CompTIA CASP+ (CAS-004) — Question 330

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 is C because DNP3 lacks a built-in mechanism for authentication, which can lead to security vulnerabilities. Options A and B address support and standardization issues, which are not primary security concerns, while option D simply states that it is open source, which does not inherently indicate a security risk.