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Qus: What is two-factor authentication (2FA)?
Qusदो-कारक प्रमाणीकरण (2FA) क्या है?
A. एक साइबर सुरक्षा हमला
B. एक सोशल इंजीनियरिंग रणनीति
C. एक सुरक्षा तंत्र जिसके लिए उपयोगकर्ताओं को किसी खाते या सिस्टम तक पहुंचने के लिए दो प्रकार की पहचान प्रदान करने की आवश्यकता होती है
D. एक प्रोग्रामिंग भाषा
Solution
C. A security mechanism that requires users to provide two forms of identification to access an account or system
Explanation
Two-factor authentication (2FA) is a security mechanism that requires users to provide two forms of identification, typically something they know (e.g., a password) and something they have (e.g., a smartphone or token), to access an account or system.