多项选择题
A.OSPF topology table
B.OSPF interface table
C.OSPF routing information base
D.OSPF link-state database
E.OSPF adjacency table
F.OSPF neighbor table
多项选择题 Whichofthefollowingproceduresareinvolvedintherecommendedthree-steptroubleshootingflow？（Choosethebestthreeanswers.）（）
单项选择题 WhichofthefollowingvirtualMACaddressesiscorrectfortheHSRPgroup22？（）
多项选择题 Whichofthefollowingareconsideredsubcomponentsoftheproblemdiagnosisstepofthetroubleshootingflow？（Chooseallthatapply.）（）