Application developers are faced with a choice of mechanisms based on technologies to perform local or remote authentication.

• A. Data backup strategies.
• B. eAuthentication.
• C. Network routing protocols.
• D. Storage encryption methods.

Answer: (B)

Electronic authentication is all about verifying who is accessing an application in digital environments. It covers mechanisms that work whether authentication happens on the system itself (local) or through an outside identity provider (remote). In practice, this includes passwords, tokens, smart cards, digital certificates, biometrics, and federated protocols like SAML or OpenID Connect. This aligns with the need to perform local or remote authentication. The other options don’t address identity verification: data backup strategies focus on protecting and recovering data, network routing protocols manage how data moves, and storage encryption methods protect data at rest without handling who is allowed to access it. So, electronic authentication is the appropriate concept for authenticating users in both local and remote contexts.