单项选择题
A Windows server’s backup jobs keep failing with an error message stating that the source drive is not available. After reviewing the logs， which of the following should a technician do FIRST to troubleshoot this issue？（）
A.Verify the backup media has enough storage space for the backup job B.Verify the volume shadow copy service is running C.Close all terminal services sessions on the server D.Reboot the Windows server and re-run the backup job
单项选择题 WhichofthefollowingBESTdescribesservervirtualization？（）
单项选择题 Whichofthefollowingvirtualizationtechnologiescansavetimeduringprovisioning？（）
多项选择题 Whichofthefollowingarestoragetechnologiesthatcanbehotswappable？（）
