单项选择题 A support technician wants to help a user, in a different city, navigate a new software program. Which of the following will allow the user and technician to view and control the Windows XP PC desktop simultaneously?（）

单项选择题 A user’s document will not print, and as a result sends the same print job several times to the printer. A technician notices that the print queue is still waiting for the first job to finish before printing successive jobs. Which of the following would BEST resolve this issue?（）

单项选择题 A technician has a laptop in for repair with a consistent video corruption issue. The issue is seen on the local display and on an external monitor. The issue happens on the BIOS setup screen as well as within Windows. Which of the following laptop components is MOST likely failing?（）