This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Operating System > Class 7 Computer Science Chapter 2 Operating System – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 24 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. Which of the following is both time sharing os and network os A) Mac os. B) Linux. C) Windows. D) Unix. Show Answer Correct Answer: D) Unix. 3. 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. 4. 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. 5. 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. 6. Old systems used to work with punch cards which contained? A) Microsoft Word. B) Instruction guides. C) The operating system. D) Programs. Show Answer Correct Answer: D) Programs. 7. 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. 8. The operating system is a type of A) Utility software. B) Application software. C) General purpose software. D) System software. Show Answer Correct Answer: D) System software. 9. Which of the following is a component of OS? A) System Call Interface. B) Device Drivers. C) Inter Process Communications. D) All of these. Show Answer Correct Answer: D) All of these. 10. The operating systems ability to allow the user to move, delete and rename files A) User Management. B) File Management. C) Memory Management. D) Peripheral Management. Show Answer Correct Answer: B) File Management. 11. We cannot change the date & time settings of our computer. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 12. ..... is the one program running at all times on the computer A) Interrupt vector. B) Kernel. C) Bootstrap program. D) Control program. Show Answer Correct Answer: B) Kernel. 13. Programs which direct the operation of computers; instructions for a computer A) Hardware. B) Firewall. C) Computer. D) Software. Show Answer Correct Answer: D) Software. 14. What is the operating system for a Samsung phone? A) Windows. B) Android. C) MAC OSX. D) Linux. Show Answer Correct Answer: B) Android. 15. What does SVGA stand for? A) Standard Visual Graphics Array. B) Super Visual Graphics Array. C) Standard Video Graphics Array. D) Super Video Graphics Array. Show Answer Correct Answer: D) Super Video Graphics Array. 16. IT IS THE SCREEN WHERE ALL THE FILES AND APPLICATIONS ARE ARRANGED A) DESKTOP. B) WALLPAPER. C) SCREEN SAVERE. D) ICONS. Show Answer Correct Answer: A) DESKTOP. 17. ..... runs external devices A) Device runners. B) Device drivers. C) Device instructors. D) None of the above. Show Answer Correct Answer: B) Device drivers. 18. Small pictures appear on the desktop are called A) Images. B) Icon. C) Windows. D) Button. Show Answer Correct Answer: B) Icon. 19. On which section of the taskbar date and time are present? A) Start Button. B) Quick launch bar. C) Notification area. D) None of the above. Show Answer Correct Answer: C) Notification area. 20. What does the following command do?mv file1 file2 A) Moves file1 and file2. B) Combines file1 and file2. C) Renames file1 to file2. D) Renames file2 to file1. Show Answer Correct Answer: C) Renames file1 to file2. 21. Which does not include the operating system is A) OS/2. B) Qemu OS guest. C) Kali. D) FreeBSD. E) Symbian OS. Show Answer Correct Answer: B) Qemu OS guest. 22. Which of these devices can have an REAL TIME operating system? A) Gaming console. B) ATM. C) Tesla car. D) Server. Show Answer Correct Answer: C) Tesla car. 23. Which of these options is not available when you click the Power icon? A) Shut down. B) Restart. C) Force Shut down. D) Sleep. Show Answer Correct Answer: C) Force Shut down. 24. Which of the following is a binary code? A) 010111. B) 0301121. C) ABCD. D) KF1110. Show Answer Correct Answer: A) 010111. 25. Choose a characteristic of the meaning of open source. A) Free Use. B) Capitalism. C) Privatization. D) Processor. Show Answer Correct Answer: A) Free Use. 26. Concurrent access to shared data may result in ..... A) Data consistency. B) Data insecurity. C) Data inconsistency. D) None. Show Answer Correct Answer: C) Data inconsistency. 27. Which of the following is not a condition for deadlock? A) Mutual exclusion. B) Hold and wait. C) Preemption. D) Circular wait. Show Answer Correct Answer: C) Preemption. 28. Preemption means A) Process has high priority. B) Process is short. C) Process cannot be halted once execution begins. D) Process can be paused by system. Show Answer Correct Answer: D) Process can be paused by system. 29. What does the File System do? A) Edits files. B) Organizes and stores files on the computer. C) Runs programs. D) Controls the screen brightness. Show Answer Correct Answer: B) Organizes and stores files on the computer. 30. The operating system that responds to an event within a predetermined time is called A) Multi Processing. B) Batch Processing. C) Online Processing. D) Real Time Processing. Show Answer Correct Answer: D) Real Time Processing. 31. Which Operating System function allows more than one program can run at the same time? A) File Management. B) User Management. C) User Interface. D) Memory Management. Show Answer Correct Answer: D) Memory Management. 32. This user interface uses more computer memory A) GUI. B) CLI. C) All the above. D) None of the above. Show Answer Correct Answer: A) GUI. 33. A group of programs that manage services between hardware and applications. A) Application Programs. B) RAM. C) Operating System. D) CD-ROM. Show Answer Correct Answer: C) Operating System. 34. Choose the CORRECT operating system structure A) Multiprocessing. B) Kernel. C) Monolithic. D) Single processing. Show Answer Correct Answer: C) Monolithic. 35. What is a characteristic of a multi-processor system? A) It cannot increase overall system performance. B) It allows multiple processors to work together concurrently. C) It contains only one CPU. D) It is limited to single-threaded applications. Show Answer Correct Answer: B) It allows multiple processors to work together concurrently. 36. Which memory management technique involves dividing memory into fixed-sized blocks? A) Segmentation. B) Paging. C) Swapping. D) Contiguous Allocation. Show Answer Correct Answer: B) Paging. 37. On a Mac this is called a "Menu Bar", on on the Windows desktop screen it is a "Task Bar" . Where is this located on your screen? A) Right Side. B) Top. C) Bottom. D) Left Side. Show Answer Correct Answer: C) Bottom. 38. GIF stands for graphics interchange format. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 39. What components make up a general-purpose computer system? A) Peripheral devices and software applications. B) Network interfaces and storage devices. C) Hardware, system programs, and application programs. D) Memory, CPU, and I/O devices. Show Answer Correct Answer: C) Hardware, system programs, and application programs. 40. What operating system function allows a word processor program to close down before the print job it actioned has completed on the printer. A) Multi-tasking. B) Multi-programming. C) Spooling. D) Batch-processing. Show Answer Correct Answer: C) Spooling. 41. What can an operating system do? A) Allow the hardware and software to communicate?. B) Make a computer run faster. C) Make tea. D) Carry out hospital operations. Show Answer Correct Answer: A) Allow the hardware and software to communicate?. 42. Tags and instructions developed by the creator which tell the foundation of the system and how it was created A) Source code. B) C++. C) Java. D) UNIX. Show Answer Correct Answer: A) Source code. 43. The icons on the desktop represent only files. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 44. They ..... are small software made to run a particular device like printer, scanner, speaker etc. A) Operating System. B) Device Drivers. C) All the above. D) None of the above. Show Answer Correct Answer: B) Device Drivers. 45. The greek equivalent term of "time-sharing" is A) Time sharing. B) Efficiency. C) All the above. D) None of the above. Show Answer Correct Answer: A) Time sharing. 46. RTF stands fer Rich Text Format A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 47. Writing the command that has been determined in the program is an explanation of the interaction with a computer called A) Command language. B) Form fill in. C) Natural language. D) Direct manipulation. Show Answer Correct Answer: A) Command language. 48. Operating system is a set of programs that connects and manages software with ..... A) System. B) Application. C) User. D) Hardware. Show Answer Correct Answer: D) Hardware. 49. The type of network found in a school? A) WAN(Wide Area Network). B) LAN(Local Area Network). C) All the above. D) None of the above. Show Answer Correct Answer: B) LAN(Local Area Network). 50. A device that transmits digital data over analog utility lines and links with an ISP is called a A) Internet. B) Utility Line. C) Computer. D) Modem. Show Answer Correct Answer: D) Modem. 51. BIOS firmware was stored in a RAM/EPRAM (Erasable Programmable Random Access Memory) chip known as firmware on the PC motherboard. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 52. How can the OS help manage security of the system? A) The OS can hire backup. B) User accounts may be password protected. C) Files can self destruct after a set time. D) None of the above. Show Answer Correct Answer: B) User accounts may be password protected. 53. The left pane of the Start menu shows a list of recently opened commands. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 54. By operating system, the resource management can be done via ..... A) Time division multiplexing. B) Space division multiplexing. C) Time and space division multiplexing. D) None of the mentioned. Show Answer Correct Answer: C) Time and space division multiplexing. 55. One of the major activities of an operating regard to memory management are: A) Creating files and directories. B) Alert messages. C) Allocate and deallocate memory space as needed. D) Graphical user interface. Show Answer Correct Answer: C) Allocate and deallocate memory space as needed. 56. Consider a fully associative cache with 8 cache blocks (numbered 0-7) and the following sequence of memory block requests:4, 3, 25, 8, 19, 6, 25, 8, 16, 35, 45, 22, 8, 3, 16, 25, 7 If LRU replacement policy is used, which cache block will have memory block 7? A) 5. B) 7. C) 6. D) 4. Show Answer Correct Answer: A) 5. 57. Which os is used for managing large works A) Time sharing. B) Batch. C) Network. D) None of the above. Show Answer Correct Answer: B) Batch. 58. Which is Algorithm not applicable for preemptive scheduling A) First-Come, First-Serve (FCFS) Scheduling. B) Shortest Job First (SJF) Scheduling. C) Round-Robin (RR) Scheduling. D) Priority Scheduling. Show Answer Correct Answer: A) First-Come, First-Serve (FCFS) Scheduling. 59. What are the two kinds of semaphores? A) Binary & counting. B) Decimal & binary. C) Counting & decimal. D) Mutex & counting. Show Answer Correct Answer: A) Binary & counting. 60. Which is an example of an IP Address? A) Https://www.facebook.com. B) Facebook.com. C) Www.facebook.com. D) 67.154.32.32. Show Answer Correct Answer: D) 67.154.32.32. ← 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