单项选择题
Which of the following is the FIRST step when troubleshooting an issue？（）
A.Identify the problem. B.Verify full system functionality. C.Document all findings. D.Establish a theory of probable cause.
单项选择题 Whichofthefollowingtechnologiesisspecificallydesignedtoincreaseserver virtualization performance？（）
单项选择题 WhichofthefollowinginternalstoragetechnologieshastheHIGHESTsingledrivestorage capacity？（）
单项选择题 Whichofthefollowingserverrolesprovidesacommontimetoallcomputers？（）
