N10-005 · Question #580
Which of the following is the MOST economical way for Sandy, a technician, to implement 10- Gigabit Ethernet at a datacenter?
The correct answer is D. 10GBaseT. 10GBaseT is the most economical implementation of 10-Gigabit Ethernet because it uses standard twisted-pair copper cabling (Cat6a or Cat7) rather than expensive fiber optics.
Question
Which of the following is the MOST economical way for Sandy, a technician, to implement 10- Gigabit Ethernet at a datacenter?
Options
- A10GBaseLR
- B10GBaseSR
- C10GBaseX
- D10GBaseT
How the community answered
(24 responses)- A8% (2)
- B4% (1)
- C13% (3)
- D75% (18)
Why each option
10GBaseT is the most economical implementation of 10-Gigabit Ethernet because it uses standard twisted-pair copper cabling (Cat6a or Cat7) rather than expensive fiber optics.
10GBaseLR uses single-mode fiber for long-range distances up to 10 km, which requires expensive fiber cabling and optics.
10GBaseSR uses multimode fiber for short-range distances up to 400 m, which still requires fiber infrastructure more costly than copper.
10GBaseX is not a defined or standard IEEE 10 Gigabit Ethernet specification.
10GBaseT transmits 10 Gbps over standard Cat6a or Cat7 copper twisted-pair cabling up to 100 meters, leveraging existing copper infrastructure and lower-cost transceivers compared to fiber-based alternatives.
Concept tested: 10GBaseT copper Ethernet cost efficiency
Source: https://standards.ieee.org/ieee/802.3an/2972/
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