CompTIA SecurityX (CAS-005) — Question 237

Which of the following is a security concern for DNP3?

Answer options

• A. Free-form messages require support.
• B. Available function codes are not standardized.
• C. Authentication is not allocated.
• D. It is an open source protocol.

Correct answer: C

Explanation

The correct answer, C, highlights that DNP3 lacks allocated authentication, which poses significant security risks. Options A and B, while potentially valid concerns, do not directly relate to security issues. Option D is inaccurate as being open source does not inherently represent a security concern.