Identification requires more matches against templates than does verification.

• A. True
• B. False
• C. Both A and B
• D. Neither A nor B

Answer: (A)

In biometric systems, identification is done with one-to-many comparisons: a sample is matched against many stored templates to find who it might be. Verification is one-to-one: you check the sample against a single claimed identity’s template. Because you’re scanning across a whole gallery, there are more template comparisons and potential matches to consider in identification than in verification. That’s why identification requires more matches against templates than verification.