Deck 11: Digital Theory

Question 1

Digital information is variable and often changes over time.

Answer 1

False

Question 2

Noise is analog information just as video and audio are.

Answer 2

True

Question 3

The larger the quantity of data, the greater the amount of bandwidth required to transmit that data. This movement of data is referred to as output.

Answer 3

False

Question 4

Luminance and color information are sampled at the same rate.

Question 5

The transfer of data from one source to another occurs through a serial digital interface.

Question 6

The basis for determining the sampling rate of video was the

A) line frequency
B) subcarrier frequency
C) blanking frequency
D) frame frequency

Question 7

The number of binary or digital bits the computer can read at once is known

A) the Nyquist theorem
B) word size
C) quantizing
D) sampling rate

Question 8

Who first derived the rule that the sampling rate must be more than twice the highest frequency contained in the analog signals?

A) Vladimer Zworykin
B) Philo Farnsworth
C) Harry Nyquist
D) Reginald Fessenden

Question 9

Which example below represents four times the subcarrier frequency as the sampling rate for the luminance portion of the signal, and two times the subcarrier frequency for each of the color difference signals.

A) 4:2:2
B) 4:4:4
C) 4:4:4:4
D) RS422

Question 10

Although not directly compatible with SDI, the
Is a very common interface that allows consumer cameras, displays and computers to be used in a professional environment, even though they can only send the signal about 20 feet.

A) Toslink
B) AES/EBU
C) HDMI
D) S-Video connector