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CISSP > Physical Security > Flashcards

Physical Security Flashcards

1
Q

What are the three elements of the fire triangle?

A

Heat
Oxygen
Fuel

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2
Q

In relation to a Class A fire what would the extinguishing method be for common combustibles such as paper, wood, furniture and clothing?

A

Water or Soda Acid

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3
Q

In relation to a Class B fire what would the extinguishing method be for burnable fuels such as gasoline or oil?

A

CO2, Soda Acid or Halon

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4
Q

In relation to a Class C fire what would the extinguishing method be for electrical fires such as computers or electronics?

A

CO2 or Halon

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5
Q

In relation to a Class D fire what would the extinguishing method be for special fires such as chemical or grease fires?

A

May require total immersion or other special techniques

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6
Q

What should the first step be when fighting an electrical fire?

A

Turn off the computer

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7
Q

What is the first priority in any life-saving situation?

A

Saving human lives

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8
Q

What are the 5 electrical hazards that can affect equipment?

A
  • Electrostatic discharge (ESD)
  • Electrical noise
  • Electrical anomalies
  • Lightning strikes
  • Magnetic fields
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9
Q

What is the ideal humidity range for computer equipment?

A

40 to 60%

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10
Q

Is condensation or corrosion caused by lower or higher humidity?

A

higher

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11
Q

What increases the potential for ESD? Lower or higher humidity?

A

Lower

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12
Q

What are two types of electrical noise?

A
  • Electromagnetic Interference (EMI)

- Radio Frequency Interference (RFI)

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13
Q

What are the two types of EMI?

A
  • Common Made Noise

- Traverse Mode Noise

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14
Q

How is common made noise caused?

A

by different charges between hot and ground

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15
Q

How is traverse mode caused?

A

caused by a difference in power between the hot and neutral wires

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16
Q

What is RFI caused by?

A

Electrical components such as fluorescent lighting and electric cables

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17
Q

name 7 types of electric anomalies?

A

Blackout, Fault, Brownout, Sag, Inrush, Spike, Surge

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18
Q

In electric anomaly terms what is a blackout?

A

Total loss of power

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19
Q

In electric anomaly terms what is a fault?

A

Momentary loss of power

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20
Q

In electric anomaly terms what is a brownout?

A

Prolonged drop in voltage

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21
Q

In electric anomaly terms what is a sag?

A

Short drop in voltage

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22
Q

In electric anomaly terms what is a Inrush?

A

Initial power rush

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23
Q

In electric anomaly terms what is a spike?

A

Momentary rush of power

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24
Q

In electric anomaly terms what is a surge?

A

Prolonged rush of power

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25
Q

mnemonic for electric anomalies

A

Bob Frequently Buys Shoes In Shoe Stores

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26
Q

What type of equipment can be affected by magnetic fields?

A

Monitors and storage media

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27
Q

What is HVAC otherwise known as?

A

Heating, Ventilation and Air Conditioning

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28
Q

What does CPTED mean in relation to physical planning, design and constriction of facilities?

A

Crime Prevention Through Environmental Design

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29
Q

What are the 3 basic strategies of CPTED?

A

Natural Access Control
Natural Surveillance
Territorial Re-inforcement

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30
Q

Which CPTED strategy uses security zones (or defensible space) to limit or restrict movement and differentiate between public, semi private and private areas that require differing levels of protection?

A

Natural Access Control

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31
Q

A sidewalk and lighting would be considered which type of CPTED strategy?

A

Natural Access Control

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32
Q

What term compliments Natural Access Controls by using mechanical and/or operational controls windows and door locks, alarms, etc?

A

Target Hardening

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33
Q

Maximising visibility and activity in strategic areas, ie windows to overlook streets and landscaping to eliminate hidden areas is otherwise known as?

A

Natural Surveillance

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34
Q

maintenance activities and displaying prominent signage are categorised under which CPTED strategy?

A

Territorial Re-enforcement

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35
Q

Which type of wall should be used to protect the most sensitive areas?

A

Kevlar (bulletproof)

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36
Q

What is a Plenum?

A

The vacant area above a drop ceiling or below a raised floor

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37
Q

What is positive flow in relation to drainage?

A

Carries drainage away from the building

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38
Q

Which fence height should be used to deter casual trespassers?

A

3 to 4 feet (1 metre)

39
Q

Which fence height should be used that’s too high to climb easily?

A

6 to 7 feet (2 metres)

40
Q

Which fence height should be used to deter more determined intruders?

A

8 feet (2.4 metres) plus 3 strand barbed wire

41
Q

A method of physical access control that consists of a double sets of locked doors or turnstiles is otherwise known as what?

42
Q

What are three advantages of security guards?

A

Discernment
Visibility
Multiple functions

43
Q

What are three disadvantages of security guards?

A

Unpredictability
Imperfections
Cost

44
Q

What is the main advantage of security guards?

A

discernment, ie human judgement when responding to different situations

45
Q

What are the 3 basic types of locks?

A

Preset
Programmable
Electronic

46
Q

Which type of lock consists of latches, cylinders, deadbolts, etc. and requires specific key to open it?

47
Q

What are the 4 common types of smart cards?

A

Magnetic stripe
Optical Coded
Smart card
Proximity Card

48
Q

Which type of smart card uses information that is encoded in a laser burned lattice of digital dots?

A

Optical Coded

49
Q

Which type of card can also contain personal information which can be used to gain access to computer systems?

A

Smart Card

50
Q

What are the 3 common types of proximity cards?

A

Passive
Field Powered
Transponders

51
Q

Which type of proximity card uses the electromagnetic field transmitted by the reader to transmit access information?

52
Q

Which type of proximity card uses active electronics, an RF transmitter and power supply on the card?

A

Field Powered

53
Q

Which type of proximity card uses transceiver, control logic and battery?

A

Transponders

54
Q

Which type of proximity card uses challenge / response?

A

Transponders

55
Q

Infrared light is commonly used for which type of sensor?

A

Photoelectric sensor?

56
Q

What are the three types of motion detectors?

A

Wave Pattern
Capacitance
Audio

57
Q

Which type of motion detector generates a low frequency, ultra-sonic or microwave field over a protect area?

A

Wave Pattern

58
Q

Which type of motion detector monitors an electrical field?

A

Capacitance

59
Q

What does a passive system mean in relation to motion detectors?

A

doesn’t generate a wave pattern or electrical field, ie an audio motion detectors trying to detect abnormal sounds

60
Q

Which type of motion detector traditionally causes the most false alarms?
Wave Pattern
Capacitance
Audio

61
Q

What are the 5 general types of alarm system?

A 
Local System
Central Station System
Proprietary System
Auxiliary Station System
Remote Station System
62
Q 
Which type of alarm system is on-premise and requires local response capability?
Local System
Central Station System
Proprietary System
Auxiliary Station System
Remote Station System
A

Local System

63
Q 
Which type of alarm system is operated and monitored by a private security organisation connected directly to the site?
Local System
Central Station System
Proprietary System
Auxiliary Station System
Remote Station System
A

Central Station System

64
Q 
Which type of alarm system is operated and monitored by a private security organisation, but is located on-premise
Local System
Central Station System
Proprietary System
Auxiliary Station System
Remote Station System
A

Proprietary System

65
Q 
Which type of alarm system uses local police or fire circuits to transmit an alarm to the appropriate police or fire headquarters?
Local System
Central Station System
Proprietary System
Auxiliary Station System
Remote Station System
A

Auxiliary Station System

66
Q 
Which type of alarm system is similar to an auxiliary system except it uses dial-up to contact a police station with a pre-recorded message
Local System
Central Station System
Proprietary System
Auxiliary Station System
Remote Station System
A

Remote Station System

67
Q

What is an EPO in relation to electrical power?

A

Emergency Power Off

68
Q

Why is diesel a better backup power supply than natural gas?

A

Natural Gas can’t be stored on-site, ie reliance on pipeline and external provider

69
Q

What are three protective controls for ESD?

A

Maintain proper humidity levels
Ensure proper grounding
Use anti-static flooring, carpeting, mats, etc.

70
Q

What are 3 protective controls for electrical noise?

A

Install power line conditioners
Ensure proper grounding
Use shielded cabling

71
Q

What is the ideal temperature for computer equipment?

A

50 to 80 degrees Fahrenheit (10 to 26 degrees Celsius)

72
Q

What are the 3 main types of fire detection systems?

A

Heat Sensing
Flame Sensing
Smoke Sensing

73
Q

What are the two types of heat sensors?

A
  • Fixed temperature detector (alarms if heat goes above pre-determined temperature)
  • Rate of rise detector
74
Q

Which type of heat sensor causes more false alarms?

fixed temperature or rate of rise?

A

rate of rise

75
Q

What are the 4 types of smoke detector?

A

Photoelectric
Beam
Ionization
Aspirating

76
Q 
Which smoke Sensor senses variations in light intensity?
Photoelectric
Beam
Ionization
Aspirating
A

photoelectric

77
Q 
Which smoke Sensor senses when smoke interrupts a beam of light?
Photoelectric
Beam
Ionization
Aspirating
A

Beam (similar to photoelectric)

78
Q 
Which smoke Sensor detects disturbances in the normal ionization current of radioactive materials?
Photoelectric
Beam
Ionization
Aspirating
A

Ionization

79
Q 
Which smoke Sensor draws air into a sampling chamber to detect minute amounts of smoke?
Photoelectric
Beam
Ionization
Aspirating
A

Aspirating

80
Q

What are the two primary types of fire suppression systems?

A

Water Sprinkler & Gas discharge

81
Q

What are the four main types of water sprinkler systems?

A

Wet pipe (or closed head)
Dry pipe
Deluge
Preaction

82
Q 
Which type of water sprinkler system is the most commonly used and normally considered the most reliable?
Wet pipe (or closed head)
Dry pipe
Deluge
Preaction
83
Q

What are the disadvantages of wet pipe?

A

flooding or frozen pipes

84
Q

What are the benefits of dry pipe?

A

lower risk of accidental flooding

gives a chance to shut down computer systems

85
Q

What is the difference between deluge and dry pipe?

A

designed to deliver large volumes of water

not commonly used for computer equipped areas

86
Q

Which type of water sprinkler system combines wet and dry pipe? When a heat sensor is triggered, the pipes are charged with water. water isn’t discharged until a fusible link melts

87
Q 
Which type of water sprinkler system is most recommended for computer-equipped areas?
Wet pipe (or closed head)
Dry pipe
Deluge
Preaction
88
Q

What are the 3 types of gas discharge systems?

A

Carbon dioxide
soda acid
gas discharge

89
Q

Which gas discharge system extinguishes fires by removing the fuel element of the fire using chemical compounds?

90
Q

What does a gas discharge system do to the fire triangle?

A

It separates all of the elements

91
Q

Which gas discharge system causes the least damage to computer equipment?
Carbon dioxide
soda acid
gas discharge

A

gas discharge

92
Q

What is the most effective gas discharge system?

93
Q

Why is Halon no longer used as a gas discharge system?

A

depletes the ozone

94
Q

What are the 8 common gases used in gas discharged systems?

A 
FM-200
CEA-410
CEA-308
NAF-S-III
FE-13
Argon
Argonite
Inergen

CISSP (10 decks)

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