1. What is the primary requirement of real-time defense systems?
(A) Large storage capacity
(B) Timely and accurate response
(C) High-resolution graphics
(D) Low cost
2. Which defense system requires hard real-time constraints?
(A) Battlefield management software
(B) Missile guidance system
(C) Military database system
(D) Logistics planning system
3. Missing a deadline in a real-time defense system can cause:
(A) Minor delay
(B) System crash
(C) Increased storage
(D) Mission failure
4. Which sensor is commonly used in missile defense systems?
(A) Radar sensor
(B) Temperature sensor
(C) Pressure sensor
(D) Microphone
5. Which real-time property is critical for weapon control systems?
(A) Portability
(B) Scalability
(C) Determinism
(D) Reusability
6. Which system is responsible for controlling multiple defense units simultaneously?
(A) Missile launcher
(B) Radar display system
(C) Command and control system
(D) Drone camera system
7. Which actuator is used to control missile fins?
(A) Hydraulic actuator
(B) Electric motor
(C) Pneumatic actuator
(D) Stepper motor
8. Which scheduling algorithm is suitable for time-critical defense tasks?
(A) FCFS
(B) Lottery scheduling
(C) Round-robin
(D) Rate Monotonic Scheduling (RMS)
9. Which real-time system monitors incoming threats?
(A) Database system
(B) Data logging system
(C) Radar system
(D) Communication system
10. Which communication protocol ensures low-latency transmission in defense systems?
(A) TCP
(B) FTP
(C) HTTP
(D) UDP
11. Which device tracks moving targets in defense applications?
(A) Radar
(B) Encoder
(C) Sensor array
(D) Actuator
12. Which type of deadline violation is unacceptable in defense systems?
(A) Soft deadline miss
(B) Firm deadline miss
(C) Optional deadline miss
(D) Hard deadline miss
13. Which real-time system is used for drone navigation?
(A) GPS-guided control system
(B) Logistics software
(C) Payroll system
(D) Inventory management system
14. Which factor affects responsiveness of defense systems most?
(A) Network latency
(B) Storage size
(C) CPU speed
(D) Task scheduling
15. Which control strategy is commonly used in missile guidance?
(A) Open-loop control
(B) PID control
(C) Manual control
(D) Feedforward control
16. Which sensor detects aerial threats?
(A) Temperature sensor
(B) Pressure sensor
(C) Radar
(D) Microphone
17. Which real-time property ensures predictable operation under high load?
(A) Determinism
(B) Reliability
(C) Portability
(D) Flexibility
18. Which system verifies mission-critical defense software?
(A) Debugging
(B) Simulation
(C) Formal verification
(D) Logging
19. Which component executes control algorithms in defense systems?
(A) Sensor
(B) Actuator
(C) Controller
(D) Display
20. Which real-time system supports battlefield surveillance?
(A) Email server
(B) Satellite imaging system
(C) File transfer system
(D) HR management system
21. Which real-time issue causes delayed target tracking?
(A) Buffer overflow
(B) Syntax error
(C) Deadline miss
(D) Storage limit
22. Which communication network is used for secure defense data transmission?
(A) Bluetooth
(B) Public Internet
(C) Wireless hotspot
(D) Military LAN
23. Which actuator type is most suitable for turret control?
(A) Hydraulic actuator
(B) Electric actuator
(C) Pneumatic actuator
(D) Stepper motor
24. Which system provides real-time battlefield mapping?
(A) Email server
(B) Payroll system
(C) GIS-based command system
(D) Database server
25. Which protocol is used for real-time sensor data in defense systems?
(A) Modbus
(B) HTTP
(C) FTP
(D) SMTP
26. Which defense system requires continuous feedback for accuracy?
(A) Inventory software
(B) Logistics system
(C) Missile guidance system
(D) HR system
27. Which real-time failure in defense systems is most critical?
(A) File corruption
(B) Task deadline miss
(C) Network outage
(D) Display error
28. Which property ensures system continues operation despite failures?
(A) Flexibility
(B) Scalability
(C) Portability
(D) Fault tolerance
29. Which real-time scheduling metric is essential for defense systems?
(A) Storage
(B) Deadline
(C) File size
(D) CPU load
30. Which device amplifies radar signals in defense systems?
(A) Repeater
(B) Router
(C) Modem
(D) Amplifier
31. Which real-time system is used in naval defense?
(A) Inventory management
(B) Sonar system
(C) Email server
(D) Payroll system
32. Which system supports real-time weapon targeting?
(A) Database system
(B) Logistics software
(C) Fire control system
(D) Communication server
33. Which type of actuator controls aircraft surfaces?
(A) Electric
(B) Hydraulic
(C) Pneumatic
(D) Stepper motor
34. Which real-time protocol is used for high-speed data transfer in defense systems?
(A) FTP
(B) TCP
(C) UDP
(D) SMTP
35. Which system monitors missile launch status in real-time?
(A) Command and control system
(B) HR software
(C) Payroll system
(D) Logistics system
36. Which sensor is essential for night-time operations?
(A) Microphone
(B) Temperature sensor
(C) Pressure sensor
(D) Infrared sensor
37. Which real-time system ensures coordination between multiple defense units?
(A) Email system
(B) Command and control network
(C) Database system
(D) File server
38. Which communication delay is critical in missile defense?
(A) Propagation delay
(B) All of the above
(C) Queueing delay
(D) Transmission delay
39. Which technique improves reliability of defense real-time systems?
(A) Sorting
(B) Compression
(C) Encryption
(D) Redundancy
40. Which property ensures task execution within deadlines?
(A) Flexibility
(B) Scalability
(C) Schedulability
(D) Portability
41. Which system monitors air defense radar coverage?
(A) Radar management system
(B) Email system
(C) HR software
(D) Inventory system
42. Which factor affects real-time defense system accuracy?
(A) Sensor precision
(B) Network delay
(C) All of the above
(D) Processing speed
43. Which actuator type is used in precision targeting systems?
(A) Pneumatic actuator
(B) Electric motor
(C) Hydraulic actuator
(D) Piezoelectric actuator
44. Which real-time property ensures predictable timing under high load?
(A) Flexibility
(B) Scalability
(C) Portability
(D) Determinism
45. Which system provides real-time battlefield intelligence?
(A) Payroll system
(B) Email system
(C) HR software
(D) Surveillance and reconnaissance system
46. Which real-time defense application requires millisecond-level timing?
(A) Inventory management
(B) Logistics planning
(C) Missile guidance
(D) Payroll processing
47. Which technique ensures uninterrupted operation in defense systems?
(A) Fault tolerance
(B) Compression
(C) Encryption
(D) Sorting
48. Which system controls multiple UAVs in real-time?
(A) UAV command system
(B) HR software
(C) Inventory system
(D) Email server
49. Which sensor detects incoming artillery shells?
(A) Pressure sensor
(B) Infrared
(C) Radar
(D) Gyroscope
50. The main goal of real-time defense systems is to ensure:
(A) Low cost
(B) High storage capacity
(C) Attractive user interface
(D) Accurate and timely decision-making