Which networking type uses light to communicate?

November 19, 2009



Which network method uses light to communicate between devices?

A) 802.11

B) Ethernet

C) IrDA

D) DSL


The answer: C) IrDA

The Infrared Data Association standard uses infrared light to network devices together. The distance between devices is relatively short, and there must be a line-of-sight between infrared transmitters/receivers.

Want to know more? Watch “Network Topologies.”

Networks come in many different shapes and sizes. In this video, we’ll discuss the differences in Ethernet, WAN, and Token Ring topologies, and learn about the differences in client/server, peer to peer, and Windows Domain-based technologies. We’ll also take a tour through the myriad wired and wireless technologies, including ISDN, DSL, infrared, Bluetooth, and mobile wireless networks.

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Category: CompTIA A+ Pop Quizzes

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