Which of the following is true about infrared transmissions?
A) directed IR transmission relies on reflected light
B) diffused IR transmission requires emitter and detector to be aligned
C) the intensity of the light pulse indicates the on or off status of each bit
D) IR transmissions have speeds up to 25 Mbps.

Question

Quizplus · Accepted Answer

Infrared transmissions use the intensity of the light pulse to indicate the on or off status of each bit. Choices A and B are incorrect as directed IR transmission does not rely on reflected light and diffused IR transmission does not require emitter and detector to be aligned. Choice D is also incorrect as IR transmissions have speeds up to 4 Mbps, not 25 Mbps.

Which of the Following Is True About Infrared Transmissions