Question

Which examples, excluding user identification, are used for 2-factor authentication in restricting access to sensitive data?

a) U2F token
b) Common Access Card
c) Smart card
d) Password

Answer 1

Two-factor authentication involves using two different types of authentication factors to verify a user's identity. Some examples of two-factor authentication methods commonly used for restricting access to sensitive data are U2F tokens, Common Access Cards, and smart cards.

Step-by-step explanation:

Two-factor authentication is a security measure used to restrict access to sensitive data. It involves using two different types of authentication factors to verify a user's identity. Some examples of two-factor authentication methods commonly used for restricting access to sensitive data are:

1. U2F token: A U2F token is a physical device that generates a unique authentication code. It is often used in combination with a password or another authentication factor.
2. Common Access Card: A Common Access Card (CAC) is a smart card issued to personnel in the U.S. Department of Defense. It contains personal identification information and can be used for two-factor authentication.
3. Smart card: A smart card is a small plastic card with an embedded microchip. It can store and process data and is often used for secure authentication.

These examples are just a few of the many options available for two-factor authentication.