A data sample begins with the ASCII marker JFIF and includes a JPEG start-of-image sequence. The file is most likely which type?

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Multiple Choice

A data sample begins with the ASCII marker JFIF and includes a JPEG start-of-image sequence. The file is most likely which type?

Explanation:
When you see the ASCII marker JFIF along with a JPEG start-of-image sequence, you’re looking at a JPEG image. JFIF is the marker for the JPEG File Interchange Format header that typically appears in the APP0 segment of JPEG files, and the start-of-image marker (FFD8) is the standard first marker signaling the beginning of a JPEG stream. PNG files start with a distinct binary signature (not the text “JFIF”), while PDF files begin with a text header like “%PDF-” and executable files start with an MZ header. The combination of JFIF and the JPEG SOI confirms this is a JPEG image.

When you see the ASCII marker JFIF along with a JPEG start-of-image sequence, you’re looking at a JPEG image. JFIF is the marker for the JPEG File Interchange Format header that typically appears in the APP0 segment of JPEG files, and the start-of-image marker (FFD8) is the standard first marker signaling the beginning of a JPEG stream. PNG files start with a distinct binary signature (not the text “JFIF”), while PDF files begin with a text header like “%PDF-” and executable files start with an MZ header. The combination of JFIF and the JPEG SOI confirms this is a JPEG image.

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