ITPEC IP April 2018 Question 73
ITPEC IP April 2018 — Question 73 of 100
A two-dimensional symbol can store more information than a linear barcode in an equivalent area because it encodes data in both horizontal and vertical directions. Formats such as QR Code also commonly include error-correction capabilities that permit reading even when part of the symbol is damaged.
Answer (c)
Why not others:
- two-dimensional symbols are not limited to horizontal scanning
- many formats can correct, not merely detect, a certain amount of damage
- matrix-code orientation patterns allow reading across a broad range of angles rather than a narrowly adjustable angle
Key rule: Two-dimensional codes provide higher data density and often stronger error correction than one-dimensional barcodes.
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