单项选择题
In which Cisco IOS configuration mode is the route distinguisher （RD） configured？（）
A.R1（config-route-at）#
B.R1（config-route-map）#
C.R1（config-it）#
D.R1（config-vrf）#
E.R1（config）#
F.R1（router）#
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相关考题
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多项选择题
WhichtwostatementsaboutMPLSpoint-to-multipointtrafficengineering（P2MPTE）aretrue？（）
A.P2MP TE uses an OSPF extension that is different from the OSPF extension that is used in P2P TE
B.Loose path is not supported in P2MP TE
C.Multiple IP multicast groups can map to one P2MP tunnel
D.Affinity is not supported in P2MP TE
E.P2MP TE uses Constrained Shortest Path First （CSPF） to calculate paths -
单项选择题
WhichstatementaboutATMAAL5overMPLSistrue？（）
A.It supports ATM signaling.
B.It supports traffic shaping of packets in MPLS to the ATM path.
C.It supports ATM switched virtual circuits
D.It supports fragmentation and reassembly.
E.It supports AAL5 SDU switching -
单项选择题
IntheCiscoResilientEthernetProtocol（REP），howmanyportsarealwaysblocking？（）
A.zero
B.at least one
C.at least two
D.at least four
E.at least three
