2.03 - Transmission media Flashcards
What are the 3 types of network cables?
- Twisted pair cable
- Coaxial cable
- Fibre - optic cable
Which cable costs the most?
Fibre optic cable
Which cable costs the least?
Twisted pair cable
Which cable has the highest bandwidth?
Fibre optic cable
Which cable has the least bandwidth?
Twisted pair cable
Which cable is most affected by attenuation?
Coaxial cable
Which cable is least affected by attenuation?
Fibre optic
Which cable is most affected by interference?
Twisted pair cable
Which cable is least affected by interference?
Fibre optic cable
Which cables need repeaters often?
Twisted pair and Coaxial cables
Which cable need repeaters less often?
Fibre optic
Name
A simmilarity between Coaxial and Twisted pair cables
Both use copper for transmission medium
Name
Factors to consider when choosing a cable for a given application
- Cost of cables and connecting devices
- Bandwidth
- Attenuation
- Interference
- Need for repeaters
Which 2 factor effect performance during transmission throgh cables?
Attenuation and Intereference
What are the 3 types of wireless transmission?
- Radio waves
- Microwaves
- Infrared / Satellites
Name
Frequencies of radiowaves, microwaves and infrared
Radio waves (3KHz-3GHz)
Microwaves (3-300GHz)
Infrared (300GHz-400THz)