What is Authentication?

What is Authentication?

• A. The process of verifying the identity of an individual, device, or process.
• B. The grant of access rights to a user.
• C. A duplicate copy of data.
• D. Normal daily business operations.

Answer: (A)

Authentication is the process of verifying the identity of an individual, device, or process requesting access. It answers “who are you?” by checking credentials like passwords, tokens, or biometric data, often using multiple factors for stronger assurance. This step makes sure the entity truly is who it claims to be before any resources are accessed. After authentication, the system then uses authorization to decide what the authenticated entity is allowed to do. A grant of access rights describes authorization, a duplicate copy of data is a backup or replica, and normal daily business operations are not about confirming identity.

Authentication is the process of verifying the identity of an individual, device, or process requesting access. It answers “who are you?” by checking credentials like passwords, tokens, or biometric data, often using multiple factors for stronger assurance. This step makes sure the entity truly is who it claims to be before any resources are accessed. After authentication, the system then uses authorization to decide what the authenticated entity is allowed to do. A grant of access rights describes authorization, a duplicate copy of data is a backup or replica, and normal daily business operations are not about confirming identity.