Which term refers to verifying identity using multiple methods?

• A. Visibility
• B. Productivity Tools
• C. Multi-factor Authentication
• D. Corporate Network

Answer: (C)

Using multiple methods to verify identity is called multi-factor authentication. It strengthens security by requiring more than one credential from separate categories, such as something you know (a password), something you have (a code from an authenticator app or a hardware token), or something you are (biometrics). This means even if a password is compromised, an attacker would still need the additional factor to gain access. In practice, you might enter a password and then approve a push notification or insert a security key, or use a biometric scan plus a code. The other terms refer to different concepts: visibility is about monitoring security status, productivity tools are software to boost efficiency, and a corporate network is the infrastructure connects devices—these do not describe verifying identity with multiple methods.