3.3 Physical

Question 1

power

Answer 1

fault: momentary loss
blackout: complete loss
sag: momentary low voltage
brownout: prolonged low voltage
spike: momentary high voltage
surge: prolonged high voltage
inrush: initial surge
noise: interfering disturbance
transient: short duration noise

Question 2

environment

Answer 2

60-75 Fahrenheit

40-60% humidity

Question 3

critical path analysis

Answer 3

identifies relationships between mission-critical apps, processes and operations and gives complete picture of interdependencies

-> used to create a secure facility plan

Question 4

fire

Answer 4

A common combustiles: water, soda acid
B Liquids: co2, halon, soda acid
C Electrical: co2, halon
D Metal: dry powder
K/F Kitchen: wet chemicals

Question 5

water

Answer 5

wet pipe: always full
dry pipe: contains supressed air
deluge: dry with larger pipes, not for IT
preaction: combination of dry/wet. allows manual intervention. most appropriate for IT

Question 6

halon substitutes

Answer 6

FM200
CEA410
NAF-SIII
FE13
Aagon

Question 7

fencing

Answer 7

4 foot for casual intruder (1,20) - deterrent
8 foot (2,40) preventive

Question 8

lightning

Answer 8

8 foot high, 2 around

Question 9

gates

Answer 9

class I: home use
class II: commercial
class III: industrial
class IV: restricted (prison/airport)

Question 10

fresnel light

Answer 10

spotted direction

Question 11

sensors

Answer 11

ultrasonic and microwave use doppler effect
infrared measures heat
photoelectric = Lichtschranke/Rauchmeldeer

Question 12

evacuation

Answer 12

safety warden role: ensures, that all personell safely evacuate the building

meeting point leader: responsible for accounting at meeting point

Question 13

inference

Answer 13

deduce sensitive information from public info