220-801 · Question #73
Which of the following Internet connections commonly utilize an analog phone line? (Select TWO).
The correct answer is D. Dial-up F. DSL. Dial-up and DSL both transmit data over standard analog PSTN (Public Switched Telephone Network) phone lines, distinguishing them from wireless or cable-based broadband technologies.
Question
Options
- ASatellite
- BWiMAX
- CCellular
- DDial-up
- ECable
- FDSL
How the community answered
(44 responses)- B2% (1)
- D95% (42)
- E2% (1)
Why each option
Dial-up and DSL both transmit data over standard analog PSTN (Public Switched Telephone Network) phone lines, distinguishing them from wireless or cable-based broadband technologies.
Satellite internet uses radio signals transmitted to and from orbiting satellites and does not use phone lines.
WiMAX is a wireless broadband standard that uses licensed radio spectrum and base stations, not analog phone lines.
Cellular internet uses mobile radio networks (3G/4G/5G) over licensed spectrum, completely independent of phone line infrastructure.
Dial-up uses a modem to modulate digital data into analog signals transmitted over a standard analog telephone line, requiring a dial-up connection to an ISP.
Cable internet uses coaxial cable TV infrastructure (DOCSIS), not analog telephone lines.
DSL (Digital Subscriber Line) also operates over the copper analog phone line infrastructure but uses higher frequencies to achieve broadband speeds without occupying the voice band.
Concept tested: Internet connection types using analog phone lines
Source: https://learn.microsoft.com/en-us/windows-server/networking/technologies/nps/nps-np-configure
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