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Master Real-Time Task Scheduling - Intermediate-Advanced Level Problems Real-Time Task Scheduling INTERMEDIATE ADVANCED

Excel in competitive exams with this self assessment worksheet on Real-Time Task Scheduling. Worksheet 7 of 10 contains 20 intermediate-advanced-level problems. Target your accuracy improvement skills while practicing real-time task scheduling shortcut methods, real-time task scheduling bank exam questions, and real-time task scheduling ssc cgl.

📝 Worksheet 7 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate Advanced level

What you'll learn in this worksheet:
Your progress through Real-Time Task Scheduling
Worksheet 7 of 10 (66% complete)

Question 1

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 15, Period 50 - Task B: Execution 9, Period 30 - Task C: Execution 2, Period 10 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 15/50 = 0.300
- Task B: 9/30 = 0.300
- Task C: 2/10 = 0.200
Total U = 0.800
2. RM schedulability bound for 3 tasks: 0.780
3. Conclusion: Utilization 0.800 > 0.780 (RM bound)

Answer: May not be schedulable

Question 2

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 5, Period 30 - Task B: Execution 2, Period 10 - Task C: Execution 3, Period 10 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 5/30 = 0.167
- Task B: 2/10 = 0.200
- Task C: 3/10 = 0.300
Total U = 0.667
2. RM schedulability bound for 3 tasks: 0.780
3. Conclusion: Utilization 0.667 ≤ 0.780 (RM bound)

Answer: Schedulable

Question 3

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 3, Period 10 - Task B: Execution 10, Period 30 - Task C: Execution 2, Period 30 - Task D: Execution 13, Period 50 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 3/10 = 0.300
- Task B: 10/30 = 0.333
- Task C: 2/30 = 0.067
- Task D: 13/50 = 0.260
Total U = 0.960
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 0.960 > 0.757 (RM bound)

Answer: May not be schedulable

Question 4

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 3, Period 30 - Task B: Execution 2, Period 10 - Task C: Execution 10, Period 30 - Task D: Execution 12, Period 50 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 3/30 = 0.100
- Task B: 2/10 = 0.200
- Task C: 10/30 = 0.333
- Task D: 12/50 = 0.240
Total U = 0.873
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 0.873 > 0.757 (RM bound)

Answer: May not be schedulable

Question 5

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 2, Period 10 - Task B: Execution 4, Period 20 - Task C: Execution 5, Period 20 - Task D: Execution 4, Period 30 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 2/10 = 0.200
- Task B: 4/20 = 0.200
- Task C: 5/20 = 0.250
- Task D: 4/30 = 0.133
Total U = 0.783
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 0.783 > 0.757 (RM bound)

Answer: May not be schedulable

Question 6

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 11, Period 50 - Task B: Execution 4, Period 20 - Task C: Execution 10, Period 30 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 11/50 = 0.220
- Task B: 4/20 = 0.200
- Task C: 10/30 = 0.333
Total U = 0.753
2. RM schedulability bound for 3 tasks: 0.780
3. Conclusion: Utilization 0.753 ≤ 0.780 (RM bound)

Answer: Schedulable

Question 7

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 2, Period 20 - Task B: Execution 4, Period 30 - Task C: Execution 4, Period 30 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 2/20 = 0.100
- Task B: 4/30 = 0.133
- Task C: 4/30 = 0.133
Total U = 0.367
2. RM schedulability bound for 3 tasks: 0.780
3. Conclusion: Utilization 0.367 ≤ 0.780 (RM bound)

Answer: Schedulable

Question 8

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 5, Period 20 - Task B: Execution 3, Period 10 - Task C: Execution 10, Period 30 - Task D: Execution 3, Period 20 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 5/20 = 0.250
- Task B: 3/10 = 0.300
- Task C: 10/30 = 0.333
- Task D: 3/20 = 0.150
Total U = 1.033
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 1.033 > 0.757 (RM bound)

Answer: May not be schedulable

Question 9

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 8, Period 40 - Task B: Execution 3, Period 30 - Task C: Execution 12, Period 40 - Task D: Execution 2, Period 30 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 8/40 = 0.200
- Task B: 3/30 = 0.100
- Task C: 12/40 = 0.300
- Task D: 2/30 = 0.067
Total U = 0.667
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 0.667 ≤ 0.757 (RM bound)

Answer: Schedulable

Question 10

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 3, Period 10 - Task B: Execution 8, Period 30 - Task C: Execution 2, Period 40 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 3/10 = 0.300
- Task B: 8/30 = 0.267
- Task C: 2/40 = 0.050
Total U = 0.617
2. RM schedulability bound for 3 tasks: 0.780
3. Conclusion: Utilization 0.617 ≤ 0.780 (RM bound)

Answer: Schedulable

Question 11

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 3, Period 50 - Task B: Execution 2, Period 30 - Task C: Execution 2, Period 40 - Task D: Execution 2, Period 10 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 3/50 = 0.060
- Task B: 2/30 = 0.067
- Task C: 2/40 = 0.050
- Task D: 2/10 = 0.200
Total U = 0.377
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 0.377 ≤ 0.757 (RM bound)

Answer: Schedulable

Question 12

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 2, Period 10 - Task B: Execution 3, Period 30 - Task C: Execution 2, Period 10 - Task D: Execution 6, Period 50 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 2/10 = 0.200
- Task B: 3/30 = 0.100
- Task C: 2/10 = 0.200
- Task D: 6/50 = 0.120
Total U = 0.620
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 0.620 ≤ 0.757 (RM bound)

Answer: Schedulable

Question 13

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 10, Period 30 - Task B: Execution 5, Period 40 - Task C: Execution 4, Period 40 - Task D: Execution 13, Period 50 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 10/30 = 0.333
- Task B: 5/40 = 0.125
- Task C: 4/40 = 0.100
- Task D: 13/50 = 0.260
Total U = 0.818
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 0.818 > 0.757 (RM bound)

Answer: May not be schedulable

Question 14

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 13, Period 40 - Task B: Execution 3, Period 50 - Task C: Execution 6, Period 20 - Task D: Execution 4, Period 20 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 13/40 = 0.325
- Task B: 3/50 = 0.060
- Task C: 6/20 = 0.300
- Task D: 4/20 = 0.200
Total U = 0.885
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 0.885 > 0.757 (RM bound)

Answer: May not be schedulable

Question 15

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 2, Period 20 - Task B: Execution 2, Period 20 - Task C: Execution 3, Period 30 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 2/20 = 0.100
- Task B: 2/20 = 0.100
- Task C: 3/30 = 0.100
Total U = 0.300
2. RM schedulability bound for 3 tasks: 0.780
3. Conclusion: Utilization 0.300 ≤ 0.780 (RM bound)

Answer: Schedulable

Question 16

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 6, Period 40 - Task B: Execution 2, Period 20 - Task C: Execution 15, Period 50 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 6/40 = 0.150
- Task B: 2/20 = 0.100
- Task C: 15/50 = 0.300
Total U = 0.550
2. RM schedulability bound for 3 tasks: 0.780
3. Conclusion: Utilization 0.550 ≤ 0.780 (RM bound)

Answer: Schedulable

Question 17

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 3, Period 50 - Task B: Execution 2, Period 10 - Task C: Execution 12, Period 50 - Task D: Execution 4, Period 30 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 3/50 = 0.060
- Task B: 2/10 = 0.200
- Task C: 12/50 = 0.240
- Task D: 4/30 = 0.133
Total U = 0.633
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 0.633 ≤ 0.757 (RM bound)

Answer: Schedulable

Question 18

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 6, Period 30 - Task B: Execution 10, Period 30 - Task C: Execution 11, Period 40 - Task D: Execution 2, Period 40 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 6/30 = 0.200
- Task B: 10/30 = 0.333
- Task C: 11/40 = 0.275
- Task D: 2/40 = 0.050
Total U = 0.858
2. RM schedulability bound for 4 tasks: 0.757
3. Conclusion: Utilization 0.858 > 0.757 (RM bound)

Answer: May not be schedulable

Question 19

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 3, Period 10 - Task B: Execution 8, Period 30 - Task C: Execution 10, Period 30 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 3/10 = 0.300
- Task B: 8/30 = 0.267
- Task C: 10/30 = 0.333
Total U = 0.900
2. RM schedulability bound for 3 tasks: 0.780
3. Conclusion: Utilization 0.900 > 0.780 (RM bound)

Answer: May not be schedulable

Question 20

Real-time tasks with Rate Monotonic Scheduling (shorter period = higher priority): - Task A: Execution 3, Period 10 - Task B: Execution 3, Period 10 - Task C: Execution 3, Period 10 Is the task set schedulable under RM?
Step-by-step solution:

1. Calculate utilization:
- Task A: 3/10 = 0.300
- Task B: 3/10 = 0.300
- Task C: 3/10 = 0.300
Total U = 0.900
2. RM schedulability bound for 3 tasks: 0.780
3. Conclusion: Utilization 0.900 > 0.780 (RM bound)

Answer: May not be schedulable
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