单项选择题

When using OSPF as your IGP， which operational command must be enabled to populate the TED for CSPF calculations？（）

A.cspf enable
B.disable no-cspf
C.traffic-engineering
D.enable traffic-engineering-database

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多项选择题

Given the community：
communitymy-company members "^[1-3]*7：666$"；
Which four communities does this expression match？（）

A.17：666
B.17：667
C.27：666
D.37：666
E.47：666
F.777：666
G.117：666

单项选择题

A.IBGP peers
B.EBGP peers
C.Active BGP peers
D.Established BGP peers

单项选择题

A.all BGP peers
B.all IBGP peers
C.all EBGP peers
D.all MBGP peers