单项选择题

Which Cisco IOS command displays the export VPN route target value of a VRF？（）

A.show ip vrf all
B.show ip vrf route-targets all
C.show ip vrf summary
D.show ip vrf interfaces
E.show ip vrf detail
F.show ip vrf

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多项选择题

Which three statements about OSPF partial SPF are true？（）

A.If it is triggered by Type 4， all Type 4 LSAs that announce a certain ASBR and all Type 5 and 7 LSAs are processed
B.If it is triggered by Types 5 and 7， all Type 5 and 7 LSAs that contribute to a certain destination are processed.
C.If it is triggered by Type 2， all Type 2 LSAs that contribute to a certain destination are processed.
D.If it is triggered by the change of Type 3， 4， 5， and 7 LSAs.
E.If it is triggered by the change of Type 2， 3， 5， and 7 LSAs

多项选择题

Which four statements about NetFlow are true？（）

A.NetFlow records bidirectional IP traffic flow.
B.NetFlow export can be implemented over IPv4.
C.NetFlow export can be implemented over IPv6.
D.NetFlow records multicast IP traffic flow.
E.NetFlow records ingress traffic.
F.NetFlow records egress traffic.

单项选择题

Which statement about PIM sparse mode operations is true？（）

A.It does not support all underlying unicast routing protocols like BGP
B.Receivers are registered with RP by their first hop router
C.From the RP， traffic flows down a source tree to each receiver.
D.It supports shared trees only， and assumes all hosts want the multicast traffic
E.Receivers are joined to the shared tree by their local designated router