问答题Which OSPF network type is ideal for partially meshed NBMA networks because it is easy to configure（requires no configuration of neighbor commands）， consumes only one IP subnet， and requires no designated router election？
问答题
Which OSPF network type is ideal for partially meshed NBMA networks because it is easy to configure（requires no configuration of neighbor commands）， consumes only one IP subnet， and requires no designated router election？
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Which OSPF router will advertise a Type 2 network LSA for a broadcast network segment?() A.AB.BC.CD.D
Which OSPF router type summarizes network advertisements from one OSPF area into another?() A.AB.BC.CD.D
Refer to the exhibit. OSPF is configured on all routers in the network. Area 5 is configured as an NSSA areA. The RIPv2 routes are redistributed into the OSPF domain on router R5. What two types of LSAs will be originated by router R5?（）A. type 1 Router LSAB. type 2 Network LSAC. type 3 Network Summary LSAD. type 4 ASBR Summary LSAE. type 5 AS External LSAF. type 7 NSSA External LSA
A new network has been configured using OSPF as the routing protocol. With which network type will OSPF establish router adjacencies but not perform the DR／BDR election process?() A. point-to-pointB. Backbone area 0C. Broadcast multicastD. Non-broadcast multi-accessE. The DR/BDR process is done for all interface types
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
Which OSPF LSA is used to support MPLS traffic engineering？（）A、opaque LSA （Type 8）B、opaque LSA （Type 9）C、link LSA （Type 1）D、network LSA （Type 2）E、opaque LSA （Type 10）
What are two characteristics of Frame Relay point-to-point subinterfaces?（）A、They create split-horizon issuesB、They require a unique subnet within a routing domainC、They emulate leased linesD、They are ideal for full-mesh topologiesE、They require the use of NBMA options when using OSPF
Under which network type circumstance would an OSPF router establish router adjacencies while not performing the DR/BDR election process?（）A、Point-to-pointB、BroadcastC、Non-broadcast multi-accessD、Backbone area 0E、None of the above
The show ip ospf database external command displays information about which OSPF LSA type？（）A、LSA type 1B、LSA type 2C、LSA type 7D、LSA type 3E、LSA type 9F、LSA type 5
Which OSPF network type is ideal for partially meshed NBMA networks because it is easy to configure（requires no configuration of neighbor commands）， consumes only one IP subnet， and requires no designated router election？
The following was issues on router TestKingA: TestKingA #show ip ospf neighbor Neigbor ID PRI State Dead Time Address Interface 192.168.1.2 1 Full/- 00:00:37 192.168.1.2 Serial1 Which type of OSPF network will provide the output shown in the graphic?（）A、FDDIB、nonbroadcast multiaccessC、broadcast multi-accessD、point-to-point
OSPF stub areas are an important tool for the Network designer； which of the following two shouldbe considered when utilizing OSPF stub areas？ （）A、 OSPF stub areas increase the size of the LSDB with the addition of Type 3 and 5 LSAsB、 OSPF not so stubby areas are particularly useful as a simpler form of summarizationC、 OSPF stub areas are always insulated from external changesD、 OSPF totally stubby cannot distinguish among ABRs for the best route to destinationsoutsidethe areasE、 OSPF stub areas can distinguish among ASBRs for destinations that are external to the OSPFdomain
Which of the following are not true OSPF LSA rules？（）A、OSPF LSA type 5 triggers an LSA type 7 at an ABR between an NSSA and the backbone areaB、OSPF LSA type 1 triggers an LSA type 3 at an ABR.C、OSPF LSA type 7 triggers an LSA type 5 at an ABR between an NSSA and the backbone areaD、OSPF LSA type 3 triggers an LSA type 4 at an ABR.E、OSPF LSA type 5 triggers an LSA type 7 at an A5BR but only in N5SAsF、OSFP LSA type 2 triggers an LSA type 3 at an ABR
Under which circumstance, ie network type, would an OSPF router establish a neighbor adjacency, even though the DR/BDR election process was not performed?（）A、Point-to-pointB、Broadcast multicastC、Nonbroadcast multicastD、Backbone area 0E、Virtual Link
Which OSPF area type allows for the flooding of a Type 7 LSA?（）A、stubB、transitC、borderD、not-so-stubby
Which statement best describes OSPF external LSAs （type 5）？（）A、OSPF external LSAs are automatically flooded into all OSPF areas， unlike type 7 LSAs， which require that redistribution be configured.B、External LSAs （type 5） are automatically changed to type 1 LSAs at ASBRs.C、Type 5 LSAs are route summaries describing routes to networks outside the OSPF Autonomous System.D、External network LSAs （type 5） redistributed from other routing protocols into OSPF are not permitted to flood into a stub area.
在OSPF网络中，对于Network LSA（Type=2），下列描述正确的是（）。A、Network LSA是由ABR生成的B、只有连接广播网络和NBMA网络的路由器才可能产生Network LSAC、DR通过Network LSA来描述本网段中所有已经同其建立了邻接关系的路由器D、Network LSA传递范围是其所属的整个自治系统
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
单选题Under which circumstance, ie network type, would an OSPF router establish a neighbor adjacency, even though the DR/BDR election process was not performed?（）APoint-to-pointBBroadcast multicastCNonbroadcast multicastDBackbone area 0EVirtual Link
单选题The show ip ospf database external command displays information about which OSPF LSA type？（）ALSA type 1BLSA type 2CLSA type 7DLSA type 3ELSA type 9FLSA type 5
多选题You want to limit the number of Type 7 LSAs to be converted into Type 5 LSAs at an appropriate ARB. Which two commands should you use from the [edit] hierarchy level within the JUNOS software configuration mode？（）Aset protocols ospf area-range network/mask-lengthBset protocols ospf area area-id nssa area-range network/mask-lengthCset protocols ospf area area-id area-range network/mask-length restrictDset protocols ospf area area-id nssa area-range network/mask-length restrict
单选题Which OSPF area type allows for the flooding of a Type 7 LSA?（）AstubBtransitCborderDnot-so-stubby
单选题A new network has been configured using OSPF as the routing protocol. With which network type will OSPF establish router adjacencies but not perform the DR/BDR election process?（）Apoint-to-pointBBackbone area 0CBroadcast multicastDNon-broadcast multi-accessEThe DR/BDR process is done for all interface types
多选题The core of a network has four routers connected in a square design with Gigabit Ethernet links using /30 subnets. The network is used to carry voice traffic and other applications. Convergence time is taking more than expected. Which three actions would you take to improve OSPF convergence time？（）AIncrease MTU of the interfaces to accommodate larger OSPF packets.BChange the network type to point-to-point on those links.CReduce SPF initial timer.DIncrease hello interval to avoid adjacency flapping.EEnable OSPF
单选题Which statement best describes OSPF external LSAs （type 5）？（）AOSPF external LSAs are automatically flooded into all OSPF areas, unlike type 7 LSAs, which require that redistribution be configured.BExternal LSAs (type 5) are automatically changed to type 1 LSAs at ASBRs.CType 5 LSAs are route summaries describing routes to networks outside the OSPF Autonomous System.DExternal network LSAs (type 5) redistributed from other routing protocols into OSPF are not permitted to flood into a stub area
多选题You want to limit the number of Type 7 LSAs to be converted into Type 5 LSAs at an appropriateABR. Which two commands should you use from the [edit] hierarchy level within JUNOS configuration mode?（）Aset protocols ospf area-range network/mask-lengthBset protocols ospf area area-id nssa area-range network/mask-lengthCset protocols ospf area area-id area-range network/mask-length restrictDset protocols ospf area area-id nssa area-range network/mask-length restrict
多选题What are two characteristics of Frame Relay point-to-point subinterfaces?（）AThey create split-horizon issuesBThey require a unique subnet within a routing domainCThey emulate leased linesDThey are ideal for full-mesh topologiesEThey require the use of NBMA options when using OSPF