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Which one of the following answer choices below is true regarding the OSPF topology database?（）
- A、All entries in the topology database will be included on each router.
- B、All routers in the same OSPF area will have one topology database.
- C、The Dijkstra algorithm is used in the creation of the topology database.
- D、LSA packets are used to update and maintain the topology database.
参考答案
更多 “Which one of the following answer choices below is true regarding the OSPF topology database?（）A、All entries in the topology database will be included on each router.B、All routers in the same OSPF area will have one topology database.C、The Dijkstra algorithm is used in the creation of the topology database.D、LSA packets are used to update and maintain the topology database.” 相关考题
考题
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.
考题
Which three statements about OSPF areas are true?()
A. Areas introduce a boundary on the link - state updates.B. Areas are logical definitions specific to any given router.C. All routers within an area have the exact link - state database.D. The calculation of the Dijkstra algorithm on a router is limited to changes within an area.E. The area designated router will always have a priority of 0.
考题
When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?()
A. All OSPF routers in stubby areas can have type 3 LSAs in their database.B. All OSPF routers in stubby areas can have type 7 LSAs in their database.C. All OSPF routers in totally stubby areas can have type 3 LSAs in their database.D. All OSPF routers in totally stubby areas can have type 7 LSAs in their database.E. All OSPF routers in NSSA areas can have type 3 LSAs in their database.F. All OSPF routers in NSSA areas can have type 7 LSAs in their database.
考题
Which one of the following answer choices below is true regarding the OSPF topology database?()
A. All entries in the topology database will be included on each router.B. All routers in the same OSPF area will have one topology database.C. The Dijkstra algorithm is used in the creation of the topology database.D. LSA packets are used to update and maintain the topology database.
考题
What are two characteristics of the OSPF process identifier?()
A. It is needed to identify a unique instance of an OSPF database.B. It is an optional parameter only necessary if multiple OSPF processes are used.C. It is locally significant.D. It is globally insignificantE. All routers in the same OSPF area must have the same process ID to exchange routing information.
考题
Which of the following statements describe the characteristic of link state routing protocols?()
A. The exchange of an advertisement is triggered by a change in the network.B. All routers exchange routing tables with each other in a multipoint network.C. Packets are routed based upon the shortest path to the destination.D. Paths are chosen depending on the cost efficiency factor.E. Every router in an OSPF area is capable of representing the entire network topology.F. Only the designated router in an OSPF area can represent the entire network topology.
考题
An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?()
A. Interfaces will automatically detect and build adjacencies with neighbor routersB. DR and BDR elections will not occurC. DR and BDR elections will occurD. The neighbor command is required to build adjacenciesE. All routers must be configured in a fully meshed topology with all other routers
考题
Which show command will display only the Type 5 LSAs in the OSPF topology database?()
A. show ip ospf database externalB. show ip ospf database nssa - externalC. show ip route ospfD. show ip ospf datab ase summaryE. show ip route
考题
Which of the following are true statements regarding the characteristics of OSPF areas? Select all that apply.()
A. All OSPF networks require the use of multiple areasB. Multiple OSPF areas must connect to area 0C. Single area OSPF networks must be configured in area 1D. Areas can be assigned any number from 0 to 63535E. Area 0 is called the backbone areaF. Each OSPF area need to be configured with a loopback interface
考题
What are the characteristic of link state routing protocols?()
A. The exchange of advertisement is triggered by a change in the network.B. All routers exchange routing tables with each other iIn a multipoint network.C. Packets are routed based upon the shortest path to the destination.D. Paths are chosen depending on the cost efficiency factor.E. Every router in an OSPF area is capable of representing the entire network topology.F. Only the designated router in an OSPF area can represent the entire network topology.
考题
Which of these statements is true of routing protocols in a hub－and－spoke IPsec VPN topology?()
A. EIGRP can summarize per interface.B. OSPF router databases remain independent.C. When they are configured with stubs, EIGRP regularly floods the topology.D. OSPF topology decisions are made independent of hierarchy or area.
考题
While troubleshooting some connectivity issues，you issue the “show ip ospf database”in order to ex amine the link state database. Which three of the statements below are true regarding the OSPF link state database（）A.Each router has an identical link state database.B.External routes are imported into a separate link state database.C.Syn chronization of link state databases is maintained via floodingo f LSAs.D.Information in the link state database is used to build a routing table by calculating a shortest-path tree.E.By default,link state databases are refreshede very 10 minutes in the absence of topology changes.
考题
Which of the following describe the process identifier that is used to run OSPF on a router?()
A. It is locally significant.B. It is globally significant.C. It is needed to identify a unique instance of an OSPF database.D. It is an optional parameter required only if multiple OSPF processes are running on the router.E. All routers in the same OSPF area must have the same process ID if they are to exchange routing information.
考题
While troubleshooting some connectivity issues，you issue the “show ip ospf database”in order to ex amine the link state database. Which three of the statements below are true regarding the OSPF link state database（）A、Each router has an identical link state database.B、External routes are imported into a separate link state database.C、Syn chronization of link state databases is maintained via floodingo f LSAs.D、Information in the link state database is used to build a routing table by calculating a shortest-path tree.E、By default,link state databases are refreshede very 10 minutes in the absence of topology changes.
考题
Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two.)（）A、It is locally significant.B、It is globally significant.C、It is needed to identify a unique instance of an OSPF database.D、It is an optional parameter required only if multiple OSPF processes are running on the router.E、All routers in the same OSPF area must have the same process ID if they are to exchange routing information.
考题
Which of the following describe the process identifier that is used to run OSPF on a router (Choose two.)（）。A、It is locally significantB、It is globally significantC、It is needed to identify a unique instance of an OSPF databaseD、It is an optional parameter required only if multiple OSPF processes are running on the routerE、All routers in the same OSPF area must have the same process ID if they are to exchange routing information
考题
When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?（）A、All OSPF routers in stubby areas can have type 3 LSAs in their database.B、All OSPF routers in stubby areas can have type 7 LSAs in their database.C、All OSPF routers in totally stubby areas can have type 3 LSAs in their database.D、All OSPF routers in totally stubby areas can have type 7 LSAs in their database.E、All OSPF routers in NSSA areas can have type 3 LSAs in their database.F、All OSPF routers in NSSA areas can have type 7 LSAs in their database.
考题
Which three statements about OSPF areas are true?（）A、Areas introduce a boundary on the link - state updates.B、Areas are logical definitions specific to any given router.C、All routers within an area have the exact link - state database.D、The calculation of the Dijkstra algorithm on a router is limited to changes within an area.E、The area designated router will always have a priority of 0.
考题
What are two characteristics of the OSPF process identifier?（）A、It is needed to identify a unique instance of an OSPF database.B、It is an optional parameter only necessary if multiple OSPF processes are used.C、It is locally significant.D、It is globally insignificantE、All routers in the same OSPF area must have the same process ID to exchange routing information.
考题
Which two are characteristics of link-state routing protocols?（） (Choose two.)A、Routers choose a best path for a destination based on the SPF algorithm.B、All routers in a given area or level build a consistent database describing the network's topology.C、Routers choose the best path for a destination based on the interface on which they received the link stateadvertisement with the lowest cost.D、All routers in a given area or level forward link state advertisements between interfaces in the same area or level, adding their metric to the link state advertisement's cost information when they forward it.
考题
An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?（）A、Interfaces will automatically detect and build adjacencies with neighbor routersB、DR and BDR elections will not occurC、DR and BDR elections will occurD、The neighbor command is required to build adjacenciesE、All routers must be configured in a fully meshed topology with all other routers
考题
Which show command will display only the Type 5 LSAs in the OSPF topology database？（）A、show ip ospf database externalB、show ip ospf database nssa - externalC、show ip route ospfD、show ip ospf datab ase summaryE、show ip route
考题
多选题While troubleshooting some connectivity issues，you issue the “show ip ospf database”in order to ex amine the link state database. Which three of the statements below are true regarding the OSPF link state database（）AEach router has an identical link state database.BExternal routes are imported into a separate link state database.CSyn chronization of link state databases is maintained via floodingo f LSAs.DInformation in the link state database is used to build a routing table by calculating a shortest-path tree.EBy default,link state databases are refreshede very 10 minutes in the absence of topology changes.
考题
单选题Which show command will display only the Type 5 LSAs in the OSPF topology database？（）A
show ip ospf database externalB
show ip ospf database nssa - externalC
show ip route ospfD
show ip ospf datab ase summaryE
show ip route
考题
多选题Which of the following statements describe the characteristic of link state routing protocols?（）AThe exchange of an advertisement is triggered by a change in the network.BAll routers exchange routing tables with each other in a multipoint network.CPackets are routed based upon the shortest path to the destination.DPaths are chosen depending on the cost efficiency factor.EEvery router in an OSPF area is capable of representing the entire network topology.FOnly the designated router in an OSPF area can represent the entire network topology.
考题
单选题Which one of the following answer choices below is true regarding the OSPF topology database?（）A
All entries in the topology database will be included on each router.B
All routers in the same OSPF area will have one topology database.C
The Dijkstra algorithm is used in the creation of the topology database.D
LSA packets are used to update and maintain the topology database.
考题
单选题Which of these statements is true of routing protocols in a hub-and-spoke IPsec VPN topology？（）A
EIGRP can summarize per interface.B
OSPF router databases remain independent.C
When they are configured with stubs， EIGRP regularly floods the topology.D
OSPF topology decisions are made independent of hierarchy or area.
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