Question

Hard real time operating system is one that must operate within the predictable deadline otherwise it is considered to have failed. Which of the following is NOT an example of such system?

• A. Aircraft control systems
• B. Anti-lock braking systems
• C. Automobile engine control systems
• D. Internet telephony systems

Answer 1

The correct option is D Internet telephony systems

Internet telephony is not such kind of task that if not performed in a specific time limit will lead to hazardous results, so it does not require a real lime system.