单项选择题
Which of the following commands would be used to verify the integrity of critical system files?（）
A.verify
B.nslookup
C.sfc
D.chkdsk
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Which of the following Microsoft encryption software provides the HIGHEST level of security for PCs running Windows Vista Enterprise or Ultimate Vista?（）
A. NTFS
B. Windows Defender for Vista
C. BitLocker drive encryption
D. EFS -
单项选择题
Jill, a technician, is installing several PCs in a home that is pre-wired with Ethernet to seven rooms. In the wiring closet all the Ethernet cables are hanging free and are not labeled. Which of the following tools would the technician use to locate the cable that runs to each room?（）
A. Extension magnet
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C. Multimeter
D. Optical Time Domain Reflectometer (OTDR) -
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On which of the following hard drive types must Bob, a technician, change the jumper setting to match the motherboard/cabling combination?（）
A.SATA
B.eSATA
C.Solid state
D.PATA
