The filter policy 2000 export is configured in the IS-IS process. Which of the following is wrong about the function of this command?

• A.This command will filter the link state information released to the outside world
• B.The routing entries generated by the device itself will be restricted from being released to the outside world
• C.If this command is not configured, the device will advertise all the routes imported by external routing protocols into IS-IS by default.
• D.It needs to be used in conjunction with route import, which is used to advertise only part of the imported external routes to neighbors.

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In a basic network layer data packet, which of the following information can be included? (Multiple choice)

• A.Network layer header
• B.Upper-level data
• C.Data link layer header
• D.Network layer tail

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What is the three-layer logical interface used to implement different VXLAN virtual network communication on the VXLAN L3 Gateway?

• A.NVE interface
• B.VI ANIF interface
• C.Layer 2 sub-interface
• D.VBDIF interface

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If the OSPF protocol is running on the network, configure the non-backbone area in the OSPP area as the LSA with the ls-id of 0.0.0.0 in the Totally Stub Totally Stub area. Which LSA does the LSA belong to?

• A.LSA5
• B.LSA1
• C.LSA2
• D.LSA3

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The correct description in the following of BGP loop protection is: (Multiple Choice)

• A.DBGP routers will not announce any updates from EBGP peers to their EBGP peers
• B.Non-RR BGP routers will not announce any update information from IBGP peers to other IBGP peers
• C.Through the AS-PATH attribute, discard any update information received from EBGP peers that contains its own AS number in the AS-PATH attribute
• D.Any routing information from IBGP peers will be advertised to other IBGP peers

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