During a fingerprint verification process, which of the following is used to verify identity and authentication?

Question

Options

• AA pressure value is compared with a stored template
• BSets of digits are matched with stored values
• CA hash table is matched to a database of stored value
• DA template of minutiae is compared with a stored template

• A
  2% (1)
• B
  5% (2)
• C
  2% (1)
• D
  91% (40)

Explanation

Fingerprint verification works by extracting minutiae - the unique ridge endings, bifurcations, and other distinctive points in a fingerprint - and storing them as a template. During authentication, the system captures a new fingerprint, extracts its minutiae, and compares that pattern against the stored template; a sufficient match confirms identity, making D correct.

Why the distractors fail:

• A is wrong because fingerprint scanners don't measure or compare pressure values - pressure is irrelevant to identity matching.
• B describes something closer to PIN/password verification, not biometric fingerprint analysis.
• C confuses the concept - hash tables are data structures used in computing lookups, not a mechanism for biometric template comparison.

Memory tip: Think of minutiae as the fingerprint's "unique address points." Just as two people can share a street but not an exact GPS coordinate set, two fingers share general ridge patterns but never the same minutiae map - so it's always template vs. template, point by point.

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