Biometric systems are used for which of the following applications?

Biometric systems are used for which of the following applications?

• A. Withdrawing money from ATMs.
• B. Streaming media playback.
• C. Writing documents.
• D. Scheduling calendar events.

Answer: (A)

Biometric systems verify a person’s identity using unique physical traits, such as a fingerprint, iris pattern, or facial features. This makes it possible to confirm you are the rightful account holder before granting access to sensitive resources. Withdrawing money from an ATM is a security-critical task where you must prove you are the actual owner of the account, so biometric verification is a practical and common use. The other activities—streaming media, writing documents, and scheduling calendar events—don’t typically require proving identity to access the service in the same way, so biometric authentication isn’t generally used for those tasks.

Biometric systems verify a person’s identity using unique physical traits, such as a fingerprint, iris pattern, or facial features. This makes it possible to confirm you are the rightful account holder before granting access to sensitive resources. Withdrawing money from an ATM is a security-critical task where you must prove you are the actual owner of the account, so biometric verification is a practical and common use. The other activities—streaming media, writing documents, and scheduling calendar events—don’t typically require proving identity to access the service in the same way, so biometric authentication isn’t generally used for those tasks.