Which combination helps reproduce results across environments?

• A. Run scans with random options.
• B. Only run on the same day.
• C. Rely on Zenmap to auto-load profiles.
• D. Use identical options and the same output basename, and save outputs with -oA.

Answer: (D)

Reproducibility across environments comes from making the scan behavior and the result files deterministic. Using identical options ensures the scan runs with the same parameters every time, so the process isn’t altered by random or changing defaults. Having the same output basename keeps all result files aligned under a single, predictable name, making it easy to locate, compare, and re-run the exact dataset. Saving outputs with -oA is key because it writes multiple standard formats (normal, XML, and grepable) under that common basename, giving you a complete, portable record that can be examined or imported by other tools on different systems. The other approaches introduce variability: random options change the scan; different days add network state changes; and relying on profiles can hide exact command-line differences or require environment-specific profiles, which undermines true reproducibility.