19. An IT department submits a purchase order to buy a new computer from a vendor. Purchase orders are documents issued by buyers that indicate a purchase they want to make from a seller. Which stage of the hardware lifecycle does this scenario belong to?
20. An IT department uses a pre-used laptop out of their hardware inventory for a new user. Which stage of the hardware lifecycle does this scenario belong to?
22. Who works in the background to make sure a company’s IT infrastructure is always working and is constantly fighting to prevent IT disasters from happening?