单项选择题
A. Client IP
B. Proxy IP
C. Client and proxy IP
D. Neither client nor proxy IP
多项选择题 WhentestingICMPaccesstoafunctionalload-balancingACEVIP，itfails.Whatisthereasonofthisproblem？（）
多项选择题 ApplicationControlEngine（ACE）cancheckthehealthofserversandserverfarmsbyconfiguringhealthprobes（whicharesometimesreferredtoaskeepalives）.Aprobecanbeoneofmanytypes.WhicharevalidACEprobes？（）
多项选择题 Serverloadbalancing（SLB）istheprocessofdecidingtowhichserveraload-balancingdeviceshouldsendaclientrequestforservice.WhichpredictorsaresupportedonACEinordertoselectthebestservertofulfillaclientrequest？（）