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單項(xiàng)選擇題

Which of the following is BEST for providing network security?（）

A.Firewall
B.DMZ
C.Switch
D.IDS

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單項(xiàng)選擇題

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

單項(xiàng)選擇題

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

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