Which description best defines duplex-numeric filing?

Which description best defines duplex-numeric filing?

• A. A filing system that uses a single numeric code with no separators.
• B. A filing approach that sorts records alphabetically by title.
• C. Arrangement of files using two or more sets of code numbers, separated by dashes, commas, periods, or spaces.
• D. A filing method that uses color-coded folders for categories.

Answer: (C)

Duplex-numeric filing involves arranging files using two or more sets of numeric codes, separated by dashes, commas, periods, or spaces. This creates a two-dimensional indexing system, allowing records to be classified and retrieved by multiple criteria—each file carries several numeric codes that can be cross-referenced. The description that specifies two or more code numbers with separators matches this setup exactly. A single numeric code with no separators describes a one-dimensional system, not duplex-numeric. Alphabetical sorting by title uses letters rather than numbers and doesn’t provide multiple numeric codes. Color-coded folders rely on color cues rather than numeric coding, so they don’t define duplex-numeric filing.

Duplex-numeric filing involves arranging files using two or more sets of numeric codes, separated by dashes, commas, periods, or spaces. This creates a two-dimensional indexing system, allowing records to be classified and retrieved by multiple criteria—each file carries several numeric codes that can be cross-referenced. The description that specifies two or more code numbers with separators matches this setup exactly. A single numeric code with no separators describes a one-dimensional system, not duplex-numeric. Alphabetical sorting by title uses letters rather than numbers and doesn’t provide multiple numeric codes. Color-coded folders rely on color cues rather than numeric coding, so they don’t define duplex-numeric filing.