Suggested Answer:D🗳️
The most commonly used fence is the chain linked fence and it is the most affordable. The standard is a six-foot high fence with two-inch mesh square openings. The material should consist of nine-gauge vinyl or galvanized metal. Nine-gauge is a typical fence material installed in residential areas. Additionally, it is recommended to place barbed wire strands angled out from the top of the fence at a 45 angle and away from the protected area with three strands running across the top. This will provide for a seven-foot fence. There are several variations of the use of "top guards" using V-shaped barbed wire or the use of concertina wire as an enhancement, which has been a replacement for more traditional three strand barbed wire "top guards." The fence should be fastened to ridged metal posts set in concrete every six feet with additional bracing at the corners and gate openings. The bottom of the fence should be stabilized against intruders crawling under by attaching posts along the bottom to keep the fence from being pushed or pulled up from the bottom. If the soil is sandy, the bottom edge of the fence should be installed below ground level. For maximum security design, the use of double fencing with rolls of concertina wire positioned between the two fences is the most effective deterrent and cost- efficient method. In this design, an intruder is required to use an extensive array of ladders and equipment to breach the fences. Most fencing is largely a psychological deterrent and a boundary marker rather than a barrier, because in most cases such fences can be rather easily penetrated unless added security measures are taken to enhance the security of the fence. Sensors attached to the fence to provide electronic monitoring of cutting or scaling the fence can be used. Reference(s) used for this question: Hernandez CISSP, Steven (2012-12-21). Official (ISC)2 Guide to the CISSP CBK, Third Edition ((ISC)2 Press) (Kindle Locations 24416-24431). Auerbach Publications. Kindle Edition.
The effectiveness of a fence for maximum security depends on various factors beyond just height, such as the site's characteristics, purpose, and the level of security required. However, among the options provided, **C. 8' high and above with strands of barbed wire** tends to be more effective for maximum security.
A higher fence makes it more challenging for intruders to climb or breach, and the addition of barbed wire provides an extra deterrent against unauthorized access. However, the selection of the fence should also consider other factors like surveillance, lighting, and other security measures for a comprehensive security approach.
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nanson
4 months, 4 weeks ago