One of your clients uses a wireless IrDA printer with her laptop. Which of these is a disadvantage of IrDA connections?
A) Won’t work when there’s no line-of-sight
B) Susceptible to interference from microwave ovens and other RFI
C) Does not work with all applications
D) Requires a mobile broadband connection
E) Gets frizzy when the humidity is high
The answer: A) Won’t work when there’s no line-of-sight
The Infrared Data Association (IrDA) standard uses infrared light to transmit data between devices. Unlike 802.11 wireless, the light used by IrDA must use a line-of-sight to maintain connectivity.
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Want to know more? Watch “Laptop Communications.”Today’s laptops employ many communications methods that use many different technologies. In this video, you’ll learn about Bluetooth, infrared, mobile broadband, Ethernet, and modems. |
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