多项选择题

Which of the following should be configured on a wireless router to enhance security? (Select TWO).（）

A. Disable DHCP
B. Change wireless channel
C. Disable SSID broadcasting
D. Change the default username and password
E. Use a static IP address

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单项选择题

A user installs a laser jet printer on a Windows XP desktop. The user states that Windows XPgeneric printer drivers were used. When the user prints a document, the pages are printing out with random symbols, letters, and numbers. Which of the following should the technician do?（）

A. Download manufacturer printer drivers
B. Restart the printer spooler
C. Check for Microsoft Windows updates
D. Check Device Manager

单项选择题

After Microsoft Windows boots, a message appears stating that a service failed to start. Which of the following can be used to find more information about this error?（）

A. Disk Manager
B. Control Panel
C. Start Menu
D. Event Viewer

单项选择题

A virus scanner is running on a computer and scans all files currently in use. Why should a full scan be performed periodically?（）

A. Files not accessed recently may contain a virus.
B. A full scan optimizes all files on the hard drive.
C. A full scan resets the archive bit on the file.
D. Active antivirus software only scans the C:\WINDOWS directory.