Which type of scan provides the MOST detailed information about internal system configurations, installed software, and user-specific settings?

• A. Authenticated scan
• B. Unauthenticated scan
• C. Passive monitoring
• D. Fuzz testing

Answer: (A)

Using valid credentials to access the target machine allows the scanner to log in and read internal details that are hidden from outsiders. An authenticated scan can query the system registry or configuration files, pull a complete inventory of installed software and versions, examine service configurations, and access user profiles and settings. This combination yields the most comprehensive view of how the system is actually configured and used, which is exactly what’s needed to understand internal configurations, installed software, and user-specific settings. In contrast, an unauthenticated scan is limited to what’s exposed publicly and can’t reliably reveal internal inventories or user-level details. Passive monitoring observes network traffic to infer what’s happening, but it doesn’t provide authoritative, per-machine configuration data. Fuzz testing focuses on checking how the system handles malformed inputs, not on discovering installed software or user settings.