220-801 · Question #865
Which of the following network connections would use a standard POTS line to both send and receive Internet packets? (Select TWO).
The correct answer is A. Dial-up B. DSL. Dial-up and DSL both operate over standard POTS (Plain Old Telephone Service) copper telephone lines to carry Internet data. The key distinction is that satellite, OC3, and T1 do not rely on the standard POTS infrastructure.
Question
Which of the following network connections would use a standard POTS line to both send and receive Internet packets? (Select TWO).
Options
- ADial-up
- BDSL
- CSatellite
- DOC3
- ET1
How the community answered
(31 responses)- A87% (27)
- C3% (1)
- D6% (2)
- E3% (1)
Why each option
Dial-up and DSL both operate over standard POTS (Plain Old Telephone Service) copper telephone lines to carry Internet data. The key distinction is that satellite, OC3, and T1 do not rely on the standard POTS infrastructure.
Dial-up modulates data over the standard POTS voice frequency band (up to 56 Kbps) using the same copper telephone line that carries voice calls, making it a direct POTS-based connection.
DSL also runs over standard POTS copper telephone lines but uses higher frequency bands above the voice range, allowing simultaneous voice and data transmission without interfering with the voice channel.
Satellite Internet uses a dish antenna and geostationary or low-earth-orbit satellites for transmission and does not use POTS lines at all.
OC3 is a fiber-optic SONET standard operating at 155.52 Mbps and is entirely separate from the copper-based POTS infrastructure.
T1 is a dedicated digital leased line that uses its own copper pairs with specific signaling and is not part of the standard POTS dial-up telephone network.
Concept tested: POTS-based Internet connection types (Dial-up and DSL)
Source: https://learn.microsoft.com/en-us/troubleshoot/windows-client/networking/description-of-dial-up-modems
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