单项选择题 Whichofthefollowingsoftwaredirectlyinteractswiththehardwareandhandleshardwareresource requestsfromvirtualmachines？（）

单项选择题 Aserverintheproductionenvironmentmonitorsoutputfromvarioussensorsalonganassembly line.Newequipmentisbeingaddedtothelinethatwillrequiremonitoring.Theserver administratorneedstoaddadditionalinputstotheserverforthisnewequipment.Whichofthe followinginputtypesisMOSTlikelyrequired？（）

单项选择题 A small push button typically found on the inside of a server case is MOST likely used for which of the following purposes?（）