Which of the following biometric devices has the lowest user acceptance level?
A.
Retina Scan
B.
Fingerprint scan
C.
Hand geometry
D.
Signature recognition
Explanation:
Acceptability in terms of biometric systems refers to considerations of privacy, invasiveness, and psychological
and physical comfort when using the system. For example, a concern with retina scanning systems may be the
exchange of body fluids on the eyepiece or the feeling that a retinal scan could be harmful to the eye. Another
concern would be the retinal pattern that could reveal changes in a person’s health, such as diabetes or high
blood pressure.
Incorrect Answers:
A: While requiring contact with a surface shared by others, a fingerprint scan is generally considered more
acceptable than sharing a surface with other parts of the anatomy.
B: While requiring contact with a surface shared by others, a hand geometry scan is generally considered more
acceptable than sharing a surface with other parts of the anatomy.
C: A signature does not involve contact with a surface shared by others and is therefore more acceptable than
other biometric methods.Krutz, Ronald L. and Russell Dean Vines, The CISSP and CAP Prep Guide: Mastering CISSP and CAP, Wiley
Publishing, Indianapolis, 2007, p. 60
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 191
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