A number of employees are complaining about slow Internet connection to John, the IT supervisor. John suspects crosstalk and wants to use a cabling standard that is least susceptible to crosstalk. Which type of cabling should he use?
Explanation
Answer: C - Fiber optic cabling is least susceptible to cross talk, even though the cables run beside each other.
Key Takeaway: Crosstalk (XT) refers to any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect on another circuit or channel. Crosstalk is usually caused by undesired capacitive, inductive, or conductive coupling from one circuit. Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. An optical fiber consists of a core, cladding, and a buffer (protective outer coating), in which the cladding guides the light along the core by using total internal reflection. Proper thickness of the cladding ensures elimination of crosstalk.
