This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Operating System > Class 7 Computer Science Chapter 2 Operating System – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 15 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is the largest network in the world? A) Intranet. B) Peer-to-peer. C) Internet. D) Extranet. Show Answer Correct Answer: C) Internet. 2. In which of the following four necessary conditions for deadlock processes claim exclusive control of the resources they require? A) No preemption. B) Mutual exclusion. C) Circular wait. D) Hold and wait. Show Answer Correct Answer: B) Mutual exclusion. 3. Can we pin programs on the taskbar for easy access? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 4. Which type of OS is designed for specific hardware and tasks? A) Network OS. B) Embedded OS. C) Multiprocessor. D) Distributed OS. Show Answer Correct Answer: B) Embedded OS. 5. The main work-space view before you open any programs A) Icons. B) Kernel. C) Window. D) Desktop. Show Answer Correct Answer: D) Desktop. 6. A computer program that makes it so people, hardware, and software can interface with each other in a meaningful way. A) Operating System. B) Graphical User Interface. C) Command Line Interface. D) Disk Management. Show Answer Correct Answer: A) Operating System. 7. Which device is used as the standard pointing device in a Graphical User Environment? A) Keyboard. B) Mouse. C) Joystick. D) Track Ball. Show Answer Correct Answer: B) Mouse. 8. Which of the following is a disadvantage of a Batch Operating System? A) Idle CPU Time. B) High Efficiency. C) Resource Sharing. D) User Convenience. Show Answer Correct Answer: A) Idle CPU Time. 9. The name of the most "unpopular" interface from windows 8.0. A) Qbit interface. B) Metro interface. C) Cosmo interface. D) Micro-interface. Show Answer Correct Answer: B) Metro interface. 10. The English Equivalent Term of "Application Code" IS A) Memory code. B) Application code. C) All the above. D) None of the above. Show Answer Correct Answer: B) Application code. 11. Short-Term Scheduler selects the processes from the A) SYSTEM. B) READY QUEUE. C) I/O DEVICE. D) CPU. Show Answer Correct Answer: B) READY QUEUE. 12. In virtual memory: A) Process frame size varies. B) Block size varies. C) Process frame size = block size. D) Block size = process frame size. Show Answer Correct Answer: D) Block size = process frame size. 13. Which is the layer of a computer system between the hardware and the user program? A) None. B) Operating Environment. C) Operating System. D) System Environment. Show Answer Correct Answer: C) Operating System. 14. Which algorithm has low over head A) Shortest Job First (SJF) Scheduling. B) Round-Robin (RR) Scheduling. C) First-Come, First-Serve (FCFS) Scheduling. D) Priority Scheduling. Show Answer Correct Answer: B) Round-Robin (RR) Scheduling. 15. A ..... is a place to store files and other folders. A) Icon. B) Folders. C) File. D) None of the above. Show Answer Correct Answer: B) Folders. 16. What are the challenges of implementing and maintaining a network operating system? A) Limited storage capacity. B) Lack of user-friendly interface. C) Security vulnerabilities, compatibility issues, scalability, and performance optimization. D) Inability to handle multiple users at once. Show Answer Correct Answer: C) Security vulnerabilities, compatibility issues, scalability, and performance optimization. 17. The long horizontal bar at the bottom of the desktop screen is called ..... A) Icons. B) Search. C) Taskbar. D) Wallpaper. Show Answer Correct Answer: C) Taskbar. 18. Which one of the following file attributes used to control that who can do the reading, writing, executing A) Production. B) Location. C) Name. D) Identifier. Show Answer Correct Answer: A) Production. 19. On which section of taskbar we can add commonly used programs? A) Notification area. B) Quick launch bar. C) Start button. D) None of the above. Show Answer Correct Answer: B) Quick launch bar. 20. To select the entire document, use A) Shift + A. B) ALT + F5. C) Ctrl + K. D) Ctrl + A. Show Answer Correct Answer: D) Ctrl + A. 21. 3) Which conditions must be satisfied to solve a critical section problem? A) Bounded Waiting. B) Progress. C) Mutual Exclusion. D) All of these. Show Answer Correct Answer: D) All of these. 22. Which of the following "semaphore" can take the non-negative integer values? A) Binary Semaphore. B) Counting Semaphore. C) Real Semaphore. D) All of the these. Show Answer Correct Answer: B) Counting Semaphore. 23. Fragmentation can be defined as: A) Memory space is available but not relocatable. B) Memory space is available but not adequate. C) Memory space is available but not contiguous. D) Memory space is available but not ready as OS is busy. Show Answer Correct Answer: C) Memory space is available but not contiguous. 24. An operating system is like the "brain" of a computer, helping it manage all its activities. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. What types of operating systems are available? A) IOS. B) Android. C) Windows, macOS, Linux. D) Unix. Show Answer Correct Answer: C) Windows, macOS, Linux. 26. Machine which can be programmed to control symbols A) Computer. B) Source code. C) Software. D) Network. Show Answer Correct Answer: A) Computer. 27. Multiple Level Queues(MLQ) is a type of- A) CPU Scheduling. B) Data Scheduling. C) Disk Scheduling. D) None. Show Answer Correct Answer: A) CPU Scheduling. 28. Which mechanism is used for object interaction in Object Based Architecture? A) Remote Procedure Call (RPC). B) Shared Memory Access. C) Synchronous Data Transfer. D) Direct Memory Access (DMA). Show Answer Correct Answer: A) Remote Procedure Call (RPC). 29. The full form of GUI is ..... A) Geometrical User Interface. B) Graphical Unified Interface. C) Graphical User Interface. D) None of the above. Show Answer Correct Answer: C) Graphical User Interface. 30. Algorithms are used to design a solution to any problem. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 31. The extension of NotePad is A) .txt. B) .doc. C) .ttf. D) .npd. Show Answer Correct Answer: A) .txt. 32. With round robin scheduling algorithm in a time shared system ..... A) Using very large time slices converts it into First come First served scheduling algorithm. B) Using very small time slices converts it into First come First served scheduling algorithm. C) Using extremely small time slices increases performance. D) Using very small time slices converts it into Shortest Job First algorithm. Show Answer Correct Answer: A) Using very large time slices converts it into First come First served scheduling algorithm. 33. Connection between person and computer A) Interface. B) Multi user. C) Operating system. D) Single user. Show Answer Correct Answer: A) Interface. 34. Operating system used to manage A) Storage. B) Hardware. C) Both. D) None of the above. Show Answer Correct Answer: A) Storage. 35. The desktop background is know as ..... A) Icons. B) Wallpaper. C) Notification area. D) None of the above. Show Answer Correct Answer: B) Wallpaper. 36. The following is not a function of an operating system: A) Checking for viruses. B) Directing information from peripheral devices like a mouse or a printer. C) Allowing users to open applications. D) Allocating the computer's memory between different tasks. Show Answer Correct Answer: A) Checking for viruses. 37. GUI and CUI are known as ..... A) Operating System. B) Interface. C) All the above. D) None of the above. Show Answer Correct Answer: B) Interface. 38. For our chapter, which version of Windows are we learning about? A) Windows 1995. B) Windows 11. C) Windows 2007. D) Windows XP. Show Answer Correct Answer: D) Windows XP. 39. To change the appearance of the desktop, we need to open the ..... dialog box. A) Settings. B) Launcher. C) All the above. D) None of the above. Show Answer Correct Answer: A) Settings. 40. These are programs that are used to compose, edit, print, and electronically publish ..... A) DOCUMENT PRODUCTION SOFTWARE. B) DATABASE MANAGEMENT SOFTWARE. C) PRESENTATION SOFTWARE. D) SPREADSHEET SOFTWARE. Show Answer Correct Answer: A) DOCUMENT PRODUCTION SOFTWARE. 41. The OS provides a platform that enables what to be run? A) Applications. B) Hardware. C) Processes. D) Cache. Show Answer Correct Answer: A) Applications. 42. True or False:A mobile operating system is the same as a computer operating system? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 43. Windows, Icons, menus and Pointers are all part of this? (1-4) A) Graphical User Interface. B) Command Line Interface. C) Menu Interface. D) No User Interface. Show Answer Correct Answer: A) Graphical User Interface. 44. Messages sent by a process ..... A) Have to be of a fixed size. B) Have to be a variable size. C) Can be fixed or variable sized. D) None of the mentioned. Show Answer Correct Answer: C) Can be fixed or variable sized. 45. A computer or smartphone cannot function alone without adding a program to run all the resources of the device, but the smartphone is on but cannot display anything on the screen.What should I do? A) Menginstall operating sistem android ke smartphone nya. B) Mendownload aplikasi gambar melalui hp nya. C) Menambahkan aplikasi windows di smartphone nya. D) Menginstall program aplikasi android. Show Answer Correct Answer: A) Menginstall operating sistem android ke smartphone nya. 46. Memory management is: A) Is looking at how memory sets dates on it's calendar. B) The way memory conducts itself in public. C) The process of deleting old files. D) The process of allocating resources to programs. Show Answer Correct Answer: D) The process of allocating resources to programs. 47. Memory protection is normally done by A) The processor and the associated hardware. B) OS. C) Compiler. D) User Program. Show Answer Correct Answer: A) The processor and the associated hardware. 48. What is the main advantage of using virtual memory in an operating system? A) Increased RAM capacity. B) Faster access to secondary storage. C) Better security for sensitive data. D) The illusion of having more physical memory than actually available. Show Answer Correct Answer: D) The illusion of having more physical memory than actually available. 49. All input and output operations are carried out by ..... A) Operating system. B) Application software. C) Administrator. D) Applications. Show Answer Correct Answer: A) Operating system. 50. An operating system is the ..... that controls all the ..... It acts as an ..... between the user and the hardware and also between ..... and the hardware. A) Software, hardware, interface, applications. B) Hardware, software, interchange, applicators. C) Hardware, software, interchange, applications. D) Hardware, software, interface, applications. Show Answer Correct Answer: A) Software, hardware, interface, applications. 51. The operating system is in your mind A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 52. Which of the following is a benefit of microkernel-based operating systems? A) Increased performance. B) Simplified structure and better fault tolerance. C) Easy to implement. D) None of the above. Show Answer Correct Answer: B) Simplified structure and better fault tolerance. 53. A role of the operating system that manages applications or programs that are installed on a system. A) Windows Settings App. B) Application Management. C) Access Control/Protection. D) Service Management. Show Answer Correct Answer: B) Application Management. 54. Which of the following is a key feature of a Graphical User Interface (GUI)? A) It uses text commands. B) It relies on voice recognition. C) It provides visual elements like windows and icons. D) It is primarily used in server environments. Show Answer Correct Answer: C) It provides visual elements like windows and icons. 55. Which of the following mechanisms is a locking mechanism? A) Mutex. B) PCB. C) Binary Semaphore. D) Semaphore. Show Answer Correct Answer: A) Mutex. 56. Which of the following statements is NOT true about user interfaces? A) A user interface instructs the computer how to display information on the screen. B) Most computers today use a command-line interface. C) GUI operating systems use menus and visual images such as buttons. D) A user interface controls how you enter data and instructions. Show Answer Correct Answer: B) Most computers today use a command-line interface. 57. Which of the following is a disadvantage of the Least Recently Used (LRU) page replacement algorithm? A) It does not consider the frequency of access. B) It can be complex to implement. C) It requires more memory than FIFO. D) It is less efficient than Optimal Page Replacement. Show Answer Correct Answer: B) It can be complex to implement. 58. To change the size of the window to full screen, we need to click on the ..... button A) Maximize button. B) Minimize button. C) Close button. D) None of the above. Show Answer Correct Answer: A) Maximize button. 59. ..... shares characteristics with both hardware and software. A) Data. B) None. C) Operating System. D) Software. Show Answer Correct Answer: C) Operating System. 60. Which touchscreens need to be constantly calibrated? A) Capacitive Touchscreen. B) New Touchscreens. C) Resistive Touchscreen. D) Gyroscope Screens. Show Answer Correct Answer: C) Resistive Touchscreen. ← PreviousNext →Related QuizzesComputer Science QuizzesClass 7 QuizzesClass 7 Computer Science Chapter 2 Operating System Quiz 1Class 7 Computer Science Chapter 2 Operating System Quiz 2Class 7 Computer Science Chapter 2 Operating System Quiz 3Class 7 Computer Science Chapter 2 Operating System Quiz 4Class 7 Computer Science Chapter 2 Operating System Quiz 5Class 7 Computer Science Chapter 2 Operating System Quiz 6Class 7 Computer Science Chapter 2 Operating System Quiz 7Class 7 Computer Science Chapter 2 Operating System Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books