Ch. 3: Fiber-Optic Communications
(T/F): The biggest advantage of optical fiber is the fact it is the most cost effective means of transporting
information. - Answer-True
Fiber can transport nore information longer distances in less tome than any other communcations
medium.
T/F Telephone networks have been converted to fiber, including long distance and metropolitan
networks, but fiber to the home (FTTH) is not yet feasible. - Answer-False
FTTH is cost effective today because of the demand for high-speed digital services in the home and the
development of lower cost passive optical network (PON) networks.
In an industrial environment, fiber is most often used to ___? - Answer-Prevent electromagnetic
interference
Electrical interference is a problem in many industrical applications and fiber's immunity to EMI is
important.
Which of the following are NOT necessary in a centralized fiber-optic cabling architecture? - Answer-
Repeaters or hubs
Copper networks can be converted to fiber optics using ___. - Answer-Media converters
Media converters convert copper to fiber or even MM to SM fiber
(T/F): The biggest advantage of optical fiber is the fact it is the most cost effective means of transporting
information. - Answer-True
Fiber can transport nore information longer distances in less tome than any other communcations
medium.
T/F Telephone networks have been converted to fiber, including long distance and metropolitan
networks, but fiber to the home (FTTH) is not yet feasible. - Answer-False
FTTH is cost effective today because of the demand for high-speed digital services in the home and the
development of lower cost passive optical network (PON) networks.
In an industrial environment, fiber is most often used to ___? - Answer-Prevent electromagnetic
interference
Electrical interference is a problem in many industrical applications and fiber's immunity to EMI is
important.
Which of the following are NOT necessary in a centralized fiber-optic cabling architecture? - Answer-
Repeaters or hubs
Copper networks can be converted to fiber optics using ___. - Answer-Media converters
Media converters convert copper to fiber or even MM to SM fiber
