Given the network diagram, which routers currently make up the IS － IS backbone?() A. R3,R4,R6B. R2,R3,R6,R7C. R1 through R8D. R3,R4,R5,R6E. R2,R3,R4,R6,R7
Given the network diagram, which routers currently make up the IS － IS backbone?()
A. R3,R4,R6
B. R2,R3,R6,R7
C. R1 through R8
D. R3,R4,R5,R6
E. R2,R3,R4,R6,R7
相关考题：
Given the set of routers, each with an interface on the same multi－access network:Which router can never be a designated router on that multi－access network?() A.RouterAB.RouterBC.RouterCD.RouterD
You are the network administrator setting up the IP network for a new branch office. You need at least 5 networks with 25 hosts each. You have been allocated a /24 network.Which prefix length will satisfy the given requirements?（）A./24B./26C./27D./28
Which of the following documents should always be kept up－to－date after any major changes aremade to a network backbone?() A. Network diagramB. Performance baselineC. Network security procedureD. Company policy
Given the network diagram, which address would successfully summarize only the networks seen? () A. 192.168.0.0/24B . 192.168.8.0/20C. 192.168.8.0/21D. 192.168.12.0/20E. 192.168.16.0/21F. These networks cannot be summarized.
Which three are benefits of IS － IS over OSPF?() A. supports route tagsB. supports more routers in an areaC. does not require Hello packets to establish neighbor relationshipsD. produces fewer link state advertisements for a given networkE. supports network layer protocols other than IPF. requires fewer neighbor relationships in a broadcast multiaccess network
You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）A. Internal routers within the backbone area (area 0)B. Internal routers within the NSSAsC. Internal routers within the stubby areasD. ASBRsE. ABRsF. DRs and BDRs
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
If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）A、A sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkB、A sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedC、A SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorD、A SHAM link is part of OSPF network of MPLS-VPN provider
You enabled CDP on two Cisco Routers which are connected to each other. The Line and Protocol statusfor the interfaces on both routers show as UP but the routers do not see each other a CDP neighbors.Which layer of the OSI model does the problem most likely exist？（）A、PhysicalB、SessionC、ApplicationD、Data-LinkE、Network
Which three are benefits of IS - IS over OSPF?（）A、supports route tagsB、supports more routers in an areaC、does not require Hello packets to establish neighbor relationshipsD、produces fewer link state advertisements for a given networkE、supports network layer protocols other than IPF、requires fewer neighbor relationships in a broadcast multiaccess network
Which four statements about the Carrier Supporting Carrier （CSC） feature are true？ （）A、MPLS is required between the PE and CE routers that connect the backbone carrier to the customer carrier.B、The backbone carrier must enable the PE router to check that the packets it receives from the CErouter contain only the labels that the PE router advertised to the CE router.C、Every packet that crosses the backbone carrier must be encapsulated so that the packet includes MPLS labelsD、AII PE routers that link the backbone carrier to the customer carrier must run Route Target Rewrite.E、Arouting protocol is required between the PE and CE routers that connect the backbone carrierto thecustomer carrier. The routing protocol enables the customer carrier to exchange IGP routing information with the backbone carrier.
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.
An ISP is running a large IBPG network with 25 routers. The full mesh topology that is currently inplace is inefficiently using up bandwidth from all of the BGP traffic. What can the administratorconfigure to reduce the number of BGP neighbor relationships within the AS？（）A、Route reflectorsB、Route mapsC、Route redistributionD、Peer groupsE、Aggregate addresses
You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）A、Internal routers within the backbone area (area 0)B、Internal routers within the NSSAsC、Internal routers within the stubby areasD、ASBRsE、ABRsF、DRs and BDRs
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 of the following documents should always be kept up-to-date after any major changes aremade to a network backbone?（）A、Network diagramB、Performance baselineC、Network security procedureD、Company policy
Which of the following routing protocols involves all routers knowing the connections status ofother routers within the network?（）A、RIPv2B、OSPFC、IGRPD、BGP
You are the network administrator setting up the IP network for a new branch office. You need at least 5 networks with 25 hosts each. You have been allocated a /24 network.Which prefix length will satisfy the given requirements?（）A、/24B、/26C、/27D、/28
Which four components make up the Network Entity Title （NET） of an IS-IS router？（）A、AFB、AFIC、MACD、AreaE、SysIDF、A-SelectorG、N-SelectorH、IP-address
多选题Which two are characteristics of link-state routing protocols?（） (Choose two.)ARouters choose a best path for a destination based on the SPF algorithm.BAll routers in a given area or level build a consistent database describing the network's topology.CRouters choose the best path for a destination based on the interface on which they received the link stateadvertisement with the lowest cost.DAll 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.
单选题Which of the following documents should always be kept up-to-date after any major changes aremade to a network backbone?（）ANetwork diagramBPerformance baselineCNetwork security procedureDCompany policy
单选题Which of the following should be included in the network diagram？（）AServer room access logBServer typesCOEM contact informationDTemperature reading
单选题You are the network administrator setting up the IP network for a new branch office. You need at least 5 networks with 25 hosts each. You have been allocated a /24 network.Which prefix length will satisfy the given requirements?（）A/24B/26C/27D/28
多选题Which three are benefits of IS - IS over OSPF?（）Asupports route tagsBsupports more routers in an areaCdoes not require Hello packets to establish neighbor relationshipsDproduces fewer link state advertisements for a given networkEsupports network layer protocols other than IPFrequires fewer neighbor relationships in a broadcast multiaccess network
单选题You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）AInternal routers within the backbone area (area 0)BInternal routers within the NSSAsCInternal routers within the stubby areasDASBRsEABRsFDRs and BDRs
多选题If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）AA sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor linkBA sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchangedCA SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor doorDA SHAM link is part of OSPF network of MPLS-VPN provider
多选题Which four components make up the Network Entity Title （NET） of an IS-IS router？（）AAFBAFICMACDAreaESysIDFA-SelectorGN-SelectorHIP-address