CISSP – Information Systems Security Architecture Professional (ISSAP) — Question 65

Which of the following heights of fence deters only casual trespassers?

Answer options

• A. 8 feet
• B. 3 to 4 feet
• C. 2 to 2.5 feet
• D. 6 to 7 feet

Correct answer: B

Explanation

A fence height of 3 to 4 feet is generally seen as sufficient to deter casual trespassers, as it presents a low barrier that can easily be climbed over by determined individuals. In contrast, heights of 2 to 2.5 feet provide minimal security and are easily bypassed, while 6 to 7 feet and 8 feet fences are more effective for serious intruders but are not necessary for casual trespassers.