N10-005 · Question #367
Which of the following 802.3 classifications has a MAXIMUM segment distance of 984 feet (300 meters)?
The correct answer is C. 1000BaseSX. 1000BaseSX uses short-wavelength (850 nm) laser over multimode fiber and has a maximum segment distance of approximately 220–550 meters depending on fiber grade; for exam purposes it is commonly cited at up to 300 meters (984 feet). The other options have different distances…
Question
Which of the following 802.3 classifications has a MAXIMUM segment distance of 984 feet (300 meters)?
Options
- A1000Base
- B100BaseFX
- C1000BaseSX
- D1000BaseT
How the community answered
(32 responses)- B6% (2)
- C91% (29)
- D3% (1)
Explanation
1000BaseSX uses short-wavelength (850 nm) laser over multimode fiber and has a maximum segment distance of approximately 220–550 meters depending on fiber grade; for exam purposes it is commonly cited at up to 300 meters (984 feet). The other options have different distances: 1000BaseT (copper Cat5e/6) is limited to 100 meters; 100BaseFX (multimode fiber) supports up to 2 kilometers; and generic '1000Base' is not a specific standard. 1000BaseSX is the only choice that matches the 300-meter figure.
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