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This raised the necessity of answering two questions:

In biometric identification systems, at the beginning, it was soon apparent that truly positive identification could
only be based on physical attributes of a person. This raised the necessity of answering two questions:

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A.
What was the sex of a person and his age?

B.
What part of body to be used and how to accomplish identification that is viable?

C.
What was the age of a person and his income level?

D.
What was the tone of the voice of a person and his habits?

Explanation:
When it became apparent that truly positive identification could only be based on physical attributes of a
person, two questions had to be answered. First, what part of body could be used? Second, how could
identification be accomplished with sufficient accuracy, reliability and speed so as to be viable?
Because most identity authentication requirements take place when people are fully clothed (neck to feet and
wrists), the parts of the body conveniently available for this purpose are the hands, face and eyes.
Incorrect Answers:
A: The sex of a person and his age are not considered in biometric identification systems.
C: The age of a person and his income level are not considered in biometric identification systems.
D: The tone of the voice of a person and his habits are not considered in biometric identification systems.

Tipton, Harold F. and Micki Krause, Information Security Management Handbook, 5th Edition, Auerbach
Publications, Boca Raton, 2006, p. 62


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