单项选择题 A technician has installed a new motherboard in a workstation, but after hardware tests, themotherboard has failed. Which of the following should the technician do FIRST before replacingthe motherboard? （）

单项选择题 The security team has implemented new guidelines on how to handle sensitive information storedon workstations based on a past incident involving information found on donated workstations.Which of the following should be completed by technicians before donating the workstations?（）

单项选择题 A user is trying to connect a mobile IR printer to a mobile device with no success. Which of the following is the MOST important when printing to an IR printer?（）