Chapter 10 Flashcards
(17 cards)
PIDAS
Perimeter intrusion detection and assessment system;
Tall inner wall with lower outer walls to create gap
Physical security order of operations
Deter
Deny
Detect
Delay
Determine
Decide
MTTF - replace before that
MTTR - time to repair
SCIF - sensitive compartmented information facility
Usually by gov’t agencies and contractors to store/view/update sensitive info
UPS
Double conversion - battery is inline
Line-interactive - switch over to battery on failure
Fault: A momentary loss of power
Blackout: A complete loss of power
Sag: Momentary low voltage
Brownout: Prolonged low voltage
Spike: Momentary high voltage
Surge: Prolonged high voltage
Inrush: An initial surge of power usually associated with connecting to a power source, whether primary or alternate/secondary
Ground: The wire in an electrical circuit that provides an alternate pathway for electricity to flow to the earth (i.e., the ground)
Data center
Temp: 15 - 32 C
Humidity: 20 - 80 %
Fire Triangle
Fuel, Heat, Oxygen
Fire Extinguisher Classes
A: Common combustibles - water, soda acid
B: Liquids - CO2, gas, soda acid
C: Electrical - CO2, gas
D: Metal - dry powder
K: Cooking Oil, etc. - alkaline mixtures
Fire detection mechanisms
Rate of rise
Flame actuated
Smoke actuated
Incipient smoke detect - detects chemicals
Water suppression
Wet
Dry - fill on trigger
Preaction - 2 stages (fill, then release)
Deluge - large volume release
Access control vestibule or mantrap
Double doored; prevent piggybacking or tailgaiting
AREX - automatic request to exit
BMS (Balanced Magnetic Switch) - detect door/window open
Lighting - min 2 lumens, 20 lux
Walls
3 - 4 ft: casual trespassers
6 - 7 ft: most intruders except determined ones
8ft + barbed wire: most intruders
Critical Path Analysis
Systematic effort to identify
relationships between mission-critical applications, processes, and
operations and all the necessary supporting elements, both physical
and technological.
