16 questions
In fiber optics, the signal is _______ waves.
light
radio
infrared
very low frequency
Which type of signal is sent as electrical on-off signals?
Digital
Analog
____________________ code uses a series of 1's and 0's to communicate information.
Binary
Tertiary
Mono
Decimal
Music studios use “soundproof” recording rooms. The walls of these rooms are designed in such a way that the only sounds that reach the microphones inside the room are sounds from inside the room. The most important characteristic in designing the soundproof room is to create walls that–
allow communication between people inside and outside the room.
reflect sounds around the room to alter their properties.
allow sounds to move easily from one place to another.
absorb sounds and prevent them from passing through.
This is a signal where the data is represented by binary digits.
DIgital
Analog
An analog signal is sent in discrete pulses in two states, on= 1 or off= 0.
True
False