单项选择题 WhichchoicedescribestheJUNOSsoftwaredefaultpolicyactionforBGProutes？（）

单项选择题 Bydefault，towhichpeerswillaBGProuteradvertiserouteslearnedfromIBGPpeers？（）

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； }