Industry Best Practices Flashcards

A commonly cited standard for a security chain-link perimeter fence is what overall height, including the top guard?

Answer: 8 feet

Typical guidance calls for 7 feet of fabric plus about 1 foot of barbed-wire top guard, roughly 8 feet total.

Why are clear zones maintained on both sides of a perimeter fence?

Answer: To give unobstructed observation and deny cover to intruders

Clear zones remove concealment and give guards and cameras a clear view of anyone approaching the fence.

An access control system's anti-passback feature is designed to prevent which behavior?

Answer: Handing a credential back to let a second person enter

Anti-passback rejects a credential that has not logged an exit, which defeats passing it back through the door.

Which statement about electromagnetic (maglocks) is correct?

Answer: They are inherently fail-safe and release when power is lost

A maglock holds only while energized, so losing power releases the door.

Which standard is used to crash-test and rate perimeter vehicle barriers in the United States?

Answer: ASTM F2656

ASTM F2656 rates vehicle barriers by vehicle weight, impact speed, and penetration distance, for example M50.

In a security risk assessment, risk is most commonly expressed as a function of which factors?

Answer: Threat, vulnerability, and consequence

Risk combines how likely a threat is, how exposed the asset is, and the impact if the threat succeeds.

Which U.S. federal law governs the use of third-party background reports for pre-employment screening of security staff?

Answer: Fair Credit Reporting Act (FCRA)

The FCRA requires disclosure, written authorization, and adverse-action notices when employers use consumer reports.