单项选择题 A technician has had several support requests for one PC. The technician has reseated the PCIcards and replaced the hard drive in the PC located in a school cafeteria kitchen. PCs located in the business office or the classrooms have not had this issue. Which of the following is MOST likely causing this PC’s issue?（）

单项选择题 A company printer is used to print payroll checks on paper forms with carbon backing. Which ofthe following is the BEST type of printer for this scenario?（）

单项选择题 Which of the following Internet technologies has the slowest potential upload speed due toinherent latency issues?（）