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Which three pre-conditions must be met before an OSPF router can perform graceful restart? （）
- A、Router must be an ABR.
- B、Router must contain one sham link.
- C、The network topology must be stable.
- D、Router must be able to forward packets.
- E、Neighbors must support graceful restart.
参考答案
更多 “Which three pre-conditions must be met before an OSPF router can perform graceful restart? （）A、Router must be an ABR.B、Router must contain one sham link.C、The network topology must be stable.D、Router must be able to forward packets.E、Neighbors must support graceful restart.” 相关考题
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Which three pre－conditions must be met before an OSPF router can perform graceful restart? ()
A. Router must be an ABR.B. Router must contain one sham link.C. The network topology must be stable.D. Router must be able to forward packets.E. Neighbors must support graceful restart.
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In JUNOS software, which statement is true regarding the OSPF advertisement of the loopback IP address on the ABR?()
A. When Area 0 is active, the loopback interface must be configured in OSPF for it to be advertised.B. When Area 0 is active, the loopback address is automatically advertised into other areas.C. When Area 0 is active, the OSPF router-id must match the loopback address for the loopback address to be advertised.D. When Area 0 is active, the router-id must be configured for the loopback address to be advertised.
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In order for computers with private IP addresses to access the public Internet, which of thefollowing must the router perform?()
A.NATB.BGPC.DHCPD.APIPA
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For a router to successfully redistribute routes between OSPF and EIGRP, which of the following are true?()
A. The router must have one routing protocol configured, but configuration for both routing protocols is not necessaryB. The router must hav e at least one working link connected to each routing domainC. The redistribute command must be configured under EIGRP to send the routes to OSPFD. The redistribute command should be configured under OSPF to take routes from EIGRP into OSPF
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Which of the following is true about an OSPF area border router (ABR)?()
A. The ABR must have multiple interfaces connected to the backbone areAB. An ABR is a router with two interfaces, each connected to a different nonbackbone areAC. The only requirement to be considered an ABR is at least one interface connected to the backbone areAD. An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
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Which statement is true about the command ipv6 ospf 1 area 0?()
A. It must be issued before the network command to enable the OSPF pr ocess for IPv6.B. It must be issued after the network command to enable the OSPF process for IPv6.C. It must be issued in router global configuration mode to enable the OSPF process for IPv6.D. It must be issued in interface configuration mode to ena ble the OSPF process for IPv6.
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Refer to the exhibit. When running EIGRP, What is required for RouterA to exchange routing updates with RouterC?()
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Which of the following are true of both OSPFv2 and OSPFv3?（）A、The method of choosing an OSPF router IDB、Verification checks that must be validated before two routers can become OSPF neighborsC、Support for route tagsD、Support for multiple instances per inter face
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When BGP is used as the PE-CE routing protocol, which of these statements is correct?（）A、On the CE router, PE neighbors must be configured in the VRF context on the CE routerB、On PE routers, the CE IBGP neighbors are configured in the global BGP configurationC、On PE routers, the CE EBGP neighbors are configured in the VRF contextD、A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router's other provider neighbors
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Which three pre-conditions must be met before an OSPF router can perform graceful restart？（）A、Router must be ABRB、Router must contain one sham link.C、The network topology must be stable.D、Router must be able to forward packets.E、Neighbors must support graceful restart.
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You are configuring the ERX Edge Router as an LNS in an L2TP network.Which statement is true about the value of the remote host parameter?（）A、It must be the same as the server-name parameter on the LACB、It must be the same as the client-name arameteron the LACC、It must be the same as the remote-hostname parameter on the LACD、It must be the same as the tunnel password parameter on the LAC
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Which condition must be met to allow a PE router to forward VPN traffic across a LSP in a Layer 3 VPN environment？（）A、The BGP next hop must be in inet.1.B、The BGP next hop must be in inet.3.C、Must have a bidirectional LSP configured.D、Must have a static route to allow an RP for connected interfaces.
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In PIM-SM what control plane signaling must a multicast source perform before it begins to send multicast traffic to a group？（）A、The source must send a PIM Register message to the rendezvous point （RP）B、The source must first join the multicast group using IGMP before sendingC、The source must perform a Request to Send （RTS） and Clear to Send （CTS） handshake with the PIM designated router （DR）D、No control plane signaling needs to be performed；the source can simply begin sending on the local subnet
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Which two of the following actions must an OSPF NSF-capable router execute after a supervisor engine switchover?（） (Choose two.)A、Re-learn the available OSPF neighbors with neighbor relationship restartB、Send the graceful restart messageC、Re-acquire the link state database content for the networkD、Re-learn the available OSPF neighbors without neighbor relationship restart
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Which three IP multicast group concepts are true？ （Choose three.） （）A、 If a packet is sent to a multicast group address， all members of the multicast group will receive itB、 If a packet is sent to a multicast group address， the multicast frame contains the source multicast addressC、 A router does not have to be a member of a multicast group to receive multicast data.D、 A router does not have to be a member of a multicast group to send to the group.E、 A router must be a member of a multicast group to receive multicast data.F、 A router must be a member of a multicast group to send to the group.
考题
Which of the following is true about an OSPF area border router (ABR)?（）A、The ABR must have multiple interfaces connected to the backbone areAB、An ABR is a router with two interfaces, each connected to a different nonbackbone areAC、The only requirement to be considered an ABR is at least one interface connected to the backbone areAD、An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
考题
For a router to successfully redistribute routes between OSPF and EIGRP, which of the following are true?（）A、The router must have one routing protocol configured, but configuration for both routing protocols is not necessaryB、The router must hav e at least one working link connected to each routing domainC、The redistribute command must be configured under EIGRP to send the routes to OSPFD、The redistribute command should be configured under OSPF to take routes from EIGRP into OSPF
考题
In order for computers with private IP addresses to access the public Internet, which of thefollowing must the router perform?（）A、NATB、BGPC、DHCPD、APIPA
考题
Which pre-conditions must be met before an OSPF router can perform graceful restart？（）A、Router must be ABRB、Router must contain one sham link.C、The network topology must be stable.D、Router must be able to forward packets.E、Neighbors must support graceful restart.
考题
多选题Which pre-conditions must be met before an OSPF router can perform graceful restart？（）ARouter must be ABRBRouter must contain one sham link.CThe network topology must be stable.DRouter must be able to forward packets.ENeighbors must support graceful restart.
考题
多选题Which three pre-conditions must be met before an OSPF router can perform graceful restart? （）ARouter must be an ABR.BRouter must contain one sham link.CThe network topology must be stable.DRouter must be able to forward packets.ENeighbors must support graceful restart.
考题
多选题Which three pre-conditions must be met before an OSPF router can perform graceful restart？（）ARouter must be ABRBRouter must contain one sham link.CThe network topology must be stable.DRouter must be able to forward packets.ENeighbors must support graceful restart.
考题
单选题Which statement is true about the command ipv6 ospf 1 area 0?（）A
It must be issued before the network command to enable the OSPF pr ocess for IPv6.B
It must be issued after the network command to enable the OSPF process for IPv6.C
It must be issued in router global configuration mode to enable the OSPF process for IPv6.D
It must be issued in interface configuration mode to ena ble the OSPF process for IPv6.
考题
单选题Which condition must be met to allow a PE router to forward VPN traffic across a LSP in a Layer 3 VPN environment？（）A
The BGP next hop must be in inet.1.B
The BGP next hop must be in inet.3.C
Must have a bidirectional LSP configured.D
Must have a static route to allow an RP for connected interfaces.
考题
单选题In PIM-SM what control plane signaling must a multicast source perform before it begins to send multicasttraffic to a group？（）A
The source must send a PIM Register message to the rendezvous point （RP）.B
The source must first join the multicast group using IGMP before sending.C
The source must perform a Request to Send （RTS） and Clear to Send （CTS） handshake with the PIM designated router （DR）.D
No control plane signaling needs to be performed； the source can simply begin sending on the local subnet.
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