ITPEC IP October 2022 Question 78
ITPEC IP October 2022 — Question 78 of 100
A QR code stores data in a two-dimensional pattern of modules arranged vertically and horizontally. This two-axis encoding gives it greater capacity than a one-dimensional barcode and supports features such as error correction and reading from different orientations.
Answer (d)
Why not others:
- ASCII is a character-encoding scheme
- G-code contains instructions for machine tools
- EAN is a one-dimensional product barcode represented by parallel bars
Key rule: A QR code is a matrix-type two-dimensional code, while conventional EAN barcodes encode information along one dimension.
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