What evidence demonstrates that dev/test and prod are separated?

• A. Shared networks with identical access rules
• B. No documentation exists
• C. Separate network documentation and device configurations showing separation and access controls
• D. Production data used for dev environment

Answer: (C)

The key idea is showing formal boundaries between environments. When you have separate network documentation and device configurations that clearly indicate two isolated environments with defined access controls, it demonstrates that development/testing and production are not sharing resources or data. This kind of documentation and configuration evidence proves there is intentional segmentation and controlled access, which reduces risk and helps limit the production exposure.

Why the other options don’t fit: shared networks with identical access rules imply there’s no real separation; no documentation means no verifiable evidence of separation; using production data in the dev environment indicates data mixing and bypasses safeguards.