多项选择题 WhichtwoofthesestepsareminimumrequirementstoconfigureOSPFv3underIPv6？（）
单项选择题 TwoBGPpeersconnectedthrougharoutedfirewallareunabletoestablishapeeringrelationship.Whatcouldbethemostlikelycause？（）
单项选择题 AnetworkiscomposedofseveralVRFs.ItisrequiredthatVRFusersVRF_AandVRF_BbeabletoroutetoandfromVRF_C，whichhostssharedservices.However，trafficmustnotbeallowedtoflowbetweenVRF_AandVRF_B.Howcanthisbeaccomplished？（）