A.Applytheupdateswithoutcommitting.
B.Committhenewupdatestobecertainthereisnochangeafterthenextreboot.
C.Updateonefilesetatatimeandtesttoensurethatitworksbeforeupdatingthenextfileset.
D.Noactionisnecessarysincethesoftwarecanalwaysbeuninstalledandre-installed.
参考答案：A
