Physical Security Flashcards
Class A – Fire Extinguisher
Common Combustibles – wood, paper, etc.
Water, Soda Acid
Class B – Fire Extinguisher
Liquids – alcohol, oil, and other petroleum products.
CO2, Halon, Soda Acid
Class C – Fire Extinguisher
Electrical
CO2, Halon
Class D – Fire Extinguisher
Metal
Dry Powder
Fault
A momentary loss of power.
Sag
A momentary low voltage.
Brownout
Prolonged low voltage.
Spike
Momentary high voltage.
Surge
Prolonged high voltage.
Inrush
An initial surge of power associated with connecting to a power source, whether primary or alternate/secondary.
Transient
A short duration of line noise disturbance.
Rooms containing primarily computers should be kept at…
60 to 75 degrees Fahrenheit
Humidity in a computer room should be at…
40 to 60 percent
Functional order of controls
Deterrence –> Denial –> Detection –> Delay
Fences
3-foot – simple deterrent
8-foot – preventive device
Bollards
A strong post designed to stop a car.
Photoelectronic Motion Sensor
Sends a beam of light across a monitored space to a photoelectric sensor. The sensor alerts when the light beam is broken.
Class K – Kitchen Fires
Burning oil or greese.
Wet Chemicals.
Deluge
Similar to dry pipes, except the sprinkler heads are open and larger than dry pipe heads.
Pre-Action
Systems are a combination of wet, dry, or deluge systems, and require two separate triggers to release waters.
What is a Cipher Lock?
A lock that uses a keypad.
