CBP Biometric Technologies and Modalities

Question 1

Which biometric modality is considered the most widely used for authentication?

Accepted Answer

Fingerprint recognition

Answer

Voice recognition

Answer

Gait analysis

Answer

Ear shape recognition

Question 2

What is the primary advantage of iris recognition compared to other biometric methods?

Accepted Answer

Higher accuracy and resistance to spoofing

Answer

Lower cost than fingerprint scanning

Answer

Requires physical contact for verification

Answer

Faster processing than facial recognition

Question 3

Which biometric modality is considered non-contact and widely used for surveillance?

Accepted Answer

Facial recognition

Answer

Palm vein recognition

Answer

Retina scanning

Answer

Hand geometry

Question 4

What is the key limitation of voice recognition as a biometric modality?

Accepted Answer

Susceptible to background noise and voice changes

Answer

Limited use in mobile devices

Answer

Requires high-resolution cameras

Answer

Not widely used in authentication

Question 5

Which biometric method analyzes the blood vessel patterns in a person’s hand?

Accepted Answer

Palm vein recognition

Answer

Gait recognition

Answer

Retina scanning

Answer

Facial thermography

Question 6

What is the main challenge of using gait recognition as a biometric modality?

Accepted Answer

Can be affected by footwear and injuries

Answer

Requires expensive hardware

Answer

Requires physical contact

Answer

Limited to medical applications