单选题Which configuration command allows the ERX Edge Router to perform Unicast Reverse Path Forwarding lookups on all packets received on an IP interface?（）Aip sa-validateBip split-horizonCip access-routesDip filter-options
单选题
Which configuration command allows the ERX Edge Router to perform Unicast Reverse Path Forwarding lookups on all packets received on an IP interface?（）
A
ip sa-validate
B
ip split-horizon
C
ip access-routes
D
ip filter-options
参考解析
解析：
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相关考题：
Which configuration command allows the ERX Edge Router to perform Unicast Reverse Path Forwarding lookups on all packets received on an IP interface?() A. ip sa-validateB. ip split-horizonC. ip access-routesD. ip filter-options
Which RIP configuration command allows the ERX Edge Router to send Unicast updates to configured neighbors?() A.neighborB.unicast-neighborC.triggered-updateD.passive-interface
Refer to the exhibit. Which statement is co rrect regarding the router configuration shown? () A. The router will rebroadcast any DHCP requests received by this interface out to all interfaces included in the ip helper - address commands.B. The router will rebroadcast any UDP broadcasts received by this interface out to all interfaces included in the ip helper - address commands.C. The router will unicast any DHCP requests received by this interface out to all addresses included in the ip helper - address commands.D. This configuration will not do anything because the ip helper - address command needs to also be applied to the 192.168.23.1 IP address.
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Which two statements are true about Unicast Reverse Path Forwarding Loose Mode？（）A、It is used in multihome network scenarios.B、It can be used with BGP to mitigate DoS and DDoS.C、It does not need to have CEF enabled.D、It is enabled via the interface level command ip verify unicast reverse-path.E、It cannot be used with "classification" access lists.
If an edge Label Switch Router （LSR） is properly configured，which three combinations are possible？（）A、A received IP packet is forwarded based on the IP destination address and the packet is sent as an IP packet.B、An IP destination exists in the IP forwarding table. A received labeled packet is dropped because the label is not found in the LFIB table.C、There is an MPLS label-switched path toward the destination. A received IP packet is dropped because the destination is not found in the IP forwarding table.D、A received IP packet is forwarded based on the IP destination address and the packet is sent as a labeled packet.E、A received labeled IP packet is forwarded based upon both the label and the IP address.F、A received labeled packet is forwarded based on the label. After the label is swapped，the newly labeled packet is sent.
Which of these statements accurately identifies how Unicast Reverse Path Forwarding can be employed to prevent the use of malformed or forged IP sources addresses？（）A、It is applied only on the input interface of a router.B、It is applied only on the output interface of a router.C、It can be configured either on the input or output interface of a router.D、It cannot be configured on a router interface.E、It is configured under any routing protocol process.
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Which configuration command allows the ERX Edge Router to perform Unicast Reverse Path Forwarding lookups on all packets received on an IP interface?（）A、ip sa-validateB、ip split-horizonC、ip access-routesD、ip filter-options
Which two statements about forwarding equivalence class （FEC） are true？（）A、FEC might correspond to a destination IP subnet， but it might also correspond to any traffic class that the edge LSR considers significant.B、FEC is a group of IP packets that is forwarded over a different path， but with the same forwarding treatment.C、FEC is a group of IP packets that is forwarded over the same path， and with the same forwarding treatment.D、FEC is a group of IP packets that is forwarded over a different path， but with the different forwarding treatment.E、FEC is a group of IP packets that is forwarded over the same path， but with a different forwarding treatment
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What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?（）A、defines the source IP address that is used in all broadcast packets on DLCI 202B、defines the DLCI that is used for all packets that are sent to the 192.168.1.2 IP addressC、defines the destination IP address that is used in all broadcast packets on DLCI 202D、defines the DLCI on which packets from the 192.168.1.2 IP address are received
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Unicast Reverse Path Forwarding can perform all of these actions except which one？（）A、examine all packets received to make sure that the source addresses and source interfaces appear in the routing table and match the interfaces where the packets were receivedB、check to see if any packet received at a router interface arrives on the best return pathC、combine with a configured ACLD、log its events，if you specify the logging options for the ACL entries used by the unicast rpf commandE、inspect IP packets encapsulated in tunnels， such as GRE
Which command is used to see the path taken by packets across an IP network?（）A、show ip routeB、show routeC、tracerouteD、trace ip route
The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command（）。A、This command should be executed from the global configuration modeB、The IP address 10.121.16.8 is the local router port used to forward dataC、102 is the remote DLCI that will receive the informationD、This command is required for all Frame Relay configurationsE、The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC
Which RIP configuration command allows the ERX Edge Router to send Unicast updates to configured neighbors?（）A、neighborB、unicast-neighborC、triggered-updateD、passive-interface
单选题Which RIP configuration command allows the ERX Edge Router to send Unicast updates to configured neighbors?（）AneighborBunicast-neighborCtriggered-updateDpassive-interface
单选题Which of these statements accurately identifies how Unicast Reverse Path Forwarding can be employed to prevent the use of malformed or forged IP sources addresses？（）AIt is applied only on the input interface of a router.BIt is applied only on the output interface of a router.CIt can be configured either on the input or output interface of a router.DIt cannot be configured on a router interface.EIt is configured under any routing protocol process.
单选题The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command（）。AThis command should be executed from the global configuration modeBThe IP address 10.121.16.8 is the local router port used to forward dataC102 is the remote DLCI that will receive the informationDThis command is required for all Frame Relay configurationsEThe broadcast option allows packets, such as RIP updates, to be forwarded across the PVC
单选题What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?（）Adefines the source IP address that is used in all broadcast packets on DLCI 202Bdefines the DLCI that is used for all packets that are sent to the 192.168.1.2 IP addressCdefines the destination IP address that is used in all broadcast packets on DLCI 202Ddefines the DLCI on which packets from the 192.168.1.2 IP address are received
单选题What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?（）Adefines the source IP address that i s used in all broadcast packets on DLCI 202Bdefines the DLCI that is used for all packets that are sent to the 192.168.1.2 IP addressCdefines the destination IP address that is used in all broadcast packets on DLCI 202Ddefines the DLCI on which packets from the 192.168.1.2 IP address are received
单选题Unicast Reverse Path Forwarding can perform all of these actions except which one？（）Aexamine all packets received to make sure that the source addresses and source interfaces appear in the routing table and match the interfaces where the packets were receivedBcheck to see if any packet received at a router interface arrives on the best return pathCcombine with a configured ACLDlog its events，if you specify the logging options for the ACL entries used by the unicast rpf commandEinspect IP packets encapsulated in tunnels， such as GRE
单选题Which command is used to see the path taken by packets across an IP network?（）Ashow ip routeBshow routeCtracerouteDtrace ip route
多选题Which two statements are true about Unicast Reverse Path Forwarding Loose Mode？（）AIt is used in multihome network scenarios.BIt can be used with BGP to mitigate DoS and DDoS.CIt does not need to have CEF enabled.DIt is enabled via the interface level command ip verify unicast reverse-path.EIt cannot be used with classification access lists.