220-801 · Question #1013
Which of the following connection types uses an analog signal as a carrier to send and receive data?
The correct answer is B. Dial-up. Dial-up internet uses the traditional Public Switched Telephone Network (PSTN), which carries analog audio signals. A modem (modulator-demodulator) converts digital data into analog tones for transmission and demodulates incoming analog signals back to digital data. Cellular…
Question
Which of the following connection types uses an analog signal as a carrier to send and receive data?
Options
- ACellular
- BDial-up
- CSatellite
- DWiMAX
How the community answered
(37 responses)- A3% (1)
- B89% (33)
- C5% (2)
- D3% (1)
Explanation
Dial-up internet uses the traditional Public Switched Telephone Network (PSTN), which carries analog audio signals. A modem (modulator-demodulator) converts digital data into analog tones for transmission and demodulates incoming analog signals back to digital data. Cellular, satellite, and WiMAX all use digital radio frequency signals, not analog carriers.
Topics
Community Discussion
No community discussion yet for this question.