BGP routing strategy can control the distribution and reception of routes.

• A.TRUE
• B.FALSE

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EGP authentication can prevent illegal routers from establishing neighbors with BCP routers. BCP authentication can be divided into MD5 authentication and Keychain authentication. Which of the following BGP messages will carry BCGP Keychain authentication information? ((Multiple choice)

• A.Open
• B.Keepalive
• C.Notification
• D.Update

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Regarding the label space of MPLS, the description is wrong:

• A.16~1023is staticLSPand staticCR-LSPshared tab space
• B.If the out tag value is0,The router will directly discard the packet
• C.1024Above areLDP,RSVP-TE. MP-BGPLabel space shared by other dynamic signaling protocols
• D.penultimate jumpLSRWhen performing label exchange, if the exchanged label value is found to be3,By default, the label is popped and the message is sent to the last hop

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By executing the () command, users on different ports of the same VLAN can be completely isolated at Layer 2 and Layer 3 and cannot communicate. (Please use English lowercase letters to complete the command, and the command cannot be abbreviated)

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As shown in the figure, a park has deployedIPv6For business testing, the network has4router. run 0SPFV3Realize network interconnection. about theOSPFV3network generated LSA. Which of the following statement it's wrong?

• A.R1ofLSDBhaveR3producedNetwork LSA. illustrateR3may be from this linkDR
• B.R2asA, BRWill produceInter-Area-Prefix-LSAdescribeArea 1ofIPv6address prefix, and advertise GiveR1andR3
• C.R1will produceRouter-LSADescribing the device interface information will be received at the same timeR2andR3produced Router-LSA
• D.R1will receiveR2produced2indivualLink-LSA. Describe separatelyR2Information about the two links connected

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