Electronic Authentication (eAuthentication) refers to the process of establishing confidence in user identities in online environments.

• A. The process of establishing confidence in user identities online.
• B. A data encryption technique.
• C. A firewall configuration method.
• D. A backup strategy.

Answer: (A)

Electronic Authentication focuses on confirming who a user claims to be in online systems by verifying their credentials. This is precisely what the description says: establishing confidence in user identities online. Authentication is about identity verification, not about protecting data (encryption), controlling network traffic (a firewall method), or planning for data recovery (a backup strategy). In real-world use, eAuthentication can involve something you know (password), something you have (a token or certificate), or something you are (biometrics), often combined in multi-factor approaches to strengthen confidence that the person accessing the system is who they claim to be.