Automotive Real-time Systems - Real-time Systems MCQs

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1. What is the main purpose of automotive real-time systems?
(A) To replace the driver entirely
(B) To store vehicle data for offline analysis
(C) To perform batch processing only
(D) To manage vehicle functions with strict timing constraints for safety and performance

2. Common examples of automotive real-time systems include:
(A) CPU idle exclusively
(B) Engine control, anti-lock braking system (ABS), and airbag systems
(C) Disk batch-only systems
(D) Memory-only logging

3. In automotive real-time systems, timing constraints are critical because:
(A) Disk batch-only operations
(B) CPU idle exclusively
(C) Delays can lead to safety hazards or vehicle malfunction
(D) Memory-only storage

4. ECU (Electronic Control Unit) in vehicles is responsible for:
(A) CPU idle exclusively
(B) Controlling specific subsystems like engine, transmission, and braking
(C) Disk batch-only processing
(D) Memory-only storage

5. Automotive real-time systems often use:
(A) Disk batch-only networking
(B) CPU idle exclusively
(C) CAN (Controller Area Network) for communication between ECUs
(D) Memory-only communication

6. Safety-critical real-time tasks in vehicles are usually:
(A) CPU idle exclusively
(B) Hard real-time tasks that must never miss their deadlines
(C) Soft real-time tasks
(D) Memory-only monitoring

7. Event-triggered systems in vehicles respond to:
(A) Sensors or driver actions, such as brake pedal press
(B) CPU idle exclusively
(C) Periodic timer only
(D) Memory-only events

8. Periodic tasks in automotive systems include:
(A) CPU idle exclusively
(B) Engine speed monitoring or fuel injection control
(C) Disk batch-only checks
(D) Memory-only monitoring

9. Real-time operating systems in vehicles are used to:
(A) Disk batch-only processing
(B) CPU idle exclusively
(C) Manage multiple tasks, scheduling, and timing constraints efficiently
(D) Memory-only management

10. Fault-tolerant design in automotive real-time systems ensures:
(A) Disk batch-only recovery
(B) CPU idle exclusively
(C) Vehicle continues safe operation despite sensor or ECU failures
(D) Memory-only safety

11. Priority inversion can occur in automotive systems when:
(A) Disk batch-only control
(B) CPU idle exclusively
(C) A high-priority task is blocked by a lower-priority task holding a resource
(D) Memory-only operations

12. Priority inheritance protocol helps in automotive systems by:
(A) Disk batch-only tasks
(B) CPU idle exclusively
(C) Temporarily raising the priority of a task holding a critical resource
(D) Memory-only management

13. Engine Control Unit (ECU) scheduling is typically:
(A) Memory-only
(B) CPU idle exclusively
(C) Disk batch-only
(D) Deterministic to meet strict timing and performance requirements

14. Sensor fusion in automotive real-time systems is used to:
(A) Memory-only data
(B) CPU idle exclusively
(C) Disk batch-only operations
(D) Combine data from multiple sensors for more accurate decision-making

15. Automotive real-time networks require:
(A) High reliability, low latency, and deterministic communication
(B) CPU idle exclusively
(C) Disk batch-only communication
(D) Memory-only networking

16. Airbag deployment systems are examples of:
(A) Disk batch-only tasks
(B) CPU idle exclusively
(C) Hard real-time safety-critical systems
(D) Memory-only operations

17. In automotive systems, CAN bus helps to:
(A) CPU idle exclusively
(B) Allow real-time data exchange between multiple ECUs
(C) Disk batch-only networking
(D) Memory-only communication

18. Automotive real-time systems must handle:
(A) CPU idle exclusively
(B) Rapid changes in vehicle dynamics and environmental conditions
(C) Disk batch-only tasks
(D) Memory-only data

19. Engine control loops are typically implemented as:
(A) Disk batch-only loops
(B) CPU idle exclusively
(C) Periodic tasks with fixed execution intervals
(D) Memory-only loops

20. The main advantage of automotive real-time systems is:
(A) Safe, efficient, and predictable operation of vehicle subsystems
(B) CPU idle exclusively
(C) Disk batch-only optimization
(D) Memory-only efficiency

Automotive Real-time Systems – Real-time Systems MCQs

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