ITPEC IP October 2025 Question 76
ITPEC IP October 2025 — Question 76 of 100
A QR code can be read from any direction — its position-detection patterns allow a scanner to determine orientation and decode the two-dimensional symbol after rotation.
Because information is arranged both horizontally and vertically, a QR code stores substantially more data than a conventional one-dimensional barcode and can encode several kinds of characters. Error correction can also permit reading when part of the symbol is damaged.
Answer (c)
Why not others:
- (a) QR codes are not limited to single-byte alphanumeric characters and symbols
- (b) their data capacity is much greater than an ordinary barcode's
- (d) the modules form a two-dimensional matrix rather than three stacked barcode layers
Key rule: QR is a matrix-type two-dimensional code characterized by high capacity, omnidirectional reading, and error correction.
AI-generated — may contain errors
The original exam layout is preserved in the image so diagrams, formulas, tables, and code remain accurate.
This question comes from an official ITPEC past paper. ITPEC Practice is an independent study tool and is not affiliated with ITPEC. See the official IP past-paper collection or Report an issue.