# Digital Media Quiz

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Louism
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Quizzes Created: 2 | Total Attempts: 18,131
Questions: 15 | Attempts: 1,806

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Answer the following questions after reading the DIGITAL MEDIA pages posted on the class web site.

• 1.

### A *halftone* is a pattern of tiny dots used by

• A.

Newspapers

• B.

Books

• C.

Magazines

• D.

All of the above

• E.

None of the above

D. All of the above
Explanation
A halftone is a pattern of tiny dots that is used in various print media such as newspapers, books, and magazines. It is a technique used to simulate continuous-tone images using a limited number of ink colors. By varying the size and density of the dots, different shades and tones can be created, resulting in a more realistic representation of the original image. Therefore, the correct answer is "all of the above" as halftones are commonly used in newspapers, books, and magazines.

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• 2.

### Computers reproduce photos by breaking the image up into small squares called

• A.

Pixels

• B.

Bytes

• C.

Bits

A. Pixels
Explanation
Computers reproduce photos by breaking the image up into small squares called pixels. Pixels are the smallest unit of a digital image, and each pixel represents a single point of color. By combining these pixels together, the computer can recreate the entire image. Bytes and bits, on the other hand, are units of digital information storage and do not directly relate to reproducing photos.

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• 3.

### Black and white pictures require less information because all that needs to be recorded is its position and its

• A.

Color information

• B.

• C.

Location

Explanation
Black and white pictures require less information because they only need to record the shade of gray for each pixel. Unlike color pictures, which require additional information for each pixel's color values, black and white pictures can be represented with a single value for each pixel. Therefore, the amount of information needed to store and transmit black and white pictures is significantly lower.

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• 4.

### A color pixel needs three numbers to define its color: one number each to indicate how much

• A.

Cyan, magenta, yellow

• B.

Red, yellow, blue

• C.

Red, green, and blue

C. Red, green, and blue
Explanation
The correct answer is red, green, and blue. This is because a color pixel in digital imaging is typically represented using the RGB color model, where each color component is represented by a number ranging from 0 to 255. Red, green, and blue are the primary colors used in this model to create a wide range of colors by varying the intensity of each component.

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• 5.

• A.

True

• B.

False

B. False
• 6.

### A RASTER image is a rectangular grid of

• A.

Lines

• B.

Dots

• C.

Pixels

• D.

All of the above

C. Pixels
Explanation
A raster image is a digital image that is composed of a rectangular grid of pixels. Pixels are the smallest units of a digital image, and they are used to represent the colors and details of the image. Therefore, the correct answer is "pixels" as it accurately describes the composition of a raster image.

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• 7.

### VECTOR graphics are based on

• A.

Color depth

• B.

Mathematical equations

• C.

Photographs

B. Mathematical equations
Explanation
VECTOR graphics are based on mathematical equations. Unlike raster graphics, which are based on pixels, vector graphics use mathematical formulas to represent and render images. These formulas define the shapes, curves, lines, and colors of the graphics, allowing them to be scaled and manipulated without losing quality. This makes vector graphics ideal for tasks such as logo design, illustration, and printing, where scalability and precision are important. Color depth and photographs, on the other hand, are characteristics or elements associated with raster graphics.

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• 8.

### Adobe Illustrator is a software program that uses

• A.

Mathematical equations

• B.

Vector graphics

• C.

Bezier curves

• D.

Anchor points

• E.

None of the above

• F.

All of the above

F. All of the above
Explanation
Adobe Illustrator is a comprehensive software program that incorporates various features and tools to create vector graphics. It utilizes mathematical equations to define the shapes and curves of the graphics. The use of vector graphics allows for scalability without loss of quality. Bezier curves are commonly used in Illustrator to create smooth and precise curves. Anchor points are used to define the start and end points of the curves and shape. Therefore, all of the given options - mathematical equations, vector graphics, bezier curves, and anchor points - are correct in describing the features and functionality of Adobe Illustrator.

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• 9.

### The total number of pixels in an image is referred to as the image's

• A.

Resolution

• B.

Raster

• C.

Color depth

• D.

Both A and C

• E.

None of the above

A. Resolution
Explanation
The correct answer is "resolution" because the total number of pixels in an image refers to its resolution. Resolution is a measure of the amount of detail that an image holds and is typically expressed as the number of pixels in the width and height of the image. A higher resolution means more pixels, resulting in a clearer and more detailed image. Therefore, resolution is the correct term to describe the total number of pixels in an image.

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• 10.

### A JPEG image is a "lossy" format, which means that

• A.

The number of pixels in the image can be increased without loss of quality.

• B.

The image is compressed each time it is saved and could degrade.

B. The image is compressed each time it is saved and could degrade.
Explanation
A JPEG image is a "lossy" format, meaning that it undergoes compression each time it is saved. This compression process reduces the file size by discarding some of the image data, resulting in a loss of quality. Therefore, each time a JPEG image is saved, there is a potential for degradation in its visual fidelity.

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• 11.

### A TIFF image is most often used for work that is printed and saves

• A.

8 bits per color

• B.

16 bits per color

• C.

Both A and B

C. Both A and B
Explanation
A TIFF image is commonly used for work that is printed because it can save both 8 bits per color and 16 bits per color. This flexibility allows for a wide range of color depths and ensures that the image can be accurately reproduced in print. Saving in 8 bits per color is suitable for most standard printing needs, while saving in 16 bits per color provides a higher level of detail and color accuracy for professional printing or advanced editing purposes.

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• 12.

### Images in RAW format is "lossless"

• A.

True

• B.

False

A. True
Explanation
RAW format is a type of image file that contains minimally processed data directly from the camera's sensor. It preserves all the original data captured by the sensor, including color information and dynamic range, without any compression or loss of quality. Therefore, images in RAW format are considered "lossless" because they retain all the details and information from the original image.

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• 13.

### A GIF image uses a limited color palette and is best used for

• A.

Simple shapes and cartoon-like images

• B.

Printing photographs

• C.

Halftones

A. Simple shapes and cartoon-like images
Explanation
A GIF image uses a limited color palette, typically up to 256 colors, which makes it suitable for simple shapes and cartoon-like images. This format is not ideal for printing photographs or halftones, as these require a wider range of colors and finer details. Therefore, GIF is commonly used for graphics with solid colors and sharp edges, such as logos, icons, and illustrations.

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• 14.

### PNG images are "lossless" and therefore their file size is ______________ than JPEG images.

• A.

Smaller

• B.

Larger

B. Larger
Explanation
PNG images are "lossless" because they do not lose any quality or data during compression. This means that all the original information from the image is preserved, resulting in a larger file size compared to JPEG images. JPEG images, on the other hand, use lossy compression, which sacrifices some image quality to reduce file size. Therefore, PNG images have a larger file size than JPEG images.

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• 15.

### BMP files are large files developed for use mostly with

• A.

Windows programs

• B.

Macintosh programs

• C.

Scanners

• D.

Both B and C

• E.

Both A and C

E. Both A and C
Explanation
BMP files are large files that are developed for use mostly with Windows programs and scanners. They are also compatible with Macintosh programs. Therefore, the correct answer is both A and C.

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• Current Version
• Mar 22, 2023
Quiz Edited by
ProProfs Editorial Team
• May 23, 2011
Quiz Created by
Louism

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