Discover which image file type – raster, vector, metafile, or catalog – can be enlarged by 500% without any loss of quality. Prepare for the EC-Council 312-49v10 certification exam with this detailed explanation.
Table of Contents
Question
A picture file is recovered from a computer under investigation. During the investigation process, the file is enlarged 500% to get a better view of its contents. The picture quality is not degraded at all from this process. What kind of picture is this file?
A. Raster image
B. Vector image
C. Metafile image
D. Catalog image
Answer
B. Vector image
Explanation
Vector images are created using mathematical formulas and geometric primitives, such as points, lines, and curves, to represent the image. Unlike raster images, which are composed of a fixed number of pixels, vector images are resolution-independent. This means that vector images can be scaled up or down to any size without losing quality or becoming pixelated.
When a vector image is enlarged by 500%, the mathematical formulas used to create the image are simply recalculated to maintain the image’s proportions and sharpness. As a result, the enlarged image will appear just as crisp and clear as the original, with no degradation in quality.
In contrast, raster images (option A) are made up of a fixed number of pixels and will lose quality when enlarged significantly, as the pixels become more visible and the image appears blocky or pixelated. Metafile images (option C) and catalog images (option D) are not commonly used image formats and do not have the same scaling properties as vector images.
Therefore, the correct answer is B. Vector image, as it is the only image type among the given options that can maintain its quality when enlarged by 500%.
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