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21. 

What's the best way to prevent damaging your PC with static electricity?
A. place your PC on a rubber mat
B. wear leather soled shoes
C. periodically touch a safe ground point on the PC to discharge yourself
D. static electricity doesn't really hurt a PC
E. wear an ESD wrist strap
22. 

What is the highest binary number that can be referred to on a three position jumper block?
A. 4
B. 6
C. F
D. 1
E. None of the above
23. 

During boot-up, the memory test:
A. Is a superfluous step that should be ignored
B. Checks and verifies that contiguous memory is installed
C. Is an operational error
D. Displays what memory is installed, but nothing else
E. None of the above
24. 

IRQ6 is typically reserved for:
A. The floppy
B. The keyboard controller
C. LPT2
D. The modem
E. None of the above
25. 

Which would you do first when troubleshooting a faulty monitor?
A. Check its connections to the computer and power source
B. Use a meter to check the CRT and internal circuitry for continuity
C. Power down the monitor, then turn it on again to see if that corrects the problem
D. Power down the computer, then turn it on again to see if that corrects the problem
E. None of the above