This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Operating System > Class 7 Computer Science Chapter 2 Operating System – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 14 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Hardware or software designed to guard against unauthorized access to a computer network is known as A) Hacker-proof program. B) Firewall. C) Hacker-resistant server. D) Encryption safe wall. Show Answer Correct Answer: B) Firewall. 2. On my computer, I have a picture of my cat as the ..... A) Desktop background. B) Desktop picture. C) Desktop scene. D) None of the above. Show Answer Correct Answer: A) Desktop background. 3. Which of the following displays Programs that are currently running? A) Status Bar. B) Men's menu. C) Title Bar. D) Task Bar. Show Answer Correct Answer: D) Task Bar. 4. How do you remove a file? A) Right-click on the file and choose 'delete' or press 'delete' key. B) Select the file and press the 'Enter'. C) Drag the file to recycle bin. D) Open the file and click 'Close' to remove it. Show Answer Correct Answer: A) Right-click on the file and choose 'delete' or press 'delete' key. 5. The operating system is responsible for device ..... :the management of all ..... , such as I/O devices and graphics cards (including storage devices). A) Management, devices. B) Power, expectation. C) All the above. D) None of the above. Show Answer Correct Answer: A) Management, devices. 6. Which of the following is a shortcut used to open task manager? A) Ctrl + Shift + Esc. B) Ctrl + Shift + D. C) ALT + F4. D) Ctrl + Shift + T. Show Answer Correct Answer: A) Ctrl + Shift + Esc. 7. What is the main objective of CPU scheduling? A) Reducing system complexity. B) Minimizing CPU usage. C) Increasing storage capacity. D) Maximizing system performance. Show Answer Correct Answer: D) Maximizing system performance. 8. Which is the most popular Operating System? A) Linux. B) IOS. C) Windows. D) Android. Show Answer Correct Answer: C) Windows. 9. A Computer that is easy to operate is called A) User-friendly computer. B) Wonderful computer. C) All the above. D) None of the above. Show Answer Correct Answer: A) User-friendly computer. 10. An operating system interface that allows a user to interact with the computer by displaying text on a screen and accepting input from the keyboard. A) Command Line Interface. B) Disk Management. C) Application Management. D) Service Management. Show Answer Correct Answer: A) Command Line Interface. 11. Software updates are important A) Only apply to operating systems. B) Patches and fixes that are applied to a vulnerable system. C) Should only be applied when, or if you decide to. D) Come in threes. Show Answer Correct Answer: B) Patches and fixes that are applied to a vulnerable system. 12. The term gigabyte refers to A) 1024 gigabytes. B) 1024 bytes. C) 1024 megabytes. D) 1024 kilobytes. Show Answer Correct Answer: C) 1024 megabytes. 13. O.S Make the computer system convenient to use A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. Handles the basic input and output of the computer A) Intermediate Code. B) Devices Drivers. C) Virtual Machine. D) BIOS. Show Answer Correct Answer: D) BIOS. 15. A software program that is a bridge of communication from software and hardware and helps users operate their computers? A) Sistem Input output. B) Information Systems. C) Digital system. D) Operating system. Show Answer Correct Answer: D) Operating system. 16. A program in execution is called A) Process. B) Instruction. C) Function. D) Procedure. Show Answer Correct Answer: A) Process. 17. Which of these is available on the desktop? A) Icons. B) Task bar. C) Both of these. D) None of these. Show Answer Correct Answer: C) Both of these. 18. CPU switches jobs so frequently that each user can interact with each job while it is running (interactive computing) A) Timesharing. B) Multiprocessor Systems. C) Multiprogramming. D) Caching. Show Answer Correct Answer: A) Timesharing. 19. When ..... is clicked, it minimizes all open window and shows the Desktop. A) Quick Launch. B) Show desktop button. C) Start button. D) Notifications Area. Show Answer Correct Answer: B) Show desktop button. 20. Write True or False for the following:Deleted Files or folders are stored in the recycle bin. A) True. B) False. C) No comments. D) None of the above. Show Answer Correct Answer: A) True. 21. Voice-controlled virtual assistant in Windows 10 A) Crotana box. B) Task bar. C) Start button. D) None of these. Show Answer Correct Answer: A) Crotana box. 22. Why semaphore is used? A) Synchronization. B) To solve critical problem. C) To do activity. D) None of the above. Show Answer Correct Answer: B) To solve critical problem. 23. What is the primary benefit of using threads in an operating system? A) They allow for faster processing of I/O operations. B) They allow for easier management of system resources. C) They allow for better isolation between different parts of a program. D) They allow for parallel processing, which can improve overall system performance. Show Answer Correct Answer: B) They allow for easier management of system resources. 24. The operating system used by students in the computer rooms at Rosebank college Durban is ..... A) Windows 8. B) Windows 7. C) Windows 10. D) None of the above. Show Answer Correct Answer: C) Windows 10. 25. What is a line of instruction called? A) Code. B) Program. C) Software. D) None of the above. Show Answer Correct Answer: A) Code. 26. Which is the Operating system developed by Apple company? A) Windows. B) Android. C) MAC OS. D) None of these. Show Answer Correct Answer: C) MAC OS. 27. What happens when you click on 'My Computer'? A) The screen goes blank for a moment. B) A window opens showing drives and folders. C) A message appears saying 'Access Denied'. D) A pop-up asks for a password. Show Answer Correct Answer: B) A window opens showing drives and folders. 28. Round robin scheduling falls under the category of ..... A) Non-preemptive scheduling. B) Preemptive scheduling. C) All of the mentioned. D) None of the mentioned. Show Answer Correct Answer: B) Preemptive scheduling. 29. After Deleting files from computer where they go and settle? A) Folder. B) Drive. C) Documents. D) Recycle bin. Show Answer Correct Answer: D) Recycle bin. 30. Whenever we switch on our computer, the first thing it loads is the Operating System. This process of preparing system for use is called A) Interface. B) Booting. C) All the above. D) None of the above. Show Answer Correct Answer: B) Booting. 31. What is the name of Windows 10 personal assistant? A) Siri. B) Cortana. C) Crown. D) None of the above. Show Answer Correct Answer: B) Cortana. 32. Why do application programs require an operating system to function effectively? A) To optimize system performance. B) To provide common services for computer programs. C) To manage computer hardware and software resources. D) To enhance device security. Show Answer Correct Answer: C) To manage computer hardware and software resources. 33. If a page is accessed that is not present in RAM, the processor issues a: A) Interrupt. B) Block fault interrupt. C) Page frame interrupt. D) Page fault interrupt. Show Answer Correct Answer: D) Page fault interrupt. 34. Multi tasking is the major activity of which service A) Program Execuation. B) File managment. C) Resource managment. D) Security. Show Answer Correct Answer: C) Resource managment. 35. Most modern OS integrate what into the kernel? A) Hardware. B) Cache. C) GUI. D) Processes. Show Answer Correct Answer: C) GUI. 36. An operating system where input acts without delay within a guaranteed amount of time A) Multi-user OS. B) Multi-tasking OS. C) Real-Time OS. D) Distributed OS. Show Answer Correct Answer: C) Real-Time OS. 37. The link between two processes P and Q to send and receive messages is called ..... A) Communication link. B) Message-passing link. C) Synchronization link. D) All of the mentioned. Show Answer Correct Answer: A) Communication link. 38. An Amazon Echo has lights which show when the device is listening, processing data, or an error has occurred. Are the lights ..... A) Input devices. B) Output devices. C) All the above. D) None of the above. Show Answer Correct Answer: B) Output devices. 39. An open-source, cross-platform operating system that runs on desktops, notebooks, tablets, and smartphones. A) UEFI. B) Windows. C) Device driver. D) Linux. Show Answer Correct Answer: D) Linux. 40. Which operating system is iOS based off of? A) Unix. B) Mac OSX. C) Linux. D) Windows NT Kernel. Show Answer Correct Answer: A) Unix. 41. Which of the following is not an operating system job? A) Controlling, coordinating and coordinating hardware. B) Provide user interface. C) Pick up and manipulate files. D) BIOS installation. Show Answer Correct Answer: C) Pick up and manipulate files. 42. ..... is a simple way of describing a set of instructions that does not have to use specific syntax. A) Programming Language. B) Diagram. C) Flowchart. D) Pseudocode. Show Answer Correct Answer: D) Pseudocode. 43. Which command is used to sort the lines of data in a file in reverse order? A) Sort-r. B) Sh. C) Sort. D) St. Show Answer Correct Answer: A) Sort-r. 44. True or false:The control panel allows users to configure basic computer system settings and install software and hardware. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 45. Which of the following is a title software? A) Redhat 9. B) Ubuntu 20. C) Windows 10. D) Debian 11. Show Answer Correct Answer: C) Windows 10. 46. Which of the following describes segmentation in memory management? A) Using a single contiguous block of memory. B) Dividing memory into fixed-size pages. C) Dividing memory into variable-sized segments based on logical units. D) Swapping processes in and out of memory. Show Answer Correct Answer: C) Dividing memory into variable-sized segments based on logical units. 47. What is context switching? A) Switching between different processes without saving states. B) Switching between threads within a process. C) The process of storing and restoring the state of a process. D) Changing the priority of a process. Show Answer Correct Answer: C) The process of storing and restoring the state of a process. 48. 10 In Unix, which system call creates the new process? A) Create. B) Fork. C) New. D) None of the mentioned. Show Answer Correct Answer: B) Fork. 49. What is the role of the operating system in managing computer resources? A) To manage memory access. B) To control external devices. C) To provide a user interface. D) To allocate processor time. Show Answer Correct Answer: A) To manage memory access. 50. Apple iOS is ..... A) Open-source software. B) Closed-source software. C) Both a and b. D) None of them. Show Answer Correct Answer: B) Closed-source software. 51. Which of the following is not an example of an OS for Smart phone? A) UNIX. B) IOS. C) Windows Phone 7. D) Android. Show Answer Correct Answer: A) UNIX. 52. A computer uses ..... hold files A) Icons. B) Folder. C) Recycle bin. D) Applications. Show Answer Correct Answer: B) Folder. 53. I keep all my digital photos in a ..... called "Photos" A) Folder. B) Packet. C) Box. D) None of the above. Show Answer Correct Answer: A) Folder. 54. Which OS feature helps you see which programs are running and how much memory they use? A) Task Manager. B) Settings. C) Control Panel. D) File System. Show Answer Correct Answer: A) Task Manager. 55. In the context of operating systems, what does the term "spooling" refer to? A) A method of data compression. B) A technique for managing print jobs. C) A type of user interface. D) A process scheduling algorithm. Show Answer Correct Answer: B) A technique for managing print jobs. 56. An operating system is also known as OS. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 57. When were MS windows operating systems proposed? A) 1995. B) 1990. C) 1994. D) 1985. Show Answer Correct Answer: D) 1985. 58. Word processing, spreadsheet, and photo editing are examples of A) Operating system software. B) Platform software. C) Application software. D) System software. Show Answer Correct Answer: C) Application software. 59. The taskbar can't be moved to any of the four sides of the desktop. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 60. ..... is a complete operating system that works on a desktop computer, notebook computer, or mobile computing device. A) Stand-alone OS. B) Server the. C) Mobile the. D) Free OS. Show Answer Correct Answer: A) Stand-alone OS. ← 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