Answer :
Final answer:
A multifactor authentication system combines multiple forms of identification, such as biometric scans, physical tokens, and passcodes, to grant access to a user.
Explanation:
A multifactor authentication system is a security measure that requires users to provide multiple forms of identification to gain access. It adds an extra layer of security by combining different factors, such as something the user knows, something the user has, and something the user is.
One example of a multifactor authentication system is an iris scanner coupled with a palm print reader and fingerprint scanner with liveness detection. This system combines the user's unique iris pattern, palm print, and fingerprint to verify their identity.
Another example is a secret passcode that prompts the user to enter a secret key if entered correctly. This system combines something the user knows (the passcode) with something the user has (the secret key) to grant access.
A digital certificate on a physical token that is unlocked with a secret passcode is also a form of multifactor authentication. The physical token serves as something the user has, while the secret passcode acts as something the user knows.
Lastly, a one-time password token combined with a proximity badge is another example of a multifactor authentication system. The one-time password token provides something the user has, while the proximity badge serves as something the user is.
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