The Border Gateway Protocol（BGP）is an interautonomous system（在此空作答）protocol.The primary function of a BGP speaking system is to exchange network（72）information with other BGP system.This network reachability information includes information on the list of Autonomous System（ASs）that reachability information traverses.BGP-4 provides a new set of mechanisms for supporting（73）interdomain routing.These mechanisms include support for advertising an IP（74）and eliminate the concept of network class within BGP.BGP-4 also introduces mechanisms that allow aggregation of routes,including（75）of AS paths.These changes provide support for the proposed supernetting scheme.A.connectingB.resolvingC.routingD.supernetting
The Border Gateway Protocol（BGP）is an interautonomous system（在此空作答）protocol.The primary function of a BGP speaking system is to exchange network（72）information with other BGP system.This network reachability information includes information on the list of Autonomous System（ASs）that reachability information traverses.BGP-4 provides a new set of mechanisms for supporting（73）interdomain routing.These mechanisms include support for advertising an IP（74）and eliminate the concept of network class within BGP.BGP-4 also introduces mechanisms that allow aggregation of routes,including（75）of AS paths.These changes provide support for the proposed supernetting scheme.
A.connecting
B.resolving
C.routing
D.supernetting
B.resolving
C.routing
D.supernetting
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● The Border Gateway Protocol (BGP) is an interautonomous system （71） protocol. The primary function of a BGP speaking system is to exchange network （72） information with other BGP system. This network reachability information includes information on the list of Autonomous System (ASs) that reachability information traverses. BGP-4 provides a new set of mechanisms for supporting （73） interdomain routing. These mechanisms include support for advertising an IP （74） and eliminate the concept of network class within BGP. BGP-4 also introduces mechanisms that allow aggregation of routes, including （75） of AS paths. These changes provide support for the proposed supernettting scheme.（71）A. connectingB. resolvingC. routingD. supernettting（72）A. secubilityB. reachabilityC. capabilityD. reliability（73）A. answerlessB. connectionlessC. confirmlessD. classless（74）A. prefixB. suffixC. infixD. reflex（75）A. reservationB. relationC. aggregationD. connection
The Border Gateway Protocol(BGP)is an interautonomous system【S1】protoco1．The primary function of a BGP speaking system is to exchange network【S2】information withother BGP system．This network reachability information includes information on the list of Auton0．mous System(ASs)that reachability information traverses．BGP一4 provides a new set of mecha-nisms for supposing【S3】interdomain routing．These mechanisms include support for adver-tising an IP【S4】and eliminate the concept of network class within BGP．BGP-4 also intro-duces mechanisms that allow aggregation of routes，including【S5】of AS paths．These chan-ges provide support for the proposed supernettting schem【S1】A．connectingB．resolvingC．routingD．supernettting
When implementing BGP confederations, which configuration command establishes the globally unique AS number used with external peers outside your network?() A. bgp confederation asB. bgp confederation systemC. bgp confederation remote-asD. bgp confederation identifier
BGP runs over a reliable transport （请作答此空）. This eliminates the need to implement explicit update fragmentation, retransmission, acknowledgement, and （ ）. Any authentication scheme used by the transport protocol may be used in addition to BGP's own （ ）mechanisms. The error notification mechanism used in BGP （ ）that the transport protocol supports a “graceful” close, i.e., that all outstanding data will be delivered （ ）the connection is closed.A.protocolB.movingC.machineD.gateway
Open Shortest Path First (OSPF) was designed as an （ ） gateway protocol, for use in an autonomous system such as a local area network (LAN). It implements Dijkstra's algorithm, also known as the （ ） path first algorithm. As a link-state routing protocol it was based on the link-state algorithm developed for the ARPANET in 1980 and the IS-IS routing protocol. OSPF was first standardised in 1989 as RFC 1131, which is now known as OSPF version 1.Routing protocols like OSPF calculate the shortest route to a destination through the network based on an algorithm. The first routing protocol that was widely implemented, the （ ）, calculated the shortest route based on hops, that is the number of routers that an IP packet had to traverse to reach the destination host. RIP successfully implemented dynamic routing, where routing tables change if the network topology changes. But RIP did not adapt its routing according to changing network conditions, such as data-transfer rate. Demand grew for a dynamic routing protocol that could calculate the fastest route to a destination. （请作答此空） was developed so that the shortest path through a network was calculated based on the cost of the route, taking into account bandwidth, delay and load. Therefore OSPF undertakes route cost calculation on the basis of link-cost parameters, which can be weighted by the administrator. OSPF was quickly adopted because it became known for reliably calculating routes through large and complex local area networks.As a link state routing protocol, OSPF maintains link state （ ）, which are really network topology maps, on every router on which it is implemented. The state of a given route in the network is the cost, and OSPF algorithm allows every router to calculate the cost of the routes to any given reachable destination. Unless the administrator has made a configuration, the link cost of a path connected to a router is determined by the bit rate (1 Gbit/s, 10 Gbit/s, etc) of the interface. A router interface with OSPF will then advertise its link cost to neighbouring routers through multicast, known as the hello procedure. All routers with OSPF implementation keep sending hello packets, and thus changes in the cost of their links become known to neighbouring routers. The information about the cost of a link, that is the speed of a point to point connection between two routers, is then cascaded through the network because OSPF routers advertise the information they receive from one neighbouring router to all other neighbouring routers. This process of flooding link state information through the network is known as synchronisation. Based on this information, all routers with OSPF implementation continuously update their link state databases with information about the network topology and adjust their routing tables.OSPF has become a popular dynamic routing protocol. Other commonly used dynamic routing protocols are the RIP and the Border Gateway Protocol (BGP). Today routers support at least one interior gateway protocol to advertise their routing tables within a local area network. Frequently implemented interior gateway protocols besides OSPF are RIP, IS-IS, and the proprietary Interior Gateway Routing Protocol (IGRP) by Cisco.A.RIPB.IGRPC.OSPFD.BGP
The Border Gateway Protocol（BGP）is an interautonomous system（71）protocol.The primary function of a BGP speaking system is to exchange network（72）information with other BGP system.This network reachability information includes information on the list of Autonomous System（ASs）that reachability information traverses.BGP-4 provides a new set of mechanisms for supporting（在此空作答）interdomain routing.These mechanisms include support for dvertising an IP（74）and eliminate the concept of network class within BGP.BGP-4 also introduces mechanisms that allow aggregation of routes,including（75）of AS paths.These changes provide support for the proposed supernetting scheme.A.answerlessB.connectionlessC.confirmlessD.classless
The Border Gateway Protocol（BGP）is an interautonomous system（71）protocol.The primary function of a BGP speaking system is to exchange network（在此空作答）information with other BGP system.This network reachability information includes information on the list of Autonomous System（ASs）that reachability information traverses.BGP-4 provides a new set of mechanisms for supporting（73）interdomain routing.These mechanisms include support for advertising an IP（74）and eliminate the concept of network class within BGP.BGP-4 also introduces mechanisms that allow aggregation of routes,including（75）of AS paths.These changes provide support for the proposed supernetting scheme.A.secubilityB.reachabilityC.capabilityD.reliability
What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network in the show ip bgp command output？（）A、The network was originated via redistribution of an interior gateway protocol into BGPB、The network was defined by a static routeC、The network was originated via a network or aggregate commandD、The network was learned via EBGPE、The network was learned via IBGP
What technique should be used on BGP edge routers to prevent a multi - homed autonomous system from becoming a trans it system?（）A、Advertise with a high MED value all networks that are discovered via external BGP.B、Set the no - export community attribute on all networks that are advertised externally.C、Remove the AS - Path information on all routes in the BGP table pr ior to advertising externally.D、Set the origin code to incomplete for all networks that are discovered via external BGP.E、Only advertise networks externally if they have been discovered via internal BGP.F、Use an outgoing distribution list to filte r all networks not originating from inside the autonomous system.
What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network when usingthe "show ip bgp" command？（）A、The network was originated via redistribution of an interior gateway protocol into BGPB、The network was defined by a static routeC、The network was learned via IBGPD、The network was learned via EBGPE、The network was originated via a network or aggregate command
What is true regarding Autonomous Systems （AS ）？（）A、AS numbers are assigned by the IANAB、AS numbers are used by BGP （Border Gateway protocol ） to exchange IP routing information with neighboring ASC、In the internet， an Autonomous System （AS） is a collection of IP networks and routers under the controlD、All of the Above
What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network when using the "show ip bgp" c ommand?（）A、The network was originated via redistribution of an interior gateway protocol into BGP.B、The network was defined by a static route.C、The network was learned via IBGP.D、The network was learned via EBGP.E、The network was originated via a network or aggregate command.
BGP路由的半动态注入方式是指（）。A、在BGP协议中通过import命令引入IGP路由B、在BGP协议中通过network命令引入IGP路由C、在BGP协议中通过network命令引入静态路由D、在BGP协议中通过summary automatic聚合形成路由
You work as a network engineer for the company， you want to configure two BGP speakers to form an EBGP session across a firewall. On the engineer’s network， the firewall always permits TCP sessions that are initiated from the inside network （the network attached to the inside interface of the firewall）. What prerequisite is there for enabling BGP to run on this network？（）A、EBGP multihop will need to be configured for this to work.B、This should work with normal BGP peering， with no additional configuration on the BGP speakers or the firewall.C、The BGP protocol port must be opened on the firewallD、There is no way to make BGP work across a firewall.
Which three statements about BGP confederation and route reflectors are true？ （）A、Clusters are used in confederation schemes to avoid loops.B、BGP network can have a confederation within a route reflector area.C、An internal BGP network cannot have a route reflector within a confederation.D、An internal BGP network can have a route reflector within a confederation.E、Clusters are used in route reflector schemes to avoid loops.F、BGP network cannot have a confederation within a route reflector area.
As an experienced Network Engineer, you are responsible for network connectivity and system configuration. Which of the following protocols will be supported by Cisco Nonstop Forwarding (NSF)?（）A、ISSU，OSPF，IS-ISB、IETF，OSPF，ISSUC、IS-IS，EIGRP，SSO，BGPD、EIGRP，BGP，OSPF，IS-IS
During BGP configuration on a router that has peered with other BGP speakers, the BGP command aggregate-a ddress 172.32.0.0 255.255.252.0 is issued. However, the peers do not receive this aggregate network in BGP advertisements. Also, the router does not have this aggregate network in its BGP table. Which option indicates a possible reason this command did not cause the router to advertise the aggregate network to its peers?（）A、Interface NULL 0 is likely shutdown.B、The next hop IP address must be a loopback address.C、The BGP command no auto - summary is missing.D、The BGP command no synchronization is missing.E、Subnets of 172.32.0.0/22 do not exist in the BGP table.F、The IGP running on this router does not have network 172.32.0.0/22 installed.
A problem was reported that the 10.10.10.0/24 prefix was not injected into the local BGP table ona Company router named R1. The following information is available from this router： R1 Configuration： router bgp 65001 network 10.0.0.0 neighbor 172.16.1.1 remote-as 65002 no auto-summary Routing table information： show ip route | include 10 O 10.10.10.0/24 [110/11] via 192.168.1.1， 2d00h， Ethernet0/0 Why is this prefix not in the local BGP table of the R1？（）A、The 172.16.1.1 neighbor is down.B、The prefix 10.10.10.0/24 is not a ’connected’ routeC、This route is not a BGP learned routeD、The network command is wrongE、None of the other alternatives apply
When implementing BGP confederations, which configuration command establishes the globally unique AS number used with external peers outside your network?（）A、bgp confederation asB、bgp confederation systemC、bgp confederation remote-asD、bgp confederation identifier
单选题As an experienced Network Engineer, you are responsible for network connectivity and system configuration. Which of the following protocols will be supported by Cisco Nonstop Forwarding (NSF)?（）AISSU，OSPF，IS-ISBIETF，OSPF，ISSUCIS-IS，EIGRP，SSO，BGPDEIGRP，BGP，OSPF，IS-IS
多选题What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network in the show ip bgp command output？（）AThe network was originated via redistribution of an interior gateway protocol into BGPBThe network was defined by a static routeCThe network was originated via a network or aggregate commandDThe network was learned via EBGPEThe network was learned via IBGP
单选题路由器RTA的E0接口的IP地址为10.110.10.11，子网掩码为255.255.0.0，采用network半动态发布这条直连路由的命令为（）A[RTA-bgp]network 10.110.10.11 mask 255.255.255.0B[RTA-bgp]network 10.110.10.11 mask 255.255.255.255C[RTA-bgp]network 10.110.0.0 mask 255.255.0.0D[RTA-bgp]network 10.110.0.0 mask 0.0.255.255
单选题What technique should be used on BGP edge routers to prevent a multi - homed autonomous system from becoming a trans it system?（）AAdvertise with a high MED value all networks that are discovered via external BGP.BSet the no - export community attribute on all networks that are advertised externally.CRemove the AS - Path information on all routes in the BGP table pr ior to advertising externally.DSet the origin code to incomplete for all networks that are discovered via external BGP.EOnly advertise networks externally if they have been discovered via internal BGP.FUse an outgoing distribution list to filte r all networks not originating from inside the autonomous system.
单选题What is true regarding Autonomous Systems （AS ）？（）AAS numbers are assigned by the IANABAS numbers are used by BGP （Border Gateway protocol ） to exchange IP routing information with neighboring ASCIn the internet， an Autonomous System （AS） is a collection of IP networks and routers under the controlDAll of the Above
多选题What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network when using the "show ip bgp" c ommand?（）AThe network was originated via redistribution of an interior gateway protocol into BGP.BThe network was defined by a static route.CThe network was learned via IBGP.DThe network was learned via EBGP.EThe network was originated via a network or aggregate command.
单选题A problem was reported that the 10.10.10.0/24 prefix was not injected into the local BGP table on a PassGuide router named PG1.The following information is available from this router：PG1 Configuration：router bgp 65001network 10.0.0.0neighbor 172.16.1.1 remote-as65002no auto-summaryRouting table information：show ip route|include 10O10.10.10.0/24[110/11]via192.168.1.1，2d00h，Ethernet0/0Why is this prefix not in the local BGP table of thePG1（）AThe 172.16.1.1 neighbor is down.BThe prefix 10.10.10.0/24is not a’connected’route.CThis route is not a BGP learned route.DThe network command is wrong.ENone of the other alternatives apply
多选题Which three of the statements below correctly describe the characteristics of Autonomous Systems in routed networks?（）AWithin an AS, all routers must run either BGP or IBGP.BAn AS uses exterior gatew ay protocols (EGPs) to exchange information with other autonomous systems.CAn AS is a group of routers under the same technical administration.DWithin an AS, routes learned through BGP can be redistributed using interior gateway protocols.EWi thin an AS, routes learned through an interior protocol cannot be redistributed using BGP to other autonomous systems.
多选题What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network when usingthe "show ip bgp" command？（）AThe network was originated via redistribution of an interior gateway protocol into BGPBThe network was defined by a static routeCThe network was learned via IBGPDThe network was learned via EBGPEThe network was originated via a network or aggregate command