Chapter 3 BB Flashcards
What are the three types of popular cables used in modern networking designs? Pg 57
Coaxial, twisted-pair, fiber optic
What is coax made of? Pg 58
A center conductor made of copper, surrounded by a plastic(such as PVC or Teflon) with a braided cover over it.
What is another name for Telfon-type coating? Pg 58
plenum-rated coating
Why can non-plenum cables become a major fire hazard? Pg 58
The insulation, when burned, gives off poisonous gas and the cable can act as a ‘wick’ that distributes the fire throughout the building quickly due to the cable being hidden in the plenum (the space between floors).
Plenum cable is fire retardant and does not give off poisonous fumes, if this is the case, why is non-plenum cable used at all? Pg 58
It’s significantly cheaper and plenum cable is only required in certain areas of the building to ensure safety
What kind of cable requires BNC connectors and terminating resistors?
Thinnet cable (aka thin ethernet, 10base2)
What are the two RG cables used in the modern day? Pg 59
RG-59 and RG-6
