单项选择题
A. Disable port forwarding on the router.
B. Reboot to Safe Mode and see if the Internet is accessible.
C. Format the machine and reinstall the OS.
D. Check the web browser’s proxy settings.
单项选择题 A technician is attempting to configure Windows XP Media Center on a desktop from a CD. The message that comes up on the screen says ‘Missing NTLDR press any key to reboot’. Which of the following should the technician do NEXT?（）
单项选择题 An office laser printer is printing lighter in random areas. Which of the following is the EASIEST solution to implement for this issue?（）
单项选择题 The technician has suspicions that a browser has been hijacked. Which of the following should the technician look for in this situation?（）