What physical characteristic does a retinal scan biometric device measure?
A.
The amount of light reaching the retina
B.
The amount of light reflected by the retina
C.
The pattern of light receptors at the back of the eye
D.
The pattern of blood vessels at the back of the eye
Explanation:
A Retina Scan is a biometric system that scans the blood-vessel pattern of the retina on the backside of the
eyeball.
Incorrect Answers:
A: Retina Scans do not measure the amount of light reaching the retina, but scans the blood-vessel pattern of
the retina on the backside of the eyeball.
B: Retina Scans do not measure the amount of light reflected by the retina, but scans the blood-vessel pattern
of the retina on the backside of the eyeball.
C: Retina Scans do not measure the pattern of light receptors at the back of the eye, but scans the bloodvessel pattern of the retina on the backside of the eyeball.Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 191