Critical areas should be lighted:

A.
Eight feet high and two feet out.

B.
Eight feet high and four feet out.

C.
Ten feet high and four feet out.

D.
Ten feet high and six feet out.

Explanation:
Critical areas should be lighted eight feet high and two feet out.
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: Critical areas should be lighted eight feet high and two feet out, not eight feet high and four feet out.
Therefore, this answer is incorrect.
B: Critical areas should be lighted eight feet high and two feet out, not ten feet high and four feet out. Therefore,
this answer is incorrect.
D: Critical areas should be lighted eight feet high and two feet out, not ten feet high and six feet out. Therefore,
this answer is incorrect.

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