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多项选择题

Which three statements about the route target （RT） are true？ （）

A.The RT is a BGP extended community.
B.The RT is an 8-byte field that is prefixed to an IPv4 address to make it a unique VPNv4 address.
C.When a VPN route that is learned from a CE router is injected into BGP， one or more RTs are associated with it
D.The distribution of VPN routing information is controlled through the use of VPN RTs
E.When a VPN route that is learned from a CE router is injected into BGP， there is always one RT that is associated with it.

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热门试题

多项选择题WhichthreeofthesearetypesofEthernetVirtualConnections（EVCs）intheMEFconcept？（）

A.rooted multipoint EVC （E-Tree）
B.point-to-point EVC （E-Line）
C.point-to-multipoint EVC （E-Tree）
D.hub spoke EVC （E-Tree）
E.multipoint-to-multipoint EVC （E-LAN）

单项选择题CiscoIOSXRhasimplementedanonstoproutingfeaturesothatwhenRPfailoveroccurs，theroutinginformationcanberecoveredlocally.WhichprotocoldoesnotsupporttheNSRfeature？（）

A.OSPF
B.LDP
C.BGP
D.IS-IS
E.RSVP

单项选择题WhichstatementaboutFrameRelayisnottrue？（）

A.Static mapping is used when the remote router does not support Inverse ARP.
B.Frame Relay Inverse ARP requires LMI capability to construct an address to the DLCI mapping tableon the router.
C.Frame Relay Inverse ARP is disabled by default in Cisco IOS Software for all protocols that areenabled on the physical interface.
D.Inverse ARP does not work when LMI is disabled.
E.Frame Relay provides forward and backward congestion notification messages

多项选择题Option10CisanimplementationofInter-ASMPLSVPN.WhichtwostatementsaboutOption10Caretrue？（）

A.Great scalability is offered
B.Route Target Rewrite must be configured on ASBRs
C.Multihop EBGP is utilized between route reflectors
D.Multihop EBGP is utilized between ASBRs
E.The ASBRs hold VPNv4 routes

单项选择题WhichstatementabouttheCiscoMPLSTEFastReroute（FRR）nodeprotectionoperationisnotcorrect？（）

A.It requires a next-next hop backup tunnel.
B.Point of local repair （PLR） swaps the next hop label and pushes the backup label.
C.The backup tunnel terminates on the merge point （MP） where traffic rejoins the primary tunnel.
D.The backup tunnel can have associated bandwidth capacity.
E.Restoration time is expected under 50 ms.