2.3 Physical security

Question 1

What is physical security

Answer 1

Protection of people, property, and physical assets from actions/events that could cause damage, loss or unauthorised access

Question 2

What is Crime Prevention through Environmental Design (CPTED)?

Answer 2

Design and effective use of physical environment that can lead to a reduction of incidents and fear of crime and increase safety.

Question 3

What are the two modes for physical security

Answer 3

Fail-safe: in an emergency or fault situation, controls will default to open (unlocked)

Fail-secure: In an emergency, controls will default to closed (locked)

Question 4

Where should the data centre be located?

Answer 4

• Centre of a facility with no external windows or doors (limits access controls)
• Located on floors other than basement -> in case of flooding, damps, the ground floor is too accessible, there may be access from ceilings, leaks or damage from storms
• Full walls from floor to ceiling
• non-partitioned ceilings

Question 5

What are common site security controls?

Answer 5

Lighting - for personal safety and can deter intruders as they can be seen

Signs - Deterrence (signs of surveillance) and personal safety

Barriers - Walls, fences, gates, bollards, and access control vestibules

Guards - Stationed at checkpoints, patrol the area, manage surveillance, and respond to breaches and/or suspicious activity

Question 6

What are the surveillance sensors?

Answer 6

Sensors are used to monitor and detect suspicious behaviour

Question 7

What is an Ultrasonic Sensor?

Answer 7

Proximity sensor that measures the distance of a target by sending ultrasonic sound waves and converting the reflected sound into an electrical signal

Question 8

What is a Microwave Sensor?

Answer 8

Senses movement within an invisible field of energy (between the transmitter (Tx) and receiver (Rx))

Question 9

What is a Pressure Sensor?

Answer 9

Changes in surface weight

Question 10

What is a Contact Sensor?

Answer 10

Sense penetration or break in an electrical circuit

Question 11

What is an Acoustical

Answer 11

Senses changes in noise

Question 12

What is a Photometric sensor

Answer 12

Senses changes in light

Question 13

What is a motion sensor?

Answer 13

Senses changes in movement

Question 14

What is a passive infrared sensor?

Answer 14

Senses changes in heat signature