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291. In _________ there is always a transition at the middle of the bit, but the bit values are determined at the beginning of the bit. If the next bit is 0, there is a transition; if the next bit is 1, there is none.
Correct answer: (B)
differential Manchester
292. In _________ transmission, a start bit and a stop bit frame a character byte.
Correct answer: (A)
asynchronous serial
293. In _________ transmission, bits are transmitted over a single wire, one at a time.
Correct answer: (D)
(a) and (b)
294. In _________ transmission, bits are transmitted simultaneously, each across its own wire.
Correct answer: (C)
Parallel
295. In _________ transmission, the carrier signal is modulated so that its amplitude varies with the changing amplitudes of the modulating signal.
Correct answer: (A)
AM
296. In _________ transmission, the channel capacity is shared by both communicating devices at all times.
Correct answer: (C)
full-duplex
297. In _________ transmission, the frequency of the carrier signal is modulated to follow the changing voltage level (amplitude) of the modulating signal. The peak amplitude and phase of the carrier signal remain constant, but as the amplitude of the information signal changes, the frequency of the carrier changes correspondingly.
Correct answer: (C)
FM
298. In _________ transmission, the phase of the carrier signal is modulated to follow the changing voltage level (amplitude) of the modulating signal.
Correct answer: (B)
PM
299. In _________ transmission, we send 1 start bit (0) at the beginning and 1 or more stop bits (1s) at the end of each byte.
Correct answer: (B)
asynchronous
300. In _________ transmission, we send bits one after another without start or stop bits or gaps. It is the responsibility of the receiver to group the bits.
Correct answer: (A)
synchronous