Not always. Authentication is based upon one or more of the following:
An ID card portrays authentication based upon something the user has.
Authentication is based upon either:Something you know (such as a PIN).Something you have (such as an ID card).Something you are (such as a fingerprint, retina scan or DNA sample).Preferably, authentication will combine two or more of the three.
Not always. Authentication is based upon one or more of the following:Something the user knows (such as a PIN).Something the user has (such as an ID card).Something the user is (such as a fingerprint).
Yes. Any biometric reading, such as a fingerprint, retina scan or DNA sample portrays authentication based upon something the user is.
Yes.
Three common ways to authenticate someone are: Knowledge-based authentication: This involves something the user knows, such as a password or PIN. Possession-based authentication: This requires something the user has, like a security token, smart card, or mobile device for SMS verification. Biometric authentication: This uses unique biological traits, such as fingerprints, facial recognition, or iris scans, to verify a person's identity.
RADIUS requires port-based authentication.
Two-factor authentication uses something a user has in conjunction with something a user knows.
Authentication is something that verifies what is real or true.
Yes, RADIUS requires port-based authentication.
Three factor authentication is based upon three aspects: something you have, something you know and something you are. For instance, you might be asked to present an ID card (something you have), enter a PIN (something you know) and provide a fingerprint (something you are). The latter is a biometric and may include a retina scan or a DNA sample.
The most common form of authentication is the password based authentication