Go back to 220-601 - CompTIA A+ Essentials Certification Exam (2006)

Question :-

After a technician physically installs a bar code reader, which of the following is the NEXT step?
Program the reader to recognize the required code systems.
Reinstall the operating system to add support for bar code readers.
Adjust the light wavelength.
Test the reader by typing commands from the keyboard.

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