1 ) the buffer coating (c)
2) the jacket (d)
3) The cladding does not absorb any light (d)
4 ) 2 advantages
1- Fiber optics are less expensive
2- Optical fibers are thinner and have higher carrying capacity
5) Fiber optic technician test,maintain and build fiber optic systems
6) they generally require a 2 year diploma at a college with specialized training in fiber optic technologies.