CCNA系列认证
多选题Which statements are true about EIGRP successor routes?（）AA successor route is used by EIGRP to forward traffic to a destination.BSuccessor routes are saved in the topology table to be used if the primary route fails.CSuccessor routes are flagged as ac
题目
A successor route is used by EIGRP to forward traffic to a destination.
Successor routes are saved in the topology table to be used if the primary route fails.
Successor routes are flagged as active in the routing table.
A successor route may be backed up by a feasible successor route.
Successor routes are stored in the neighbor table following the discovery process.
Successors are not used in EIGRP.
参考答案和解析
相似问题和答案
第1题：
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：
A. a primary route,stored in the routing table
B. a backup route,stored in the routing table
C. a backup route,stored in the topology table
D. a primary route,stored in the topology table
第3题：
A. A successor route is used by EIGRP to forward traffic to 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4题：
Which type of EIGRP route entry describes a feasible successor?（）
- A、a primary route,stored in the routing table
- B、a backup route,stored in the routing table
- C、a backup route,stored in the topology table
- D、a primary route,stored in the topology table
正确答案:C
第5题：
A. Passiveroutes 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 the primary 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.
第6题：
A. When summarization is configured, the router will also create a route to null 0.
B. The summary route remains in the route table, even if there are no more specific routes to the network.
C. Summarization is configured on a per- interface level.
D. The maximum metric for the specific routes is used as the metric for the summary route.
E. Automatic summarization across major network boundaries is enabled by default.
第7题：
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8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9题：
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10题：
Which two statements about EIGRP are true？（）
- A、EIGRP supports VLSM， route summarization， and routing update authentication.
- B、If the feasible successor has a higher advertised distance than the successor route， it becomes the primary route.
- C、Passive routes are in the process of being calculated by DUAL.
- D、EIGRP exchanges full routing table information with neighboring routers with every update.
- 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.
正确答案:A,E