单项选择题 The technician is moving a user’s files from a Windows XP PC to a Windows Vista PC. Which of the following directories corresponds to each operating system?（）

单项选择题 The technician needs to map a network share to the user’s Windows 7 computer from thecommand prompt. Which of the following commands will the technician execute?（）

单项选择题 Which of the following is a sign that a computer has been infected by a worm?（）