QUESTIONS FULLY CORRECT
⫸ What is the unit of luminous flux - the quantity of photons emitted
from a 1 candela light source through an area of 1 square meter on a
sphere 1 meter in radius surrounding that light source?
A: Foot-candle
B: Nit
C: Lux
D: Lumen Answer: D: Lumen
⫸ A signal that has many varying states is called a(n) _______ signal.
A: Analog
B: Fluctuating
C: Dimmer
D: Digital Answer: A: Analog
⫸ Bit depth is defined as the number of _______ you have in which to
describe the value.
,A: Signals
B: Speeds
C: States
D: Rates Answer: C: States
⫸ Lossy compression is particularly suitable for the transmission of
________.
A: Spreadsheets
B: Text files
C: Financial data
D: Audio, video, and images Answer: D: Audio, video, and images
⫸ What is a codec?
A: A structure of data containment
B: A formatting system
C: A program that holds data
D: A device or processing system that encodes and decodes data
Answer: D: A device or processing system that encodes and decodes
data
, ⫸ As noise is introduced along a(n) ________ signal path, processing
circuitry can determine whether the signal is intended to be high or low
and then retransmit a solid signal without the imposed noise.
A: Digital
B: Dirty
C: Analog
D: Clean Answer: A: Digital
⫸ Noise overcomes the signal after many generations of re-
amplification of a(n) _________ signal.
A: Digital
B: Analog
C: Low
D: High Answer: B: Analog
⫸ How sound moves through the air is called ________.
A: Generation
B: Compression
C: Acoustical
D: Propagation Answer: D: Propagation