問答題what is multicast snooping?

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4.單項(xiàng)選擇題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.

5.單項(xiàng)選擇題This question is about the formation of OSPF adjacency. An OSPF adjacency will not form correctly across a point-to-point link in the same area. Which would most likely cause this problem?()

A.Each interface has a different OSPF cost.
B.Each interface is configured with secondary addresses as well as primary addresses.
C.Each interface has a different MTU size.
D.Each interface is configured with theip unnumbered loopback 0 command.

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A network administrator is troubleshooting the OSPF configuration of routers R1 and R2.The routers cannot establish an adjacency relationship on their common Ethernet link.The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2.Based on the information in the graphic,what is the cause of this problem?()

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兩ebgp鄰居發(fā)路由過來 ,哪些屬性重置?

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When upgrading the IOS image,the network administrator receives the exhibited error message.What could be the cause of this error?()

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As a CCNA candidate,you must have a firm understanding of the IPv6 address structure.Refer to IPv6 address,could you tell me how many bits are included in each filed?()

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Refer to the exhibit.The network administrator is in acampus building distant from Building B.WANRouter is hosting a newly installed WAN link on interface S0/0.The new link is not functioning and the administrator needs to determine if the correct cable has been attached to the S0/0 interface.How can the administrator accurately verify the correct cable type on S0/0 in the most efficient manner?()

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Local Preference?

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Refer to the exhibit.What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown?()

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four switches, which one will be root switch.(no pic).

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aaa架構(gòu)中哪個(gè)是要求用戶輸入用戶名和密碼?

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How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?()

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