Digital Media FINAL EXAM

Which of the following is the best way to capture digital videos? A) Capture at least a few seconds extra at the beginning and the end of the clip segment you expect you will need. B) Capture at least a few seconds extra at the beginning of the clip segment you expect you will need, but no extra seconds at the end of the clip. C) Capture at least a few seconds extra at the end of the clip segment you expect you will need, but no extra seconds at the beginning of the clip. D) Capture exactly only the clip segment you expect you will need; no extra seconds at the beginning or the end of the clip.

Capture at least a few seconds extra at the beginning and the end of the clip segment you expect you will need.

Chrominance is best defined as the A) sharpness B) frequency C) brightness D) color

Color

Which of the following is not correct? A) RGB and CMYK Color Space encompass all the colors human can see B) Color Gamuts refer to the range of colors of a specific system or device can produce or capture C) Some of the colors that monitors can reproduce cannot be reproduced by inkjet printers. D) Monitors and inkjet printers cannot reproduce all the colors that human can see

Color Gamuts refer to the range of colors of a specific system or device can produce or capture

Which of the following is not static image? A) PNG images B) GIF images C) BMP images D) JPEG images

GIF images

Which of the following support animation? A) PNG images B) GIF images C) BMP images D) JPEG images

GIF images

Which of the following should not be used as working files for further editing? A) TIFF B) JPEG C) PSD D) PNG

JPEG

Which of the following are all video file formats? A) MPEG, JPEG, MP3 B) MPEG, MOV, JPEG C) MPEG, GIF, WAV D) MPEG, MOV, AVI

MPEG, MOV, AVI

support the DVD-video, HDV, and HDTV standards. A) MPEG-1 B) MPEG-2 C) MPEG-3 D) MPEG-4

MPEG-2

Which of the following is the television broadcast standard for US and Japan? A) NTSC B) PAL C) SECAM D) None of the above

NTSC

12) Eight bits equals A) one byte B) one megabyte C) one gigabyte D) one bit

One byte

Which of the following file extensions indicates pixel-based files? A) TXT B) DOC C) PNG D) EPS

PNG

A pixel is short for A) Pixars per inch B) Pixel elements C) Picture elements D) Picture of elephants

Pixel elements

In which of the following uses of audio that the smaller file size is generally a more crucial consideration? A) Video B) Multimedia authoring C) Playback on the Web D) Audio CD

Playback on the Web

Which of the following is true? A) When a digital image is printed, each image pixel is represented by one printer ink dot. B) Resampling an image will have negative impact on the image quality. C) Print resolution and printer resolution are the same. D) Print resolution have an impact on the image quality when printed.

Resampling an image will have negative impact on the image quality.

In order for continuous or analog data to be digitized the following process used A) Quartering B) Measuring C) Duplicating D) Sampling

Sampling

In digital audio, higher resolution means higher ___. A) amplitude B) frequency C) sampling rate D) bit depth

Sampling rate

When analog information is converted to digital data, we must consider two properties that affect the exactness of the digital representation, one from sampling and one from quantizing. Which of the following is from sampling? A) sampling rate B) bit depth

Sampling rate

Which one of the following is the main advantage of using streaming format or progressive download for an animation playback on the Web? A) You do not have to wait until the whole file has been downloaded in order to start playing. B) The download speed is faster C) the download time is shorter D) The download is more secure

You do not have to wait until the whole file has been downloaded in order to start playing.

Which of the following images is better saved in JPEG? A) a picture taken by a camera B) a cartoon image drawn by an artist C) a logo designed for a company D) a poster that contains only a few colors

a picture taken by a camera

Digital photo quality is determined by: A) the optics of the lens B) the size and quality of the sensor C) the camera electronics D) all of the above

all of the above

Music is digitized by a two step process. Sampling and quantization. In quantization, A) discrete music data is turned into continuous data B) the sampling rate is doubled C) the amplitude values are converted to hertz D) Amplitude values from each sample are mapped to the nearest value on a scale of discrete levels

amplitude values obtained from the sampling rate are mapped and rounded to the nearest value on a scale of discrete levels

In the quantization step, to capture an analog image to a digital image, ___. A) a 2-dimensional grid is applied on the image and each tiny cell on the grid is converted into a pixel; B) a 2-dimensional grid is applied on the image to apply dithering to the image C) an infinite number of color shades and tones in an analog image is mapped to a set of discrete color values D) the resulting digital image file is compressed to have a smaller file size

an infinite number of color shades and tones in an analog image is mapped to a set of discrete color values

Data will be lost or altered when you apply these strategies, except A) reduce sampling rate B) reduce bit depth C) apply lossy compression D) apply encryption

apply encryption

1) Which of the following would reduce the size of a digital media file? A) increasing sampling rate B) reducing bit depth C) applying compression D) b and c only

b and c only

27) The main advantage(s) of bitmapped images over vector graphics is(are) A) scalability or resolution independence of images B) ease of editing the image content pixel by pixel C) more compact file size compared to vector graphics D) a and c

ease of editing the image content pixel by pixel

A sound with higher ___ is perceived to have a higher pitch. A) decibels B) fidelity C) frequency D) sampling rate

frequency

Which of these strategies does not actually change the quality of the media file? A) lossy compression B) jpeg compression C) lossless compression

lossless compression

Vector graphics are composed of A) individual pixels which represent spatial samples of the image or scene B) mathematical descriptions of image elements which include points, lines, curves, and figures

mathematical descriptions of image elements which include points, lines, curves, and figures

The main advantage(s) of vector graphics over bitmapped images is(are) _____. A) scalability or resolution independence of images B) ease of editing the image content pixel by pixel C) more compact files compared to bitmapped images D) resolution dependent of images

more compact files compared to bitmapped images

Which of the following audio file formats does not support streaming? A) rm B) ra C) mov D) wav

mov

2) Complete this sentence. A pixel... A) represents a sample of information in an image B) is always 1 bit C) is always 8 bits D) none of the above

none of the above

Which of the following is digit information? A) Height of a person B) number of students in GGC C) Air pressure D) Frequency of a sound wave

number of students in GGC

A waveform is a graphical representation of the ___ fluctuations of a sound wave. A) frenquency-time B) pressure-space C) space-time D) pressure-time

pressure-time

Several high definition video camcorders are available to record 720p and 1080i formats. The letters ʺpʺ and ʺiʺ in each format name stand for _____ and _____ respectively A) pixels;inches B) proprietary; infrastructure C) progressive; interlaced D) ppi;ppi

progressive; interlaced

In RGB model, what would it be if white is mixed with black? A) white B) black C) gray D) dark gray

white

The number of bits needed to represent each pixel in a black and white (i.e. two colors) image is A) 1 bit B) 2 bits C) 3 bits D) none of these

1 bit

3) Our everyday decimal numbering system is base A) 5 B) 2 C) 10 D) 1

10

What is the file size for a 10-minute CD-quality stereo music audio file? Choose the closest one. A) 10 MB B) 100 MB C) 150 MB D) 50 MB

100 MB

Convert the 3 in decimal to binary: A) 3 B) 10 C) 1100 D) 11

11

If we consider human earʹs most sensitive range of frequency (2,000 Hz to 5,000 Hz), then what is the lowest sampling rate may be used that still satisfies the Nyquist Theorem? A) 11,025 Hz AM Radio Quality/Speech B) 22,050 Hz Near FM Radio Quality C) 44,100 Hz CD Quality D) 48,000 Hz DAT (digital audio tape) Quality

11,025 Hz AM Radio Quality/Speech

What is the binary number for decimal value 55? A) 110111 B) 101011 C) 100111 D) 110011

110111

In converting decimal number 121 to binary number, the correct answer should be________. A) 1001111 B) 0111001 C) 1111001 D) 111001

1111001

What is the decimal value of the binary number 1101 A) 11 B) 1101 C) 13 D) 111

13

Which of the following sizes is the largest? A) 1,000MB B) 100GB C) 10,000KB D) 1TB

1TB

Computers use a binary number system which is base A) 5 B) 2 C) 10 D) 1

2

For a 200MB animation file, how much time does it take to download this file if the internet speed is 1.5 Mbps? Choose the closest one. A) 10 minutes B) 20 minutes C) 5 minutes D) 25 minutes

20 minutes

For an average person, the highest pitch he/she can hear is A) 20 Hz B) 200 Hz C) 2,000 Hz D) 20,000 Hz

20,000

If you want to encode only 8 colors, what is the minimum number of bit(s) you need? A) 2 B) 3 C) 8 D) 16

3

What is the data rate for a video with file size of 2GB and lasting 10 minutes? Choose the closest one. A) 1 MB/second B) 2.5 MB/second C) 3.3 MB/second D) 6.7 MB/second

3.3 MB/second

A picture has 8M pixels. If each pixel needs 4 bytes, how big is the file size to save the picture without applying compression? A) 4MB B) 8MB C) 16MB D) 32MB

32 MB

Without applying any compression, what would be the file size for an image of 4000 X 3000 pixels in 24-bit color depth? Choose the closest one. A) 12MB B) 18MB C) 24MB D) 36MB

36MB

If a waveform has 1000 cycles in 2.5 seconds, the frequency for this waveform is A) 100 B) 400 C) 800 D) 1000

400

If the sound to be digitized has frequency in this range (1000-2000) hz, what will be the minimum sampling rate according to the sampling theorem? A) 44,1000hz B) 4000 C) 2000 D) 8000

4000

One Kilobyte contains _______ bits. A) 8000 B) 8 C) 1000 D) 1000000

800

Suppose that you scan a 2ʺ x 1ʺ picture in at a resolution of 400 dpi. What are the pixel dimensions of the scanned image? ___ pixels x ___ pixels A) 600 x 300 B) 800 x 400 C) 200 x 100 D) 400 x 200

800 x 400

______is an example of lossless compression and ________ is an example of lossy compression A) zipped files and jpeg files B) jpeg files and zipped files C) neither a nor b

zipped files and jpeg files

Increasing the bit depth from 8-bit to 16-bit will _____ the file size. (Assuming all other things being equal and no file compression) A) triple B) quadruple C) double D) not effect

Double

Increasing the sampling rate from 22.05 KHz to 44.1 KHz will _____ file size. (Assuming all other things being equal and no file compression) A) triple B) quadruple C) double D) not effect

Double

Which file extension indicates vector graphic files A) BMP B) TIFF C) GIF D) EPS

EPS

If you copy digital data many times, the original data will be damaged. A) True B) False

False

According to Nyquistʹs theorem, to be able to reconstruct the sound wave satisfactorily the sampling rate of the audio must be at least _____ audio frequency. A) ten times B) three times C) equal to D) twice

Twice

What provides a graphical view of characteristics of a changing sound and identify syllables of speech, rhythm of music, quiet and loud passages, etc.? A) Waveforms B) Frequency C) Bar Graph D) Sampling

Waveforms

Which of the following is not an example of lossy compression? A) JPEG B) MP3 C) WinZip D) AVI

WinZip

Which of the following RGB color representations is the color table entry for the magenta color? A) (0, 255, 255) B) (255, 0, 255) C) (255, 255, 0) D) (150, 150, 150)

(255, 0, 255)

Which of the following is the red color in RGB model? A) (0,0,0) B) (255,0,0) C) (0,255,0) D) (0,0,255)

(255,0,0)

The frequency at which information is sampled can affect: A) The quality of the resulting data file B) The size of the resulting data file C) The format of the resulting data file D) A and B only

A and B only

What are the CMY values for red? A) (0%, 100%, 100%) B) (100%, 0%, 100%) C) (100%, 100%, 0%) D) (100%, 0%, 0%)

A) (0%, 100%, 100%)

Which of the following image file format uses lossy compression? A) JPEG B) PNG C) PSD D) TIFF

A) JPEG

Which of the following is the television broadcast standard for US and Japan? A) NTSC B) PAL C) SECAM

A) NTSC

The reduction of a digital audio file size can be achieved by (select all that apply) A) reducing the sampling rate B) reducing the pitch of the audio C) reducing the bit depth D) applying file compression techniques

A) reducing the sampling rate C) reducing the bit depth D) applying file compression techniques

Data compression which cannot be exactly reversed, so that the decompression operation restores only an approximation to the original data is known as lossy compression. A) True B) False

B) False

Increasing the bit depth typically has which effect on the size of a file A) reduces file size B) increases file size C) neither a nor b

B) increases file size

What is the order of performing noise reduction given the following operations? A. Select the segment of the audio you want to apply noise reduction to. B. Select a segment that constains pure noise. C. Have the program perform a statistical analysis of the noise to generate a profile. D. Have the program reduce the noise of the selected segment based on the noise profile. A) B-C-A-D B) B-A-C-D C) A-C-B-D D) C-B-D-A

B-C-A-D

Which of the following image formats is not good for web applications? A) JPEG B) GIF C) BMP D) PNG

BMP

In CMYK color model, what color would it be if Black is mixed with White? A) Black B) White C) Gray D) Dark Gray

Black

Luminance is best defined as the A) sharpness B) frequency C) brightness D) color

Brightness

28) Higher _____ will result in larger file size. (select all that apply) A) amplitude B) frequency C) samplling rate D) bit depth

C) samplling rate D) bit depth

The frame rate for the NTSC system is _____ fps. A) 24 B) 25 C) 28.97 D) 29.97

D) 29.97

How many bits are there in one byte? A) 1 B) 2 C) 4 D) 8

D) 8

Which of the following is not a consequence of image quantization? A) the number of allowed colors in the image is reduced; B) loss of the image fidelity and details; C) The details that rely on the subtle color differences are lost during quantization; D) Sampling rate is reduced

D) Sampling rate is reduced

The main advantage(s) of vector graphics over bitmapped images is(are) A) scalability or resolution independence of images B) ease of editing the image content pixel by pixel C) always results in smaller file sizes compared to bitmapped images. D) a and c

D) a and c

The term digital is used to describe: A) Data that has been encrypted for security purposes B) Data that is stored in a format of ones and zeros C) Data that is stored in a any format D) Data that is stored on cassette tapes

Data that is stored in a format of ones and zeros

The X-axis in a image histogram represents: A) The color values in the image. B) The number of pixels showing certain colors C) The time intervals at which image was sampled. D) None of above

The color values in the image.

What kind of images are GIF files most appropriate for? A) big areas of solid colors B) continuous tone photographs C) lots of gradients D) lots of gradients

big areas of solid colors

Which is not the consequences of higher image resolution? A) more samples B) bigger file size C) bigger bit depth D) more image details

bigger bit depth

The number of values that can be represented as a result of quantizing information is know as the 10) ______ A) binary digit B) sampling rate C) bit depth D) resolution

bit depth

When analog is converted to digital data, two properties affect the exactness of the digital representation, one for sampling and one for quantizing. Which of the following is a result of quantization? A) sampling rate B) bit depth

bit depth

Which of the following factors will increase the file size of a digital image? A) larger pixel dimensions (resolution) B) higher color depth C) neither a nor b D) both a and b

both a and b

What affects the file size of a bitmap image? A) both height and width in pixel resolution B) contents of the image (what is in the image) C) its width alone D) its height alone

both height and width in pixel resolution

Given a 10 second video which is 100Mega Bytes in size, if you paly this video on a device that can handle a 7MB/s data rate, the playback of the video will be _______. A) smoothy B) choppy C) unknown, depending on the type of computer the video is played on. D) All of the above

choppy

Rasterization means ______. A) converting vector graphics into pixel-based images B) converting pixel-based images into vector graphics C) converting regions into lines D) converting lines into regions

converting vector graphics into pixel-based images

Bitmapped images are composed of A) individual pixels which represent spatial samples of the image or scene B) mathematical descriptions of image elements which include points, lines, curves, and figures

individual pixels which represent spatial samples of the image or scene

Complete this sentence. Sound... A) Can only travel through air B) is detected by rod and cone receptors C) is a result molecules vibrating through some medium such as air D) none of the above

is a result molecules vibrating through some medium such as air

If a digital image has a higher bit depth, ___than it would have been at a lower bit depth. A) it has larger pixel dimensions B) it has more different colors C) a higher sampling rate is used D) it has larger image resolution

it has more different colors

If a frame with pixel aspect ratio 1.0 is displayed on a device using pixel aspect ratio of 1.2, the image will be _____. A) stretched horizontally B) stretched vertically C) cropped at the left and right edges D) cropped at the top and bottom

stretched horizontally

If a frame with pixel aspect ratio 1.2 is displayed on a device using pixel aspect ratio of 1.0, the image will be _____. A) stretched horizontally B) stretched vertically C) cropped at the left and right edges D) cropped at the top and bottom

stretched vertically

Which of the following compression methods achieves higher compression for videos without much motion difference such as for talking heads? A) spatial compression B) temporal compression C) lossless compression D) asymmetric compression

temporal compression

The number of pixels in x direction that a flatbed scanner can produce is determined by A) the size of the scanned image B) the number of sensors the scan head has C) the number of scan heads the scanner has

the number of sensors the scan head has

Which of the following is NOT correct if more samples are taken from a sound wave, A) the reconstructed wave looks closer to the original wave B) the resulting file has a bigger file size C) the process has a higher sampling rate D) the sound has a higher frequency

the sound has a higher frequency

The horizontal axis of a waveform is _____. A) distance B) time C) height D) amplitude

time