单项选择题 Whichscriptisexecutedduringsystemstartuptosetthesystemhostname，defaultgatewayandstaticroutes？（）

单项选择题 Whichofthefollowingcommandsshouldbeusedtoviewandchangethenetworkfilesystemtuningparametersavailableonthesystem？（）

单项选择题 An  administrator  is  attempting  to  update  a  software  product.  The  install  is  interrupted  by  a  system  failure.  Which of the following commands would be used to clean up the improperly applied filesets（）