What graphics format is a bitmap image format supporting up to 8 bits per pixel and referencing a palette of up to 256 colors?

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Multiple Choice

What graphics format is a bitmap image format supporting up to 8 bits per pixel and referencing a palette of up to 256 colors?

Bitmap image formats that use a color palette store each pixel as an index into a limited color set. With 8 bits per pixel, you can represent 2^8 = 256 different color indices, so the image can display up to 256 colors chosen from a palette. GIF is exactly this kind of indexed-color bitmap format: it uses a palette of up to 256 colors and pixels point to colors in that palette. That’s why it fits the description. The other options aren’t graphics formats that rely on a palette: full-motion video is video data, and G.711 and G.722 are audio codecs.

Bitmap image formats that use a color palette store each pixel as an index into a limited color set. With 8 bits per pixel, you can represent 2^8 = 256 different color indices, so the image can display up to 256 colors chosen from a palette. GIF is exactly this kind of indexed-color bitmap format: it uses a palette of up to 256 colors and pixels point to colors in that palette. That’s why it fits the description.

The other options aren’t graphics formats that rely on a palette: full-motion video is video data, and G.711 and G.722 are audio codecs.

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