A. DVD-DLB. CD-RWC. CD-RD. DVD-RWhich of the following ……

单项选择题A Windows 7 user has documents spread throughout multiple hard drives and wishes to organizeand search them in one panel. Which of the following features should they be shown?（）

A. Windows Explorer
B. My documents
C. Windows Desktop Search 4.0
D. Libraries

单项选择题Users in an office routinely work with large graphics files. Which of the following preventivemaintenance tools can assist in maintaining system performance?（）

A.FPROT
B.DEFRAG
C.CHKDSK
D.SFC

单项选择题A user reports that their touchpad no longer works on their laptop. Which of the following is the FIRST troubleshooting step?（）

A. Plug in USB keyboard
B. Check for a disable switch
C. Contact the laptop manufacturer
D. Plug in a USB mouse

单项选择题A user reports that their hard drive has failed and needs to be replaced. Which of the following should the technician do FIRST?（）

A. Run the hard disk manufacturer’s diagnostic program
B. Re-image the drive
C. Replace the hard drive and load Windows
D. Ask the user diagnostic questions

单项选择题A memory type typically used in high end workstations and not generally found in consumer gradePCs is:（）

A.ddR3.
B.ecc.
C.pc2-6400.
D.ddR2-667.