ITPEC IP October 2024 Question 74
ITPEC IP October 2024 — Question 74 of 100
A QR code stores information in a two-dimensional arrangement of dark and light modules. Because data is encoded both horizontally and vertically, a QR code can carry more information than a conventional one-dimensional barcode in a compact area. Position patterns help a scanner locate and orient the symbol, and error correction can permit reading despite limited damage.
Answer (d)
Why not others:
- (a) ASCII assigns numeric character codes and is not a printed two-dimensional symbol
- (b) G-code contains machine-tool or 3D-printer movement instructions
- (c) EAN code is normally represented as a one-dimensional retail barcode
Key rule: QR is a two-dimensional matrix code; EAN is a linear barcode, ASCII encodes characters, and G-code controls machines.
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.