Topic 2A: Summarize Ethernet Standards Flashcards
What does Electromagnetic radiation mean?
Transmitting signals as electric current, infrared light, or radio waves.
What is the advantage of more bandwidth?
The more bandwidth available in the media, the greater the amount of data that can be encoded.
What are the two main types of copper cables?
Twisted pair and coaxial (coax).
What is the problem with copper cables?
Copper cable suffers from high attenuation.
What is attenuation?
The signal quickly loses strength over long links.
What kind of signal does fiber optic cable use?
Very high frequency radiation in the infrared light part of the electromagnetic spectrum.
What is the advantage of fiber optic cables?
The light signals are also not susceptible to interference or noise from other sources and less affected by attenuation.
