Biometric Technologies and Modalities Flashcards
6 cards from real CBP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Biometric Technologies and Modalities flashcards as text
Which biometric modality is considered the most widely used for authentication?
Answer: Fingerprint recognition
Fingerprint recognition is the most commonly used biometric authentication method due to its high accuracy and ease of use.
What is the primary advantage of iris recognition compared to other biometric methods?
Answer: Higher accuracy and resistance to spoofing
Iris recognition provides high accuracy and is less prone to spoofing due to the complexity of iris patterns.
Which biometric modality is considered non-contact and widely used for surveillance?
Answer: Facial recognition
Facial recognition is a non-contact biometric method commonly used in surveillance and security applications.
What is the key limitation of voice recognition as a biometric modality?
Answer: Susceptible to background noise and voice changes
Voice recognition can be affected by background noise and voice changes due to illness, making it less reliable in certain environments.
Which biometric method analyzes the blood vessel patterns in a person’s hand?
Answer: Palm vein recognition
Palm vein recognition scans the blood vessel patterns in the palm, offering high security and accuracy for biometric authentication.
What is the main challenge of using gait recognition as a biometric modality?
Answer: Can be affected by footwear and injuries
Gait recognition can be affected by factors such as footwear, injuries, and walking surfaces, making it less consistent.
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