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SK0-005 · Question #399

An analyst is planning a new point-to-point Ethernet connection between a university campus and a newly acquired space downtown that is about 5mi (8km) away. The analyst would like the fastest…

The correct answer is A. 1000BASE-LX 1Gb single-mode plenum fiber connection. A 1000BASE-LX 1Gb single-mode plenum fiber connection would best meet the analyst's needs for a new point-to-point Ethernet connection between a university campus and a newly acquired space downtown that is about 5mi (8km) away. A 1000BASE-LX is a type of Ethernet standard that…

Server hardware installation and management

Question

An analyst is planning a new point-to-point Ethernet connection between a university campus and a newly acquired space downtown that is about 5mi (8km) away. The analyst would like the fastest possible connection speed. Which of the following would best meet the analyst's needs?

Options

  • A1000BASE-LX 1Gb single-mode plenum fiber connection
  • B10GBASE-T 10Gb copper plenum Ethernet connection
  • C1000BASE-T 1Gb copper non-plenum Ethernet connection
  • D10GBASE-SR 10Gb multimode plenum fiber connection

How the community answered

(47 responses)
  • A
    85% (40)
  • B
    2% (1)
  • C
    4% (2)
  • D
    9% (4)

Explanation

A 1000BASE-LX 1Gb single-mode plenum fiber connection would best meet the analyst's needs for a new point-to-point Ethernet connection between a university campus and a newly acquired space downtown that is about 5mi (8km) away. A 1000BASE-LX is a type of Ethernet standard that supports data transmission at 1 gigabit per second over single-mode fiber cables using long wavelength lasers. A single-mode fiber cable is a type of optical fiber cable that has a small core diameter and allows only one mode of light to propagate through it. A single-mode fiber cable can transmit data over long distances at high speeds, but it requires more expensive transceivers and connectors than multimode fiber cables. A plenum fiber cable is a type of optical fiber cable that has a special coating that prevents the spread of fire or toxic fumes in case of burning. A plenum fiber cable is suitable for installation in plenum spaces, which are areas used for air circulation in buildings, such as above ceilings or below floors.

Topics

#Ethernet standards#Fiber optics#Network cabling#Distance limitations

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