单项选择题
A.Firewall B.DMZ C.Switch D.IDS
A home user working outside an office reports that thei...
单项选择题A home user working outside an office reports that their laptop is no longer connecting to theInternet. Which of the following would a technician recommend to check FIRST?（）
A. Windows Firewall settings B. DHCP settings C. Disable HomeGroup D. Wireless on/off switch
A technician has a PC that has no Internet connection. ...
单项选择题A technician has a PC that has no Internet connection. The IP address for the PC is 169.254.XXX.XXX. Which of the following should be checked FIRST?（）
A. DHCP settings B. BIOS settings C. DNS settings D. Power settings
A technician installs a new sound card but no sound can...
单项选择题A technician installs a new sound card but no sound can be heard. Which of the following utilities can be used to see an error?（）
A. MSCONFIG B. Device Manager C. DXDIAG D. REGEDIT
