A number of employees are complaining about slow Internet connection to John, the IT supervisor. John suspects crosstalk and wants to use the 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.
