单项选择题Which of the following RAID levels requires ONLY two drives and provides mirroring?()

A.RAID0
B.RAID1
C.RAID5
D.RAID10


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1.单项选择题Which of the following is BEST for providing network security?()

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

6.单项选择题Which of the following is the correct pin out for T568B?()

A. Orange/white, orange, green/white, blue, blue/white, green, brown/white, brown
B. Blue, blue/white, orange/white, orange, brown/white, brown, green/white, green
C. Green/white, green, orange/white, blue, blue/white, orange, brown/white, brown
D. Orange/white, orange, brown/white, brown, green/white, green, blue, blue/white

7.单项选择题Which of the following is a multimedia device?()

A. Biometric device
B. Mouse
C. Camcorder
D. Infrared scanner

8.单项选择题Which of the following cable types is 68-pin?()

A.Floppy
B.SCSI
C.IEE1394
D.IDE

9.单项选择题When upgrading BIOS firmware, which of the following limits are MOST commonly increased? ()

A. CPU
B. USB capacity
C. Optical drive
D. RAM