Physical Security Flashcards
(94 cards)
1
Q
What are the three elements of the fire triangle?
A
Heat
Oxygen
Fuel
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
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
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
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
6
Q
What should the first step be when fighting an electrical fire?
A
Turn off the computer
7
Q
What is the first priority in any life-saving situation?
A
Saving human lives
8
Q
What are the 5 electrical hazards that can affect equipment?
A
- Electrostatic discharge (ESD)
- Electrical noise
- Electrical anomalies
- Lightning strikes
- Magnetic fields
9
Q
What is the ideal humidity range for computer equipment?
A
40 to 60%
10
Q
Is condensation or corrosion caused by lower or higher humidity?
A
higher
11
Q
What increases the potential for ESD? Lower or higher humidity?
A
Lower
12
Q
What are two types of electrical noise?
A
- Electromagnetic Interference (EMI)
- Radio Frequency Interference (RFI)
13
Q
What are the two types of EMI?
A
- Common Made Noise
- Traverse Mode Noise
14
Q
How is common made noise caused?
A
by different charges between hot and ground
15
Q
How is traverse mode caused?
A
caused by a difference in power between the hot and neutral wires
16
Q
What is RFI caused by?
A
Electrical components such as fluorescent lighting and electric cables
17
Q
name 7 types of electric anomalies?
A
Blackout, Fault, Brownout, Sag, Inrush, Spike, Surge
18
Q
In electric anomaly terms what is a blackout?
A
Total loss of power
19
Q
In electric anomaly terms what is a fault?
A
Momentary loss of power
20
Q
In electric anomaly terms what is a brownout?
A
Prolonged drop in voltage
21
Q
In electric anomaly terms what is a sag?
A
Short drop in voltage
22
Q
In electric anomaly terms what is a Inrush?
A
Initial power rush
23
Q
In electric anomaly terms what is a spike?
A
Momentary rush of power
24
Q
In electric anomaly terms what is a surge?
A
Prolonged rush of power
25
mnemonic for electric anomalies
Bob Frequently Buys Shoes In Shoe Stores
26
What type of equipment can be affected by magnetic fields?
Monitors and storage media
27
What is HVAC otherwise known as?
Heating, Ventilation and Air Conditioning
28
What does CPTED mean in relation to physical planning, design and constriction of facilities?
Crime Prevention Through Environmental Design
29
What are the 3 basic strategies of CPTED?
Natural Access Control
Natural Surveillance
Territorial Re-inforcement
30
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?
Natural Access Control
31
A sidewalk and lighting would be considered which type of CPTED strategy?
Natural Access Control
32
What term compliments Natural Access Controls by using mechanical and/or operational controls windows and door locks, alarms, etc?
Target Hardening
33
Maximising visibility and activity in strategic areas, ie windows to overlook streets and landscaping to eliminate hidden areas is otherwise known as?
Natural Surveillance
34
maintenance activities and displaying prominent signage are categorised under which CPTED strategy?
Territorial Re-enforcement
35
Which type of wall should be used to protect the most sensitive areas?
Kevlar (bulletproof)
36
What is a Plenum?
The vacant area above a drop ceiling or below a raised floor
37
What is positive flow in relation to drainage?
Carries drainage away from the building
38
Which fence height should be used to deter casual trespassers?
3 to 4 feet (1 metre)
39
Which fence height should be used that's too high to climb easily?
6 to 7 feet (2 metres)
40
Which fence height should be used to deter more determined intruders?
8 feet (2.4 metres) plus 3 strand barbed wire
41
A method of physical access control that consists of a double sets of locked doors or turnstiles is otherwise known as what?
Mantrap
42
What are three advantages of security guards?
Discernment
Visibility
Multiple functions
43
What are three disadvantages of security guards?
Unpredictability
Imperfections
Cost
44
What is the main advantage of security guards?
discernment, ie human judgement when responding to different situations
45
What are the 3 basic types of locks?
Preset
Programmable
Electronic
46
Which type of lock consists of latches, cylinders, deadbolts, etc. and requires specific key to open it?
Preset
47
What are the 4 common types of smart cards?
Magnetic stripe
Optical Coded
Smart card
Proximity Card
48
Which type of smart card uses information that is encoded in a laser burned lattice of digital dots?
Optical Coded
49
Which type of card can also contain personal information which can be used to gain access to computer systems?
Smart Card
50
What are the 3 common types of proximity cards?
Passive
Field Powered
Transponders
51
Which type of proximity card uses the electromagnetic field transmitted by the reader to transmit access information?
Passive?
52
Which type of proximity card uses active electronics, an RF transmitter and power supply on the card?
Field Powered
53
Which type of proximity card uses transceiver, control logic and battery?
Transponders
54
Which type of proximity card uses challenge / response?
Transponders
55
Infrared light is commonly used for which type of sensor?
Photoelectric sensor?
56
What are the three types of motion detectors?
Wave Pattern
Capacitance
Audio
57
Which type of motion detector generates a low frequency, ultra-sonic or microwave field over a protect area?
Wave Pattern
58
Which type of motion detector monitors an electrical field?
Capacitance
59
What does a passive system mean in relation to motion detectors?
doesn't generate a wave pattern or electrical field, ie an audio motion detectors trying to detect abnormal sounds
60
Which type of motion detector traditionally causes the most false alarms?
Wave Pattern
Capacitance
Audio
Audio
61
What are the 5 general types of alarm system?
```
Local System
Central Station System
Proprietary System
Auxiliary Station System
Remote Station System
```
62
```
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
```
Local System
63
```
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
```
Central Station System
64
```
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
```
Proprietary System
65
```
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
```
Auxiliary Station System
66
```
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
```
Remote Station System
67
What is an EPO in relation to electrical power?
Emergency Power Off
68
Why is diesel a better backup power supply than natural gas?
Natural Gas can't be stored on-site, ie reliance on pipeline and external provider
69
What are three protective controls for ESD?
Maintain proper humidity levels
Ensure proper grounding
Use anti-static flooring, carpeting, mats, etc.
70
What are 3 protective controls for electrical noise?
Install power line conditioners
Ensure proper grounding
Use shielded cabling
71
What is the ideal temperature for computer equipment?
50 to 80 degrees Fahrenheit (10 to 26 degrees Celsius)
72
What are the 3 main types of fire detection systems?
Heat Sensing
Flame Sensing
Smoke Sensing
73
What are the two types of heat sensors?
- Fixed temperature detector (alarms if heat goes above pre-determined temperature)
- Rate of rise detector
74
Which type of heat sensor causes more false alarms?
| fixed temperature or rate of rise?
rate of rise
75
What are the 4 types of smoke detector?
Photoelectric
Beam
Ionization
Aspirating
76
```
Which smoke Sensor senses variations in light intensity?
Photoelectric
Beam
Ionization
Aspirating
```
photoelectric
77
```
Which smoke Sensor senses when smoke interrupts a beam of light?
Photoelectric
Beam
Ionization
Aspirating
```
Beam (similar to photoelectric)
78
```
Which smoke Sensor detects disturbances in the normal ionization current of radioactive materials?
Photoelectric
Beam
Ionization
Aspirating
```
Ionization
79
```
Which smoke Sensor draws air into a sampling chamber to detect minute amounts of smoke?
Photoelectric
Beam
Ionization
Aspirating
```
Aspirating
80
What are the two primary types of fire suppression systems?
Water Sprinkler & Gas discharge
81
What are the four main types of water sprinkler systems?
Wet pipe (or closed head)
Dry pipe
Deluge
Preaction
82
```
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
```
Wet pipe
83
What are the disadvantages of wet pipe?
flooding or frozen pipes
84
What are the benefits of dry pipe?
lower risk of accidental flooding
| gives a chance to shut down computer systems
85
What is the difference between deluge and dry pipe?
designed to deliver large volumes of water
| not commonly used for computer equipped areas
86
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
preaction
87
```
Which type of water sprinkler system is most recommended for computer-equipped areas?
Wet pipe (or closed head)
Dry pipe
Deluge
Preaction
```
preaction
88
What are the 3 types of gas discharge systems?
Carbon dioxide
soda acid
gas discharge
89
Which gas discharge system extinguishes fires by removing the fuel element of the fire using chemical compounds?
Soda Acid
90
What does a gas discharge system do to the fire triangle?
It separates all of the elements
91
Which gas discharge system causes the least damage to computer equipment?
Carbon dioxide
soda acid
gas discharge
gas discharge
92
What is the most effective gas discharge system?
FM-200
93
Why is Halon no longer used as a gas discharge system?
depletes the ozone
94
What are the 8 common gases used in gas discharged systems?
```
FM-200
CEA-410
CEA-308
NAF-S-III
FE-13
Argon
Argonite
Inergen
```
