is used by EIGRP to forward traffic to a destination.
• B、Successor routes are saved in the topology table to be used if the primary route fails.
• C、Successor routes are flagged as "active" in the routing table.
• D、A successor route may be backed up by a feasible successor route.
• E、Successor routes are stored in the neighbor table following the discovery process.
• F、Successors are not used in EIGRP.

第4题：

Which statements are true about EIGRP successor routes? （）

• A、A successor route is used by EIGRP to forward traffic to a destination.
• B、Successor routes are saved in the topology table to be used if the primary route fails.
• C、Successor routes are flagged as "active" in the routing table.
• D、A successor route may be backed up by a feasible successor route.
• E、Successor routes are stored in the neighbor table following the discovery process.

第5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.

第6题：

Which statements are true about EIGRP successor routes (Choose two.)（）。

• A、A successor route is used by EIGRP to forward traffic to a destination.
• B、Successor routes are saved in the topology table to be used if the primary route fails.
• C、Successor routes are flagged as "active" in the routing table.
• D、A successor route may be backed up by a feasible successor route.
• E、Successor routes are stored in the neighbor table following the discovery process.

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第13题：

After DUAL calculations, a router has identified a successor route, but no routes have qualified as a feasible successor. In the event that the current successor goes down, what process will EIGRP use in the selection of a new successor?（）

• A、EIGRP will automatically use the route with the lowest advertised distance (AD) .
• B、The route will transition to the active state.
• C、The route will transition to the passive state.
• D、EIGRP will find the interface with the lowest MAC address.
• E、EIGRP will automatically use the route with the lowest feasible distance (FD).

第14题：

Which condition must be satisfied before an EIGRP neighbor can be considered a feasiblesuccessor?（）

• A、The neighbor's advertised distance must be less than or equal to the feasible distance of the current successor.
• B、The neighbor's advertised distance must be less than the f easible distance of the current successor.
• C、The neighbor's advertised distance must be greater than the feasible distance of the current successor.
• D、The neighbor's advertised distance must be equal to the feasible distance of the current successor .
• E、The neighbor's advertised distance must be greater than or equal to the feasible distance of the current successor.

第15题：

Which command will display all the EIGRP feasible successor routes known to a router?（）

• A、Router# show ip eigrp routes *
• B、Router# show ip eigrp summary
• C、Router# show ip eigrp topology
• D、Router# show ip eigrp adjacencies
• E、Router# show ip eigrp neighbors detail

第16题：

A router has been configured with an EIGRP variance of 3. Which of the following statements istrue？（）

• A、An error will result because a router cannot be configured with an EIGRP variance of 3 becausethe maximum variance number is 2
• B、The successor route will end up in the routing table， and so will any route with a metric at mostthree times greater than the value of the successor’s metric
• C、EIGRP will only advertise routes that are within three hops of the current router
• D、The successor route will end up in the routing table， and so will any route with a metric at leastone third the value of the successor’s metric
• E、The best three routes with equal cost paths will end up in the routing table
• F、The successor route will be any route with three times the value of the advertised distance

第17题：

Which two statements are true regarding EIGRP？（）

• A、Passive routes are in the process of being calculated by DUAL.
• B、EIGRP supports VLSM，route summarization，and routing update authentication.
• C、EIGRP exchanges full routing table information with neighboring routers with every update.
• D、If the feasible successor has a higher advertised distance than the successor route，it becomes theprimary route.
• E、A query process is used to discover a replacement for a failed route if a feasible successor is not identified from the current routing information.

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