ISC Exam Questions

Which standard below does NOT specify fiber optic cabling as its physical media?

Which standard below does NOT specify fiber optic cabling as its physical media?

A.
1000BaseSX

B.
100BaseFX

C.
1000BaseCX

D.
1000BaseLX

Explanation:
1000BaseCX refers to 1000Mbps baseband copper cable, using two pairs of 150 ohm balanced cable
for CSMA/CD LANs. * 100BaseFX, specifies a 100 Mbps baseband fiber optic CSMA/CD LAN. Answer
c, 1000BaseLX, specifies a 1000Mbps CSMA/CD LAN over long wavelength fiber optics. *
1000BaseSX, specifies a 1000Mbps CSMA/CD LAN over short wavelength fiber optics.