Modeling Techniques – Real-time Systems MCQs

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1. What is the main purpose of modeling techniques in real-time systems?
(A) To reduce CPU idle exclusively
(B) To represent and analyze system behavior for design and scheduling
(C) To perform batch processing only
(D) To ignore deadlines

2. Which modeling technique represents tasks and their execution order using nodes and edges?
(A) Directed Acyclic Graphs (DAGs)
(B) CPU idle graphs exclusively
(C) Disk batch diagrams
(D) Memory flowcharts

3. Which modeling technique focuses on the timing behavior of real-time systems?
(A) Timed Automata
(B) CPU idle charts exclusively
(C) Disk batch-only models
(D) Memory-only sequences

4. Petri nets are used in real-time systems modeling to:
(A) CPU idle exclusively
(B) Represent concurrency, synchronization, and resource sharing
(C) Disk batch-only scheduling
(D) Memory optimization

5. State machines are useful for modeling:
(A) Memory-only snapshots
(B) CPU idle exclusively
(C) Disk batch-only tasks
(D) The discrete states and transitions of system components

6. Which modeling technique captures both functional and temporal aspects of tasks?
(A) Real-Time Unified Modeling Language (RT-UML)
(B) CPU idle exclusively
(C) Disk batch-only flow
(D) Memory-only representation

7. Synchronous Data Flow (SDF) models are particularly suitable for:
(A) CPU idle exclusively
(B) Signal processing and streaming applications
(C) Disk batch-only operations
(D) Memory-only snapshots

8. Task graphs are used to:
(A) Represent dependencies and execution order among tasks
(B) CPU idle exclusively
(C) Disk batch-only graphs
(D) Memory-only snapshots

9. Which modeling technique can help in schedulability analysis?
(A) Timed Automata and Task Graphs
(B) CPU idle exclusively
(C) Disk batch-only models
(D) Memory-only flowcharts

10. Which technique is useful for modeling probabilistic system behavior?
(A) CPU idle exclusively
(B) Stochastic Petri Nets
(C) Disk batch-only diagrams
(D) Memory-only sequences

11. Hybrid modeling combines:
(A) Memory-only sequences
(B) CPU idle exclusively
(C) Disk batch-only tasks
(D) Continuous and discrete system behaviors

12. UML statecharts are used to:
(A) Memory-only snapshots
(B) CPU idle exclusively
(C) Disk batch-only operations
(D) Model hierarchical states and complex transitions

13. Modeling techniques are essential in real-time systems to:
(A) Disk batch-only efficiency
(B) CPU idle exclusively
(C) Predict performance, verify deadlines, and optimize scheduling
(D) Memory-only optimization

14. Which modeling technique can analyze resource contention among tasks?
(A) Disk batch-only operations
(B) CPU idle exclusively
(C) Petri Nets
(D) Memory-only flow

15. Which modeling approach helps in designing fault-tolerant systems?
(A) Disk batch-only design
(B) CPU idle exclusively
(C) State machines with recovery transitions
(D) Memory-only snapshots

16. Which modeling technique is widely used for simulation and verification?
(A) Memory-only verification
(B) CPU idle exclusively
(C) Disk batch-only simulations
(D) Timed Automata

17. Task execution time and deadlines can be represented using:
(A) Memory-only diagrams
(B) CPU idle exclusively
(C) Disk batch-only charts
(D) Task Graphs and Timed Automata

18. Which modeling technique captures both concurrency and synchronization constraints?
(A) CPU idle exclusively
(B) Petri Nets
(C) Disk batch-only operations
(D) Memory-only sequences

19. Reliability and fault-tolerance can be evaluated using:
(A) CPU idle exclusively
(B) Stochastic models and fault injection in Petri Nets
(C) Disk batch-only simulations
(D) Memory-only snapshots

20. The main advantage of modeling techniques in real-time systems is:
(A) CPU idle exclusively
(B) Providing a formal framework for analysis, design, and verification
(C) Disk batch-only optimization
(D) Memory-only efficiency