220-801 · Question #957
A technician is tasked with adding a Barcode Scanner to a user PC. Which of the following would MOST likely be used to make the connection to the PC? (Select TWO).
The correct answer is B. Serial port C. USB. Barcode scanners have historically connected via serial (RS-232/COM) ports and have also widely adopted USB as the modern standard. USB is by far the most common current connection method due to its plug-and-play support and universal availability. Older legacy scanners may…
Question
A technician is tasked with adding a Barcode Scanner to a user PC. Which of the following would MOST likely be used to make the connection to the PC? (Select TWO).
Options
- ARJ-45
- BSerial port
- CUSB
- DDB-15
- EInfrared
How the community answered
(34 responses)- A3% (1)
- B94% (32)
- E3% (1)
Explanation
Barcode scanners have historically connected via serial (RS-232/COM) ports and have also widely adopted USB as the modern standard. USB is by far the most common current connection method due to its plug-and-play support and universal availability. Older legacy scanners may still use serial ports, which is why both are valid answers. RJ-45 is an Ethernet network connector. DB-15 is a VGA video connector. Infrared (IrDA) is a wireless protocol that was used for some peripherals but is not a standard or practical barcode scanner interface in enterprise or office environments.
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