This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Computer Science Chapter 2 Operating System – Quiz 58 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 58 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... 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. 2. 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. 3. In which type of operating system, the response time is very crucial? A) Network operating system. B) Real time operating system. C) Unix operating system. D) Linux operating system. Show Answer Correct Answer: B) Real time operating system. 4. 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) Mutual exclusion. B) Semaphores. C) Deadlock. D) Interprocess communication. Show Answer Correct Answer: A) Mutual exclusion. 5. 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. 6. What is meant by data compression? A) Reducing the size of a file. B) Increasing the size of a file. C) Adding more pixels to an image. D) Emailing a file. Show Answer Correct Answer: A) Reducing the size of a file. 7. Designed to be a small, flexible system for use by computer programmers A) LINIX. B) UNIX. C) C++. D) Java. Show Answer Correct Answer: B) UNIX. 8. 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. 9. 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. 10. Allows people to use applications on devices. A) User Interface. B) Kernel. C) Application Systems. D) Operating System. Show Answer Correct Answer: A) User Interface. 11. Which of the following controls the orientation of your phone? A) Gyroscope. B) Accelerometer. C) Geotracking. D) Capacitive. Show Answer Correct Answer: B) Accelerometer. 12. 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. 13. 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. 14. 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. 15. 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. 16. ..... 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. 17. 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. 18. 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. 19. What is the main purpose of a semaphore in an operating system? A) To manage memory allocation. B) To synchronize access to shared resources. C) To schedule processes for execution. D) To handle I/O operations. Show Answer Correct Answer: B) To synchronize access to shared resources. 20. Which of the following is both time sharing os and network os A) Unix. B) Linux. C) Mac os. D) Windows. Show Answer Correct Answer: A) Unix. 21. True or False. Organizations should never keep a record of the license keys kept on their networks A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. What is the upcoming tenth major release of the Android mobile operating system called? A) Android 17. B) Android Q. C) Android Oreo. D) Android Pie. Show Answer Correct Answer: B) Android Q. 23. True or False-Operating systems are only found on Laptops A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. Old systems used to work with punch cards which contained? A) Programs. B) Instruction guides. C) The operating system. D) Microsoft Word. Show Answer Correct Answer: A) Programs. 25. COMPUTERS WORK WITH AN INTERACTION BETWEEN ..... AND ..... A) OPERATING SYSTEM and USER. B) APPLICATION SOFTWARE and SYSTEM SOFTWARE. C) HARDWARE and SOFTWARE. D) Gui and to which. Show Answer Correct Answer: C) HARDWARE and SOFTWARE. ← PreviousNext →Related 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 8Class 7 Computer Science Chapter 2 Operating System Quiz 9Class 7 Computer Science Chapter 2 Operating System Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books