Multiple Choice
An exchange student in Europe calls a friend in Boston. The call travels through a fiberoptic cable under the ocean. Which of the following components of the communications system converts the student's voice into light pulses that can be carried through the fiberoptic cable?
A) encoder
B) retriever
C) source
D) decoder
Correct Answer:

Verified
Correct Answer:
Verified
Q17: It is not advisable to seek shelter
Q18: Which of the following environmental conditions do
Q19: Wires X and Y are made of
Q20: Air in a hydraulic brake line causes
Q21: Which of the following describes how power
Q23: Which of the following statements best describes
Q24: In a circuit, an electrician replaces a
Q25: Audio signals in MP3 players are stored
Q26: When calculators were first introduced, they were
Q27: Which of the following statements best describes