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Which of these network devices commonly convert analog sounds to digital signals?

A) Router

B) Repeater

C) Switch

D) Modem

E) It’s not an iPod, right?

The answer: D) Modem

A modulator/demodulator converts analog sounds sent over network connections or telephone lines into digital signals that your computer can understand.

Want to know more? Watch “Network Types.”

There’s more to networking than just Ethernet! In this video, you’ll learn about DSL, cable, satellite, fiber, dial-up, Bluetooth, and cellular networks.