单项选择题 A color laser printer is producing pages where the ink smears when touched. Which of thefollowing components should be replaced?（）

单项选择题 Core files required for user applications are stored in which of the following locations?（）

单项选择题 A technician is preparing user education to raise awareness of malware. The technician’s goal is to increase user awareness and prevent the future spread of malware. All of the following are malware symptoms EXCEPT:（）