The National Institute of Standards and Technology (NIST) standard pertaining to perimeter protection states
that critical areas should be illuminated up to?

A.
Illuminated at nine feet high with at least three foot-candles

B.
Illuminated at eight feet high with at least three foot-candles

C.
Illuminated at eight feet high with at least two foot-candles

D.
Illuminated at nine feet high with at least two foot-candles

Explanation:
A foot-candle (fc) is an illuminance measurement equal to one lumen per square foot.
The National Institute of Standards and Technology (NIST) standard pertaining to perimeter protection states
that critical areas should be illuminated eight feet high and use two foot-candles, which is a unit that represents
the illumination power of an individual light.
Incorrect Answers:
A: The National Institute of Standards and Technology (NIST) standard pertaining to perimeter protection states
that critical areas should be illuminated eight feet high and use two foot-candles, not nine feet high with at least
three foot-candles. Therefore, this answer is incorrect.
B: The National Institute of Standards and Technology (NIST) standard pertaining to perimeter protection states
that critical areas should be illuminated eight feet high and use two foot-candles, not eight feet high with at least
three foot-candles. Therefore, this answer is incorrect.
D: The National Institute of Standards and Technology (NIST) standard pertaining to perimeter protection states
that critical areas should be illuminated eight feet high and use two foot-candles, not nine feet high with at least
two foot-candles. Therefore, this answer is incorrect.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, p. 1365