COMPUTER NETWORKING

Detailed explanation-1: -Manchester encoding is a special type of bipolar signaling in which the signal is changed from high to low or from low to high in the middle of the signal. Digital transmission occurs when the signal sent over the transmission media constantly varies among an infinite number of states.

Detailed explanation-2: -Why is Manchester encoding more popular than either? In unipolar signaling, voltage is 0 or positive representing binary bits. In bipolar signaling, voltage is positive, negative, or 0, in general, bipolar experiences fewer errors than unipolar because the signaling is more distinct.

Detailed explanation-3: -With unipolar signaling, the voltage is always positive or negative (like a DC current). In bipolar signaling, the 1’s and 0’s vary form a plus voltage to a minus voltage (like an AC current). In general, bipolar signaling experience fewer errors than unipolar signaling because the signals are more distinct.

Detailed explanation-4: -Frequency modulation refers to the changing of the height of the sound wave. False. Bandwidth is the difference between the highest and lowest frequencies in a band. True. A codec converts an incoming digital signal to an analog signal for transmission over an analog network.