chapter 3 networking tapologies,connectors,and wiring standards Flashcards
What does fiber optic cable do?P64
It transmits digital signals using light impulses rather than electricity , and its immune EMI and RFI.
Are RJcons of fiber optic cable-45 mainly used in LAN ?P64 T/F
True
RJ-48c is used in what network?P64
WAN
What are some pros for fiber optic cable?P65
Immune to EMI and RFI, it can transmit up to 40 kilometers (about 25 miles).
What are some cons of fiber optic cable?P65
Difficult to install, more expensive than twisted pair, troubleshooting equipment is more expensive than twisted pair test equipment, and harder to troubleshoot
What is SMF?P65
Single mode fiberoptic cable
What companies would you use single mode fiber?P65
At@t,Google,etc
What is MMF?P65
Multimode fiber optic cable
Multimode fiber have limited distance up to what length/P65
3,000 feet.
A special material called ——- is used to line of the core of multimode fiber cable and focus the light back on to it.?P
Cladding
MMF is most often used with in a smaller area of one building, and can be used between buildings?p65 T/F
True
An 8 degree angled polish light is reflected into the cladding and the return loss is what decibel?P66
65db
A UPC polish light is reflected back down to the core, and the return loss is what decible?P66
55db
Which of the following are fiber optic cables?(Choose Three)P66 A. RJ-11,B. ST,C. SC,D.BNC,E. LC
ST(straight tip),SC(subscriber(or square),LC(local connector)
What are the two most popular versions of small form factor fiber optic connections?P68
MtT-R(mechanical transfer registered jack) or MTRJ
