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【多选题】

The OSPF hello protocol performs which of the following tasks?（）

A、It provides dynamic neighbor discovery

B、It detects unreachable neighbors in 90 second intervals

C、It maintains neighbor relationships

D、It negotiates correctness parameters between neighboring interfaces

E、It uses timers to elect the router witch the fastest links as the designated router

F、It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF

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更多“The OSPF hello protocol performs which of the following tasks?（）”相关的问题
第1题
[多选题] Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using default settings for all timers. An engineer ad ds the ip ospf hello - interval 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this change?（）

A、The show ip ospf neighbor command on R1 lists the revised Hello timer  B、The show ip ospf interfac e brief command on R1 lists the revised Hello timer  C、The R1 - R2 neighborship fails due to Hello timer mismatcH  D、The show ip ospf interface command on R1 lists the revised Hello timer  

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第2题
[单选题] Click the Exhibit button. In the exhibit, what is the purpose of this OSPF configuration?（）

A、The router sends the file debugOSPF (containing hellos sent and LSA updates) to the syslog server.  B、The router traces both OSPF hellos sent and LSA updates, and stores the results in the debugOSPFfile.  C、The router traces both OSPF hellos sent and LSA updates, and sends the results to the syslog process with the debugOSPF facility.  D、The router traces all OSPF operations, stores the results in the debugOSPF file, and marks both hellos sent and LSAupdates in the file with a special flag.  

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第3题
[单选题] Refer to the exhibit. Which statement is true about the configuration? （）

A、RTA will not establish an OSPF adjacency w ith RTB  B、RTA will send OSPF hello packets, but will not send OSPF updates  C、RTA will not accept OSPF hello packets from RTB  D、RTA will send OSPF updates, but will not establish an adjacency with RTB  

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第4题
[] When the Cisco IOS OSPF command ip ospf dead-interval minimal hello-multiplier 5 is configured， which two statements are true？ （）

A、A.OSPF hello interval is 5 seconds  B、B.OSPF hello interval is 1 second  C、C.OSPF dead interval is 1 second  D、D.OSPF dead interval is 5 seconds  E、E.OSPF dead interval is 20 seconds  F、F.OSPF hello interval is 0.2 second  

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第5题
[单选题] You have just completed an OSPF implementation. While executing your verification plan, you determine that R1 is not able to establish full OSPF adjacency with R2. The show ip ospf neighbor comman d output on R1 shows that R2 is stuck in the INIT state. What could be the cause of this problem?（）

A、DR and BDR election errors between R1 and R2.  B、The R2 router has not received the OSPF hello packets from the R1 router.  C、Mismatched interface ma ximum transmission unit (MTU) configuration between the R1 and R2.  D、Mismatched OSPF hello interval configuration between the R1 and R2  E、Corrupted LSAs exchanges between the R1 and R2.  

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第6题
[单选题] Refer to the exhibit. On the basis of the configuration provided, how are the Hello packets sent by R2 handled by R5 in OSPF area 5?（）

A、The Hello packets will be exchanged and adjacency will be established between routers R2 and R5.  B、The Hello packets will be exchanged but the routers R2 and R5 will become neighbors only.  C、The Hello packets will be dropped and no adjacency will be established between routers R2 and R5.  D、The Hello packets will be dropped but the routers R 2 and R5 will become neighbors.  

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第7题
[多选题] The OSPF Hello protocol performs which of the following tasks (Choose two.)（）。

A、It provides dynamic neighbor discovery.  B、It detects unreachable neighbors in 90 second intervals.  C、It maintains neighbor relationships.  D、It negotiates correctness parameters between neighboring interfaces.  E、Ituses timers to elect the router with the fastest links as the designated router.  F、It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF.  

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第8题
[单选题] What is the purpose of the OSPF hello packet?（）

A、A  B、B  C、C  D、D  

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第9题
[单选题] What is the purpose of the OSPF link-state update packet?（）

A、describes a change to the OSPF hello timer  B、carries one or more link-state advertisements  C、establishes and maintains neighbor relationships  D、describes the contents of the entire link-state database  

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