How many volts does a power supply’s 4...

单项选择题How many volts does a power supply’s 4-pin Molex connector carry to internal devices?（）

A. 2.5 volts
B. 5 volts
C. 6 volts
D. 15 volts

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1.单项选择题Which of the following is true when Bob, a technician, is setting default security permissions on a folder?（）

A. There are no significant changes to other files.
B. The created folder inherits the most restrictive permissions within the folder.
C. The permissions are inherited by all files and folders within that folder.
D. All folders within that folder are given a restrictive password.

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2.单项选择题 It is a company’s policy to shut down all workstations at the end of the day. However, the majority of employees are leaving disks in their workstations and upon start up the next morning they are receiving a ‘NTLDR is missing’ error.
Which of the following is a possible solution?（）

A. Make a daily announcement to remove all disks before departing for the day.
B. Change the Boot order in the BIOS.
C. Make it a part of the evening checks to ensure all disks are removed.
D. Make a company policy that states that it is unlawful to leave disks in the machines.

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3.单项选择题A user reports that after configuring the BIOS to boot to the hard drive first, the system still tries to boot from the optical drive. Which of the following is the MOST likely cause?（）

A. Optical drive
B. Power supply
C. CMOS battery
D. CD-ROM disk

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4.单项选择题Which of the following wireless standards uses the 5GHz frequency?（）

A.802.11g
B.802.2
C.802.11a
D.802.3

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5.单项选择题Which of the following will cause a ghost image on a printout?（）

A. Problem with the developing drum
B. Problem with the formatter board
C. Worn pickup rollers
D. Scanner unit is defective

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6.单项选择题Which of the following commands would a technician use to view the active applicationconnections on a local PC to the network?（）

A.ipconfig
B.netstat
C.nslookup
D.net use

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7.单项选择题Which of the following protocols uses port 443 by default?（）

A.LDAP
B.SNMP
C.HTTPS
D.HTTP

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8.单项选择题A user has discovered that even though they are using the latest version of the anti-virus software,the computer is still being infected by a virus. Which of the following is the BEST solution for this problem?（）

A. Replace the computer.
B. Run chkdsk /f.
C. Update the virus signatures.
D. Run scandisk.

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9.多项选择题Operating system files for Windows Vista and Windows XP are located in which of the following?（）(Select TWO).

A. C:\documents and settings\administrator
B. C:\windows\system
C. C:\users\system 32
D. C:\winnt
E. C:\windows

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10.单项选择题A user reports the system runs fine for a few minutes and then freezes or locks up. Which of the following is the BEST cause of this issue?（）

A. Memory is bad or not seated.
B. Fans are failing.
C. Power supply needs to be replaced.
D. CD-ROM is faulty and needs to be replaced.

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