BICSI Technician- Netcom - Chapter 1 questions with correct answers

Three transmission methods are Correct Answer-Symplex, half duplex, full duplex The choice of a specific transport medium is influenced by 5 economics and technical considerations such as the: Correct Answer-Physical construction, type of services, topology and size of the network, transmission path distance, transmission performance characteristics of the cabling. Twisted pair cable is called balanced cable because: Correct Answer-The physical construction of both conductors and the associated connections transmit information electrically at the same potential referenced to ground. Coaxial cable is unbalanced because: Correct Answer-The two conductors in the associated connections transmit information electrically at different potentials referenced to ground. __________ current has a rapid increase and decrease of the voltage that cannot be perceived by the eye. Correct Answer-Alternating or AC __________ refers to a steady value that does not change the polarity of the voltage for the direction of the current. Correct Answer-Direct current or DC A battery is an example of a _____ source. Correct Answer-Direct current or DC EMI Correct Answer-Electromagnetic interference