Read the following passage and answer the questions below.
‘Biometrics’ refers to the identification of humans by their characteristics or traits. Biometric identifiers are often categorised as physiological versus behavioural characteristics. Physiological characteristics are related to the shape of the body. Examples include fingerprint, face recognition, DNA, Palm print, hand geometry and iris recognition. Behavioural characteristics are related to the behaviour of a person, including typing rhythm, gait, and voice.
More traditional means of identification include token-based systems, such as a driver's license or passport, and knowledge-based systems, such as a password or personal identification number. Since biometric identifiers are unique to individuals, they are more reliable in verifying identity than token and knowledge-based methods; however, the collection of biometric identifiers raises privacy concerns about the ultimate use of this information.
Are the following statements true, false or not given?
1. There are two main types of biometric identifier.
2. Fingerprinting is the best known biometric identification system.
3. The use of a password is another example of biometric identification.
4. Some people may worry about how biometric data is used.