单项选择题 Mike, a technician, is working on several workstations and needs to continuously investigatesystems so he knows when the workstations reboot. Which of the following commands could beused?（）

单项选择题 In which of the following locations could a technician restart the printer spooler?（）

单项选择题 Which of the following should be performed after a maintenance kit has been applied and fullfunctionality tested?（）