单项选择题

Which of the following should be used to restrict access to a wireless network?（）

A. Port forwarding
B. Enable SSID broadcast
C. Wireless encryption
D. Enable DMZ

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单项选择题

After setting up a new computer, a user states that the mouse and keyboard will not work. Whichof the following is the MOST likely reason?（）

A. The network cable is disconnected
B. The PS/2 connectors are switched
C. The USB connectors are switched
D. The hard drive is unplugged

单项选择题

Windows XP mode on a Windows 7 Professional machine fails to load. Which of the following isMOST likely the cause?（）

A. The machine does not have enough processor cores to allow for this feature.
B. Virtualization support is not enabled in the BIOS.
C. A license of Windows XP must be purchased in order to use Windows XP Mode.
D. The machine does not have enough RAM to allow for this feature.

单项选择题

A single office with five computers and a server is an example of which of the following?（）

A.PAN
B.WAN
C.SAN
D.LAN