This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Operating System > Class 7 Computer Science Chapter 2 Operating System – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 23 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which year operating system was introduced A) 1999. B) 1950. C) 1989. D) None of the above. Show Answer Correct Answer: B) 1950. 2. Windows 10 the successor of? A) Windows 7.1. B) Windows 8. C) Windows 7. D) Windows 8.1. Show Answer Correct Answer: D) Windows 8.1. 3. Which is faster than first-fit? A) Best fit. B) Worst fit. C) Both. D) Neither. Show Answer Correct Answer: D) Neither. 4. The ..... is a core component of an operating system and serves as the main interface between the computer's physical hardware and the processes running on it. It enables multiple applications to share hardware resources by providing access to CPU, memory, disk I/O, and networking. A) Kernel. B) BIOS. C) CPU. D) Hard disk. Show Answer Correct Answer: A) Kernel. 5. Page fault occurs when A) When a requested page is not in memory. B) When a page is currupted. C) When an exception is thrown. D) When a requested page is in memory. Show Answer Correct Answer: A) When a requested page is not in memory. 6. Software program that carries out some action A) Process. B) Command. C) Software. D) Direction. Show Answer Correct Answer: A) Process. 7. The clock is present on the right side of the taskbar. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 8. What is the role of the base and limit registers in memory management? A) To define the logical address space. B) To allocate memory dynamically. C) To manage I/O operations. D) To handle CPU scheduling. Show Answer Correct Answer: A) To define the logical address space. 9. In which state is a process that is waiting for an event to occur? A) New. B) Blocked. C) Ready. D) Running. Show Answer Correct Answer: B) Blocked. 10. The most important program in the operating system is the ..... A) Utility program. B) Supervisor program. C) File manager. D) System manager. Show Answer Correct Answer: B) Supervisor program. 11. Which of these mobile operating system are open source? A) Windows Mobile. B) Linux. C) Android. D) Apple iOS. Show Answer Correct Answer: C) Android. 12. A file extension of.xlsx means that the file can be opened by what program? A) Microsoft Word. B) Microsoft Powerpoint. C) Microsoft Office. D) Microsoft Excel. Show Answer Correct Answer: D) Microsoft Excel. 13. What does the term 'Virtualization' refer to in the context of operating systems? A) Optimizing system performance through hardware upgrades. B) Running multiple instances of the same application. C) Allowing multiple operating systems to run on a single physical machine. D) Enhancing network security protocols. Show Answer Correct Answer: C) Allowing multiple operating systems to run on a single physical machine. 14. The options present in the Start menu provide access to the main programs on the computer. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. FCFS is operates similar to a A) Sorting algorithm. B) Circle. C) Queue. D) Stack. Show Answer Correct Answer: C) Queue. 16. Windows Server is A) An operating system designed to look after it's own business. B) An operating system which can be used like Windows 10. C) Is a network operating system, which is designed to administer networks. D) None of the above. Show Answer Correct Answer: C) Is a network operating system, which is designed to administer networks. 17. Multiprogramming systems: A) Execute each job faster. B) Execute more jobs in the same time period. C) Are used only one large mainframe computers. D) Are easier to develop than single programming systems. Show Answer Correct Answer: B) Execute more jobs in the same time period. 18. The ..... feature allows to turn the open windows transparent and make the desktop of the computer visible. A) Flexi Peek. B) Trans Peek. C) Aero Peek. D) None of the above. Show Answer Correct Answer: C) Aero Peek. 19. What does the term 'two-factor authentication' mean? A) A technique for backing up data to prevent loss. B) A method of encrypting data for secure transmission. C) A security process that requires two different forms of identification. D) A way to improve system performance by using two processors. Show Answer Correct Answer: C) A security process that requires two different forms of identification. 20. In a futuristic world where advanced AI systems manage everything, which operating system is considered very old? A) Windows. B) OF THE. C) Mac. D) None of these. Show Answer Correct Answer: B) OF THE. 21. How do you open the start menu? A) By clicking on the taskbar. B) By clicking on the start button. C) By clicking on the date and time. D) By clicking on the desktop. Show Answer Correct Answer: B) By clicking on the start button. 22. An ..... tells the computer how to work. A) Desktop. B) Operating system. C) Icon. D) Windows. Show Answer Correct Answer: B) Operating system. 23. Which of the following is a condition that causes deadlock? A) Mutual exclusion. B) Hold and wait. C) Circular wait. D) No preemption. E) All of these. Show Answer Correct Answer: E) All of these. 24. What does an operating system primarily manage on a computer? A) Only hardware components. B) Only software programs. C) Both hardware and software. D) Network connections. Show Answer Correct Answer: C) Both hardware and software. 25. Which of this is an advantage of NOS? A) Need regular services and updates as per requirement. B) It totally depends upon the center server for all types of operations such as storage and accessing data. C) All terminals can easily access to server from several different areas. D) It is more expensive. Show Answer Correct Answer: C) All terminals can easily access to server from several different areas. 26. Which of the following is major part of time taken when accessing data on the disk? A) Seek time. B) Rotational latency. C) Waiting time. D) Settle time. Show Answer Correct Answer: A) Seek time. 27. These ..... are used to construct the flowchart and show the step-by-step solution to the problem. A) Symbols. B) Programs. C) Plans. D) Algorithms. Show Answer Correct Answer: A) Symbols. 28. Which of the following is an example of a global setting on a Windows system? A) Screen resolution. B) Accent color. C) Desktop background picture. D) Screen saver. Show Answer Correct Answer: A) Screen resolution. 29. The strategy of allowing processes that are logically runnable to be temporarily suspended is called A) Shortest job first. B) First come first served. C) Preemptive scheduling. D) Non preemptive scheduling. Show Answer Correct Answer: C) Preemptive scheduling. 30. What is the primary function of process scheduling in an OS? A) Device Management. B) Processor Management. C) File Management. D) Memory Management. Show Answer Correct Answer: B) Processor Management. 31. Operating systems do not manage A) Hardware. B) Peripherals. C) Spelling. D) Interpreting. Show Answer Correct Answer: C) Spelling. 32. Holding more than one process in the memory at any one time is known as multi-tasking or ..... A) Multi-programming. B) Parallel Processing. C) Timesharing. D) Process Management. Show Answer Correct Answer: A) Multi-programming. 33. POS (Point at Sale) terminal is a digital device. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 34. What is the main purpose of the file system? A) To provide a uniform way for programs to store and retrieve data on devices. B) To make backups of important files so they are not lost. C) To recover files if you accidentally delete them. D) None of the above. Show Answer Correct Answer: A) To provide a uniform way for programs to store and retrieve data on devices. 35. Start menu appears when we right click on the desktop. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 36. Logging on to my banking is considered an A) Intranet. B) Internet. C) World Wide Web. D) Extranet. Show Answer Correct Answer: D) Extranet. 37. Which of these Virtual Assistants is designed for Android A) Yahoo. B) Google. C) Siri. D) Cortana. Show Answer Correct Answer: B) Google. 38. Smart phones don't need operating systems, only computers do. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 39. 3 standard windows folder? A) Windows, document and setting, users. B) Windows, document and setting, sistem. C) Sistem, document and setting, users. D) Windows, setting, users. Show Answer Correct Answer: A) Windows, document and setting, users. 40. A shortcut menu is the menu that opens when we ..... an object. A) Double Click. B) Click. C) Right Click. D) None of the above. Show Answer Correct Answer: C) Right Click. 41. Payroll is an example of which os A) Network os. B) Time sharing os. C) Batch os. D) None of the above. Show Answer Correct Answer: C) Batch os. 42. The methods used by operating systems to assign needed resources to preform tasks is called ..... A) Task management and allocation. B) Resources management and allocation. C) Process management and scheduling. D) Process distribution and assignment. Show Answer Correct Answer: C) Process management and scheduling. 43. ..... is a type of operating system where processing time is uniformly shared among multiple users at the same time. A) Batch operating system. B) Time-sharing operating system. C) Distributed operating system. D) Real-time operating system. Show Answer Correct Answer: B) Time-sharing operating system. 44. Windows XP, Macintosh OSX and Linux are ..... A) Operating systems. B) Operating tools. C) Operators. D) None of the above. Show Answer Correct Answer: A) Operating systems. 45. In which type of operating system, the response time is very crucial? A) Unix operating system. B) Real time operating system. C) Linux operating system. D) Network operating system. Show Answer Correct Answer: B) Real time operating system. 46. Only the process executing the critical section is allowed access to the shared variable, all other processes should prevented from doing so until the completion of the critical section. This is often referred to as- A) Interprocess communication. B) Semaphores. C) Mutual exclusion. D) Deadlock. Show Answer Correct Answer: C) Mutual exclusion. 47. RAID-0 is not a true member of RAID Family. A) YES. B) NO. C) All the above. D) None of the above. Show Answer Correct Answer: A) YES. 48. What is meant by data compression? A) Emailing a file. B) Adding more pixels to an image. C) Increasing the size of a file. D) Reducing the size of a file. Show Answer Correct Answer: D) Reducing the size of a file. 49. Designed to be a small, flexible system for use by computer programmers A) LINIX. B) Java. C) UNIX. D) C++. Show Answer Correct Answer: C) UNIX. 50. How do you add a new program? A) Download the installer and follow the installation instructions. B) Start your computer to add a new program. C) First remove the existing program. D) Run programs without installation. Show Answer Correct Answer: A) Download the installer and follow the installation instructions. 51. The operating systems provides an interface between the user and the hardware A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 52. Allows people to use applications on devices. A) Operating System. B) Kernel. C) User Interface. D) Application Systems. Show Answer Correct Answer: C) User Interface. 53. Which of the following controls the orientation of your phone? A) Gyroscope. B) Geotracking. C) Accelerometer. D) Capacitive. Show Answer Correct Answer: C) Accelerometer. 54. System calls are also called hardware-interrupts. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 55. Operating System provide facilities for program creation A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 56. What does "drag and drop" mean? A) A method of removing the files in the garbage. B) A technique of changing the size of images on the computer. C) By clicking and pulling them to a new location and a method of transferring or copying items on the computer. D) A way to open applications by double-clicking on their icons. Show Answer Correct Answer: C) By clicking and pulling them to a new location and a method of transferring or copying items on the computer. 57. Which of the following is a disadvantage of using a mutex in a multi-threaded environment? A) It can lead to deadlock situations. B) It allows multiple threads to access resources simultaneously. C) It is faster than using semaphores. D) It simplifies thread management. Show Answer Correct Answer: A) It can lead to deadlock situations. 58. ..... means being aware of these online threats and taking the necessary steps to avoid them. A) Cyber World. B) Safe Surfing. C) All the above. D) None of the above. Show Answer Correct Answer: B) Safe Surfing. 59. An operating system interface that allows a user to interact with the computer by displaying pictures, icons, and other images on a screen to represent files, folders, and system controls and by accepting input from a mouse or a touch screen. A) Operating System. B) Graphical User Interface. C) Command Line Interface. D) Disk Management. Show Answer Correct Answer: B) Graphical User Interface. 60. Which of the following scheduling reduces process flow time? A) FCFS. B) LIFO. C) SJF. D) All of the these. Show Answer Correct Answer: C) SJF. ← 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