单项选择题
A service technician suspects the fuser assembly needs to be replaced. Which of the following is MOST likely the type of printer being repaired? （）
A.Inkjet
B.Laser
C.Impact
D.Thermal
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Which of the following RAID levels requires ONLY two drives and provides mirroring?（）
A.RAID0
B.RAID1
C.RAID5
D.RAID10 -
单项选择题
Which of the following is BEST for providing network security?（）
A.Firewall
B.DMZ
C.Switch
D.IDS -
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
