Performance Monitoring - Real-time Systems MCQs

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1. What is the main purpose of performance monitoring in real-time systems?
(A) To replace real-time operating systems
(B) To observe, measure, and analyze system behavior during operation
(C) To store historical logs without analysis
(D) To execute batch-only tasks

2. Performance monitoring helps in:
(A) CPU idle exclusively
(B) Detecting bottlenecks, missed deadlines, and priority inversions
(C) Disk batch-only operations
(D) Memory-only analysis

3. One common metric monitored in real-time systems is:
(A) CPU idle exclusively
(B) Task response time
(C) Disk batch-only access
(D) Memory-only throughput

4. CPU utilization monitoring indicates:
(A) The percentage of CPU time spent executing tasks versus being idle
(B) CPU idle exclusively
(C) Disk batch-only usage
(D) Memory-only usage

5. Latency monitoring measures:
(A) Disk batch-only latency
(B) CPU idle exclusively
(C) Delay between an event occurrence and system response
(D) Memory-only delay

6. Jitter monitoring evaluates:
(A) Disk batch-only variation
(B) CPU idle exclusively
(C) Variability in task response times
(D) Memory-only deviation

7. Resource utilization monitoring tracks:
(A) CPU, memory, and I/O usage by tasks
(B) CPU idle exclusively
(C) Disk batch-only usage
(D) Memory-only consumption

8. Performance monitoring tools in real-time systems can provide:
(A) Real-time dashboards, logs, and alerts
(B) CPU idle exclusively
(C) Disk batch-only analysis
(D) Memory-only metrics

9. Monitoring task execution helps to:
(A) CPU idle exclusively
(B) Ensure deadlines are met and system remains predictable
(C) Disk batch-only tasks
(D) Memory-only operations

10. Performance monitoring can assist in:
(A) CPU idle exclusively
(B) Identifying optimization opportunities for scheduling and resource allocation
(C) Disk batch-only tuning
(D) Memory-only improvements

11. Hard real-time systems require monitoring of:
(A) Memory-only constraints
(B) CPU idle exclusively
(C) Disk batch-only timing
(D) Deadline adherence and worst-case execution times

12. Soft real-time systems focus on monitoring:
(A) CPU idle exclusively
(B) Average response times and system throughput
(C) Disk batch-only averages
(D) Memory-only throughput

13. Profiling in performance monitoring provides:
(A) Memory-only profiling
(B) CPU idle exclusively
(C) Disk batch-only profiling
(D) Detailed execution statistics for tasks and functions

14. Logging in real-time systems allows:
(A) CPU idle exclusively
(B) Recording events and metrics for post-analysis
(C) Disk batch-only recording
(D) Memory-only logging

15. Performance counters in hardware can monitor:
(A) CPU idle exclusively
(B) Instruction counts, cache hits/misses, and execution cycles
(C) Disk batch-only counts
(D) Memory-only operations

16. An advantage of continuous performance monitoring is:
(A) Early detection of anomalies and potential system failures
(B) CPU idle exclusively
(C) Disk batch-only alerts
(D) Memory-only detection

17. Monitoring task queues helps to:
(A) Memory-only queue handling
(B) CPU idle exclusively
(C) Disk batch-only queue issues
(D) Prevent task starvation and manage load effectively

18. In distributed real-time systems, performance monitoring also tracks:
(A) Network latency, throughput, and message delays
(B) CPU idle exclusively
(C) Disk batch-only communication
(D) Memory-only metrics

19. Performance monitoring results can guide:
(A) System tuning, scheduling adjustments, and resource allocation improvements
(B) CPU idle exclusively
(C) Disk batch-only tuning
(D) Memory-only optimizations

20. The main goal of performance monitoring in real-time systems is:
(A) Memory-only analysis
(B) CPU idle exclusively
(C) Disk batch-only evaluation
(D) Ensuring predictable, efficient, and reliable operation under real-time constraints

Performance Monitoring – Real-time Systems MCQs

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