Which extension to the OSPFv2 protocol supports traffic engineering？（）

单项选择题WhenusingOSPFasyourIGP，whichoperationalcommandmustbeenabledtopopulatetheTEDforCSPFcalculations？（）

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

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WhichchoicedescribestheJUNOSsoftwaredefaultpolicyactionforBGProutes？（）

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

单项选择题Bydefault，towhichpeerswillaBGProuteradvertiserouteslearnedfromIBGPpeers？（）

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

单项选择题Which action occurs when the policy main-policy evaluates the BGP route 10.0.55.2 32？（） [edit policy-options]  policy-statement test { from {  route-filter10.0.0.016 orlongeraccept；  route-filter10.0.67.0 24orlangerreject；  route-filter10.0.0.0 8orlanger；  }  then {  metric10；  community add no-advertise；  accept；  }  }  policy-statement main-policy {  term only-want-certain-routes {  from {  policytest；  }  then {  communityadd harry-402；  accept；  }  }  }  communityno advertise members no-advertise；  communityharry-402 members 666：402；  [edit protocols]  bgp {  exportmain-policy； }

A.The route is not advertised into BGP
B.The route is advertised into BGP with community harry-402.
C.The route is advertised into BGP with community no-advertise.
D.The route is advertised into BGP with community harry-402 and no-advertise.