Physical Security

Question 1

Surveillance

Answer 1

CCTV (Closed Circuit TV)
PTZ (Pan Tilt Zoom)

Question 2

FAR

Answer 2

False Acceptance Rate:
Rate that a system authenticates a user as authorized or valid when they should not have been granted access to the system

Question 3

FRR

Answer 3

False Rejection Rate:
Rate that a system denies a user as authorized or valid when they should have been granted access to the system

Question 4

CER

Answer 4

Crossover Error Rate:
An equal error rate (ERR) where the false acceptance rate and false rejection rate are equal

CER measures the effectiveness of a biometric system

Question 5

Biometrics: Retinal vs. Iris Scanner

Answer 5

Retinal Scanner:
Unique capillary structure in the back of the eye

Iris Scanner:
Scans for texture/color of the eye

Question 6

Biometrics: Gait Analysis

Answer 6

Identifies person based on how they walk
Many unique measurements

Question 7

Biometrics: Veins

Answer 7

Vascular scanners
Match the blood vessels visible from the surface of skin

Question 8

Air Gap

Answer 8

Physical separation between networks
Secure & insecure network

Specialized networks require air gaps:
Stock market networks
SCADA/Power systems
Airplanes
Nuclear power plant operations