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CompTIA

220-801 · Question #205

Which of the following Internet connection types would be MOST susceptible to interference from weather? (Select TWO).

The correct answer is B. Line-of-sight C. Satellite. Line-of-sight and satellite connections travel through the open atmosphere and are vulnerable to rain fade, signal scatter, and physical obstructions caused by weather.

Networking

Question

Which of the following Internet connection types would be MOST susceptible to interference from weather? (Select TWO).

Options

  • ADial-up
  • BLine-of-sight
  • CSatellite
  • DCable
  • EDSL

How the community answered

(21 responses)
  • A
    5% (1)
  • B
    95% (20)

Why each option

Line-of-sight and satellite connections travel through the open atmosphere and are vulnerable to rain fade, signal scatter, and physical obstructions caused by weather.

ADial-up

Dial-up uses the existing copper public switched telephone network, which is largely protected infrastructure and not significantly impacted by weather.

BLine-of-sightCorrect

Line-of-sight wireless links (such as fixed microwave or fixed wireless broadband) require an unobstructed path between antennas; precipitation, fog, and wind-blown objects can attenuate or block the signal.

CSatelliteCorrect

Satellite signals must pass through the full depth of the atmosphere twice (up and down), making them highly susceptible to rain fade and atmospheric absorption, especially at higher frequencies such as Ku-band.

DCable

Cable uses coaxial cable in buried or protected conduits, which is not meaningfully affected by weather conditions.

EDSL

DSL also travels over copper telephone wiring in protected conduits and is not materially susceptible to weather interference.

Concept tested: Wireless connection types and weather susceptibility

Source: https://www.fcc.gov/consumers/guides/getting-broadband-qa

Topics

#satellite#line-of-sight#internet connections#wireless interference

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