Paralegal Advanced Competency Exam (PACE) Practice Exam

How much can a CD-ROM typically hold in terms of images at 300 dpi?

1. 5,000 to 8,000 images

2. 10,000 to 12,000 images

3. 12,000 to 15,000 images

4. 20,000 to 25,000 images

The correct answer is: 12,000 to 15,000 images

A CD-ROM typically has a storage capacity of about 650 MB to 700 MB. When considering images at a resolution of 300 dpi, the size of each image depends on its dimensions in pixels. A standard image at 300 dpi might be, for example, 4 inches by 6 inches, leading to a resolution of 1200 x 1800 pixels. Calculating the size of that image, assuming 24 bits per pixel (true color), gives us: - 1,200 pixels × 1,800 pixels × 3 bytes (for red, green, and blue channels) = 6,480,000 bytes or approximately 6.48 MB per image. Given that a CD-ROM can hold roughly 700 MB, dividing the storage by the size of each image yields about 107 images. However, if we consider smaller images or images with less color depth, the storage capacity increases significantly. The option providing the range of 12,000 to 15,000 images accounts for smaller image dimensions, reduced color depth, or efficient compression techniques that allow more images to fit into the same space. This range reflects a more practical scenario of CD-ROM storage capabilities when handling a large number of images