Question 1

What is the main advantage of a flash drive?&#10;A) it records faster than other devices&#10;B) it has a higher recording capacity than other media&#10;C) it has no moving parts&#10;D) it provides for a linear playback&#10;E) it stores the information longer than other media

Accepted Answer

The main advantage of a flash drive is that it has no moving parts. This means that it is more durable and less likely to become damaged through physical shocks or jolts. It is also faster and more reliable than other media such as CDs or floppy discs, which can easily become scratched or corrupted. Additionally, flash drives can store a large amount of data and are easy to transport, making them ideal for backing up important files or transferring data between devices.

Question 2

What includes color bars and a test tone?&#10;A) a codec&#10;B) a control track&#10;C) a slate&#10;D) a shot list&#10;E) a video leader

Accepted Answer

Color bars and a test tone are typically found at the beginning of a video, known as the video leader. The video leader is used to adjust and calibrate the picture and sound levels for the viewer.

Question 3

What is interframe compression?&#10;A) the system compares each frame with the preceding one and uses only pixels that constitute a change&#10;B) each frame stripped of unnecessary pixels&#10;C) the system looks for spatial redundancy in each frame&#10;D) the identical pixels are eliminated from one frame to the next&#10;E) only those pixels are eliminated that are close to the frame of the image

Accepted Answer

Interframe compression is a form of video compression where the system compares each frame with the preceding one and uses only pixels that constitute a change. This is also known as delta coding or motion estimation. This reduces the amount of data needed to represent each frame and results in smaller video file sizes.

Question 4

What is the principle of intraframe compression?&#10;A) all frames are equally compressed by eliminating the same amount of pixels&#10;B) each frame is stripped of redundant pixels&#10;C) the system compares each frame with the preceding one and uses only pixels that constitute a change&#10;D) it eliminates spatial redundancy&#10;E) it eliminates most of the color information

Accepted Answer

The answer of What is the principle of intraframe compression?&#10;A)...

Question 5

What electronic system would you recommend for extensive postproduction and complex effects?&#10;A) Y/C composite&#10;B) Y/C component&#10;C) Y/color difference or RGB component&#10;D) Y/color difference or RGB composite&#10;E) NTSC composite

Accepted Answer

Y/color difference or RGB component is the best choice for extensive postproduction and complex effects, as it allows for more accurate color representation and separation, as well as better control over the individual RGB channels. The other options listed are either outdated (NTSC composite) or offer less flexibility and precision in postproduction.

Question 6

Which compression systems does MPEG-2 use?&#10;A) intraframe, lossy&#10;B) interframe, lossy&#10;C) interframe, lossless&#10;D) intraframe, lossless&#10;E) intraframe streaming

Accepted Answer

MPEG-2 uses interframe compression along with lossy compression techniques to reduce the size of the video. In interframe compression, only the changes between frames are recorded rather than every frame, which reduces the size of the video. The lossy compression technique is used to discard some of the non-essential information from the video, which also reduces the size of the video.

Question 7

Besides a time base corrector, what electronic equipment stabilizes VTR video?&#10;A) a component system&#10;B) a frame store synchronizer&#10;C) a composite system&#10;D) a VTR&#10;E) a VR

Accepted Answer

A frame store synchronizer is used to stabilize VTR video by matching the timing of the incoming video signal with the timing of the output signal. This helps prevent jitter and other timing errors that can occur during playback. A time base corrector is also used for this purpose, but a frame store synchronizer is more advanced and provides additional features such as frame synchronization and editing capabilities. A component system, composite system, VTR, and VR are not specifically designed to stabilize VTR video.

Question 8

How does the ESS system store its images?&#10;A) as individual analog frames&#10;B) as individual analog fields&#10;C) as individual digital frames&#10;D) as individual digital fields&#10;E) as composite fields

Accepted Answer

The ESS system stores its images as individual digital frames, as digital storage allows for higher quality and easier access to the images. Storing the images as individual analog frames or fields would require physical storage and increase the risk of damage or loss. Composite fields are not a standard method of image storage.

Question 9

Which statement best describes a composite video system?&#10;A) it transports and records the Y and C signals separately&#10;B) it transports and records the RGB signals separately&#10;C) it transports and records the Y and C signals together&#10;D) it transports the Y and C signals separately but records them as a combined signal&#10;E) it transports the Y/color difference signals separately but records them together

Accepted Answer

A composite video system combines the video signal into one channel, meaning it transports and records the luminance (Y) and chrominance (C) signals together, unlike component or S-video systems that keep these signals separate.

Question 10

What deteriorates the quickest?&#10;A) Multiple generations of video recorded on an analog VTR&#10;B) Multiple generations of video recorded on a digital VTR&#10;C) MPEG-2 video&#10;D) MPEG-4 video&#10;E) Video recorded to a hard drive

Accepted Answer

Analog video deteriorates more quickly than digital video, especially when multiple generations are made. Each re-recording adds noise and distortion, degrading the quality of the image.

Deck 13: Video-Recording and Storage Systems