Test your knowledge with the Real-Time Scheduling Quiz.

Real-Time Scheduler Quiz

1. What is the main focus of a real-time scheduler in short-term task scheduling?

A. Handling deadlines
B. Reducing response time
C. Managing system stability
D. Allocating fixed priorities

2. In hard real-time systems, what is the consequence of missing a deadline?

A. Improved resource utilization
B. Catastrophic consequences
C. Tolerated deadline misses
D. Priority adjustment at runtime

3. Which scheduling algorithm assigns fixed priorities to tasks based on compile-time characteristics?

A. Rate-Monotonic Scheduling (RMS)
B. Dynamic-Priority Scheduling
C. Fixed-Priority Scheduling
D. Earliest Deadline First (EDF)

4. What is a key benefit of soft real-time scheduling in terms of resource utilization?

A. Meeting strict deadlines
B. Avoiding over-provisioning
C. Tolerating deadline misses
D. Ensuring task completion

5. Which type of real-time system accepts some delays but has assigned deadlines for tasks?

A. Hard Real Time
B. Firm Real Time
C. Soft Real Time
D. Dynamic Real Time

6. What is the main role of a real-time scheduler in real-time systems?

A. Deadline assignment
B. Reducing system complexity
C. Minimizing response time
D. Allocating system resources efficiently

7. Which scheduling algorithm prioritizes tasks based on their deadlines?

A. Rate-Monotonic Scheduling (RMS)
B. Earliest Deadline First (EDF)
C. Fixed-Priority Scheduling
D. Dynamic-Priority Scheduling

8. In a soft real-time system, what is acceptable regarding deadlines?

A. Strict adherence
B. Tolerance for small delays
C. Frequent misses
D. Complete flexibility

9. What is the advantage of combining pre-emptive and non-pre-emptive scheduling?

A. Reduced response time
B. Increased system stability
C. Efficient task execution
D. Minimized context switching

10. Which domain may use a hard real-time system?

A. Video streaming
B. Multimedia applications
C. Aerospace
D. Voice recognition

11. What is the distinguishing feature of real-time operating systems (RTOS)?

A. Efficient resource utilization
B. Predictable and deterministic behavior
C. Dynamic priority adjustments
D. Soft deadline handling

12. Which real-time scheduling algorithm prioritizes tasks based on their periods?

A. Dynamic-Priority Scheduling
B. Earliest Deadline First (EDF)
C. Rate-Monotonic Scheduling (RMS)
D. Fixed-Priority Scheduling

13. What is a potential disadvantage of real-time scheduling in terms of system design?

A. Improved resource utilization
B. Increased complexity
C. Efficient task execution
D. Predictable task behavior

14. Which type of real-time operating system handles deadlines strictly and may cause disasters if missed?

A. Soft RTOS
B. Firm RTOS
C. Hard RTOS
D. Dynamic RTOS

15. What does a soft real-time system accept regarding task delays?

A. Strict adherence
B. Any delay, regardless of size
C. Large delays
D. Small delays

16. In real-time scheduling, what does pre-emption involve?

A. Fixed priorities
B. Time-based interrupts
C. Dynamic adjustments
D. Tolerance for delays

17. Which scheduling algorithm assigns priorities based on the closest deadlines?

A. Fixed-Priority Scheduling
B. Dynamic-Priority Scheduling
C. Earliest Deadline First (EDF)
D. Rate-Monotonic Scheduling (RMS)

18. What is a potential impact of scheduling overhead on system performance?

A. Reduced context switching
B. Improved task execution
C. Predictable task behavior
D. Increased system responsiveness

19. What is the significance of task priority in real-time scheduling?

A. Determining task complexity
B. Influencing task execution order
C. Reducing system stability
D. Ensuring strict adherence to deadlines

20. Which of the following is a characteristic of a real-time operating system (RTOS)?

A. Unpredictable task behavior
B. Dynamic resource allocation
C. Non-deterministic response times
D. Predictable and deterministic behavior

Score: 0

Correct Answers:

• 1. B
• 2. B
• 3. C
• 4. B
• 5. C
• 6. C
• 7. B
• 8. B
• 9. C
• 10. C
• 11. B
• 12. C
• 13. B
• 14. C
• 15. D
• 16. B
• 17. C
• 18. A
• 19. B
• 20. D

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