CompTIA CASP+ (CAS-004) — Question 199

Real-time, safety-critical systems MOST often use serial busses that:

Answer options

• A. have non-deterministic behavior and are not deployed with encryption.
• B. have non-deterministic behavior and are deployed with encryption.
• C. have deterministic behavior and are deployed with encryption.
• D. have deterministic behavior and are not deployed with encryption.

Correct answer: D

Explanation

The correct answer is D because real-time, safety-critical systems require deterministic behavior to ensure predictability and reliability. Options A and B are incorrect as non-deterministic systems are not suitable for safety-critical applications, while option C is incorrect because encryption, while beneficial for security, is not a primary characteristic of the serial busses used in such systems.