When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?（）A、The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.B、The LSA is placed in the

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When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?（）

A、The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.
B、The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.
C、The LSA is dropped and a message is sent to the transmitting router.
D、The LSA is flooded imme diately out of all the OSPF interfaces, except the interface from which the LSA was received.

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相似问题和答案

第1题：

What happens to the 66.66.66／24 route when it is evaluated by this policy? ()

A. The route does not match this policy.

B. The route is rejected.

C. The route is accepted.

D. The route is accepted, then rejected.

参考答案：C

第2题：

When you display the routing table by entering the show route command, what does the* indicate?()

A.The route is a direct route.

B.The route was selected as active.

C.The route is a default route.

D.The route was learned using a dynamic routing protocol.

参考答案：B

第3题：

He showed great ( ) in pursuing the new learning.

A、enthusiasm

B、authority

C、essence

D、aggression

参考答案：A
解析：enthusiasm：热情 essence：本质 aggression：侵略

第4题：

What kind of curriculum evaluation does the new curriculum reform advocate?

A.Basing on the process, promoting the development.
B.Emphasis on new ways of learning.
C.Emphasis on the function of selection.
D.Emphasis on students' learning.

答案：A

解析：

考查课程评价。新一轮课程改革倡导“立足过程，促进发展”的课程评价，这不仅仅是评价体系的变革，更重要的是评价理念、评价方法与手段以及评价实施过程的转变。

第5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.

参考答案：C

第6题：

What happens when a route does not match any user configured policies?()

A.The route is rejected.

B.The route is accepted.

C.The route is given a lower priority.

D.The route is sent to the default policy.

参考答案：D

第7题：

You have just configured a static default route on router TK1. What is the purpose of a default route?()

A. It is a route to be used when the routing protocol fails.

B. It is a route configured by an ISP that sends traffic into a corporate network.

C. It is a route used when a packet is destined for a remote network that is not listed in the routing table.

D. It is a route manually configured for a specific remote network for which a routing protocol is not configured.

E. It is used to send traffic to a stub network.

参考答案：C

第8题：

Our English teacher always emphasizes the importance of learning new words in context rather than learning each of them( ).

A、individually

B、exclusively

C、approximately

D、supposedly

参考答案：A

第9题：

Which three statements are true about EIGRP route summarization?()

A.When manual summarization is configured, the router immediately creates a route that points to null0 interface

B.Manual route summarization is configured in router configuration mode when the router is configured for EIGRP routing

C.Manual route summarization is configured on the interface

D.The ip summary - address eigrp command generates a default route with an administrative distance of 5

E.When manual summarization is configured, the summary route will use the metric of the largest specific metric of the summary routes

F.The ip summary - address eigrp command generates a default route with an administrative distance of 90

参考答案：A, C, D

第10题：

Learning is more effective when the learners are actively involved in the learning process.（）

A对

B错

对
略

When learning a new route, if a

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