This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Operating System > Class 7 Computer Science Chapter 2 Operating System – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. To do more than one task at a time A) Multi task. B) Single user. C) Operating system. D) Interface. Show Answer Correct Answer: A) Multi task. 2. Device controllers inform CPU that it is finished without operation by causing an ..... A) Control program. B) Interrupt vector. C) Bootstrap program. D) Kernel. Show Answer Correct Answer: B) Interrupt vector. 3. What is the purpose of the binding mechanism in RPC? A) To synchronize calls between the client and server. B) To map client requests to the correct server and procedure. C) To encrypt data transmitted over the network. D) To serialize data before transmission. Show Answer Correct Answer: B) To map client requests to the correct server and procedure. 4. 10) When a page fault occurs, the state of the interrupted process is ..... A) Disrupted. B) Invalid. C) Saved. D) None of the mentioned. Show Answer Correct Answer: C) Saved. 5. Which of the following scheduling algorithms is non-preemptive scheduling? A) SJF scheduling. B) Round-Robin scheduling. C) SRTF scheduling. D) None of these. Show Answer Correct Answer: A) SJF scheduling. 6. The bounded buffer problem is also known as ..... A) Readers-Writers problem. B) Dining-Philosophers problem. C) Producer-Consumer problem. D) None. Show Answer Correct Answer: C) Producer-Consumer problem. 7. When a process is in a "Blocked" state waiting for some I/O service. When the service is completed, it goes to the ..... A) Suspended state. B) Ready state. C) Terminated state. D) Running state. Show Answer Correct Answer: B) Ready state. 8. Full form of CLI ..... A) Character Line Interface. B) Command Line Interface. C) All the above. D) None of the above. Show Answer Correct Answer: B) Command Line Interface. 9. Is the BIOS a firmware? A) Yes. B) No. C) Maybe?. D) None of the above. Show Answer Correct Answer: A) Yes. 10. What is the high speed memory between the main memory and the CPU called? A) Register. B) Cache. C) Storage. D) Virtual. Show Answer Correct Answer: B) Cache. 11. To protect a computer from virus, you should install ..... in your computer. A) Disk cleanup. B) Antivirus. C) Backup wizard. D) Disk Defragmenter. Show Answer Correct Answer: B) Antivirus. 12. What type of operating system is Windows 10? A) Single-user OS. B) Multi-user OS. C) All the above. D) None of the above. Show Answer Correct Answer: A) Single-user OS. 13. Displays a list of installed program, which a user can start or use A) My Picture. B) All Programs. C) My Documents. D) None of the above. Show Answer Correct Answer: B) All Programs. 14. Which one is not an operating system? A) IOX. B) Windows. C) Android. D) Poloroid. Show Answer Correct Answer: D) Poloroid. 15. File management shows a list of (a) A) A. files and folder. B) Chats and contacts. C) Photos and videos. D) None of the above. Show Answer Correct Answer: A) A. files and folder. 16. Second step in running and preparing batch jobs is to A) Verify the work. B) Store output. C) Wait in the queue. D) Write on printed sheets. Show Answer Correct Answer: A) Verify the work. 17. Which command is used to display the unix version A) Uname-r. B) Uname-t. C) UNAME-N. D) Kernel. Show Answer Correct Answer: D) Kernel. 18. What is the maximum number of characters allowed in a file name in MS-DOS (excluding the extension)? A) 255. B) 16. C) 8. D) 32. Show Answer Correct Answer: C) 8. 19. What is the purpose of the BIOS (Basic Input/Output System) in a simple operating system? A) To manage the system's hardware components. B) To perform calculations for applications. C) To manage file storage and retrieval. D) To provide network services to applications. Show Answer Correct Answer: A) To manage the system's hardware components. 20. ..... displays current date and time, volume button and information about computer setting. A) Show desktop button. B) Quick Launch. C) Notifications Area. D) Start button. Show Answer Correct Answer: C) Notifications Area. 21. Four jobs to be executed on a single processor system arrive at time 0 in the order A, B, C, D. Their burst CPU time requirements are 4, 1, 8, 1 time units respectively. The completion time of A under round robin scheduling with time slice of one time unit is A) 4. B) 10. C) 9. D) 8. Show Answer Correct Answer: C) 9. 22. SJF is short for A) Shortest Job Final. B) Software Job First. C) Shortest Job First. D) System Job First. Show Answer Correct Answer: C) Shortest Job First. 23. What is the primary role of a job scheduler in an operating system? A) To manage CPU scheduling. B) To allocate memory to processes. C) To load processes into memory for execution. D) To handle I/O operations. Show Answer Correct Answer: C) To load processes into memory for execution. 24. Which vary in number and type, depending on the computer architecture A) Operating Systems. B) The registers. C) Signals. D) Counters. Show Answer Correct Answer: B) The registers. 25. The ..... , at the left corner of the taskbar, helps you open any program on your computer. A) Taskbar. B) Start button. C) Start menu. D) Folder. Show Answer Correct Answer: B) Start button. 26. What format is an Android Application gonna be created as? A) SDK. B) APK. C) XCode. D) Android Studio. Show Answer Correct Answer: B) APK. 27. WINDOWS WAS ORIGINALLY GOING TO BE CALLED AS A) INTERNET MANAGER. B) MULTI UESER MANAGER. C) INTERACTING MANAGER. D) INTERFACE MANAGER. Show Answer Correct Answer: D) INTERFACE MANAGER. 28. All of the following are examples of storage except ..... A) External drive. B) Linux. C) SSD. D) HDD. E) Flash drive. Show Answer Correct Answer: B) Linux. 29. Which structure is used by UNIX? A) Layered Structure. B) Simple Structure. C) Microkernel Structure. D) Monolithic Structure. Show Answer Correct Answer: D) Monolithic Structure. 30. What is a common feature of embedded systems? A) They store user data. B) They run multiple applications. C) They have a graphical user interface. D) They are part of a larger system. Show Answer Correct Answer: D) They are part of a larger system. 31. Identify the basic function of an operating system A) Limit specifies the length of the segment. B) Easy to isolate error and to debug. C) Execute user programs and make solving user problems easier. D) To allow the system to enter the deadlock state then recover. Show Answer Correct Answer: C) Execute user programs and make solving user problems easier. 32. Which of the following states indicates that a process is currently executing on the CPU? A) Blocked state. B) Terminated state. C) Ready state. D) Running state. Show Answer Correct Answer: D) Running state. 33. What is an operating system on a mobile phone or tablet? A) The glass screen on the device. B) The phone charger. C) A type of game you play on your phone. D) Software that makes your mobile device work. Show Answer Correct Answer: D) Software that makes your mobile device work. 34. Which component works as a pointer and helps you to point, click or double-click on the desktop? A) Mouse Pointer. B) TaskBar. C) Icons. D) Keyboard Pointer. Show Answer Correct Answer: A) Mouse Pointer. 35. WIMP stand for Windows, Icons, Menus and p??? A) Power. B) Pictures. C) Pointers. D) Punctuation. Show Answer Correct Answer: C) Pointers. 36. Consider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB, 300 KB, and 250 KB, where KB refers to kilobyte. These partitions need to be allotted to four processes of sizes 357 KB, 210 KB, 468 KB and 491 KB in that order. If the best fit algorithm is used, which partitions are NOT allotted to any process? A) 200 KB and 300 KB. B) 200 KB and 250 KB. C) 250 KB and 300 KB. D) 300 KB and 400 KB. Show Answer Correct Answer: A) 200 KB and 300 KB. 37. Which of the following is a disadvantage of a graphical user interface? A) It is simple to use. B) It requires a powerful device. C) It is intuitive to learn. D) It is easy to switch between applications. Show Answer Correct Answer: B) It requires a powerful device. 38. The internet is considered a WAN. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 39. Which operating system uses a microkernel architecture? A) Windows. B) Unintentional. C) MS-DOS. D) UNIX. Show Answer Correct Answer: B) Unintentional. 40. Is it possible to open Microsoft Excel ..... in Word? A) Texts. B) Files. C) Pages. D) None of the above. Show Answer Correct Answer: B) Files. 41. Which company makes the Windows operating system? A) Google. B) Amazon. C) Linux. D) Microsoft. Show Answer Correct Answer: D) Microsoft. 42. Which of the following file format supports in windows 7? A) NTFS. B) BSD. C) EXT. D) All of these. Show Answer Correct Answer: A) NTFS. 43. Which scheduling algo offers least response time? A) SJF. B) SRTF. C) Round Robin. D) Priority based. Show Answer Correct Answer: C) Round Robin. 44. Why is the File System important? A) It helps you print documents. B) It organizes files so they can be easily found. C) It controls the mouse pointer. D) It updates the operating system automatically. Show Answer Correct Answer: B) It organizes files so they can be easily found. 45. Computer are made up of ..... parts A) 2. B) 3. C) 5. D) 4. Show Answer Correct Answer: A) 2. 46. Which part of the operating system will remove data that is no longer needed to free up space for other programs being used? A) Memory management. B) File and disk management. C) User management. D) User interface. Show Answer Correct Answer: A) Memory management. 47. This type of interface is best for users with physical disabilities A) Command Line Interface. B) Graphical User Interface. C) Natural Language Interface. D) None of the above. Show Answer Correct Answer: C) Natural Language Interface. 48. Linux is more specific to the operating system? A) Correct. B) Salah. C) All the above. D) None of the above. Show Answer Correct Answer: B) Salah. 49. In Windows 10, an application that organizes the settings and customizes how the computer looks and functions. A) Windows Registry. B) Disk Management. C) Windows Update. D) Windows Settings App. Show Answer Correct Answer: D) Windows Settings App. 50. Any type of system that is capable of running or appearing to run more than one program at a time A) Distributed OS. B) Multi-user OS. C) Real-time. D) Multi-tasking OS. Show Answer Correct Answer: D) Multi-tasking OS. 51. Which command prints the directory stack? A) DIRS. B) Push. C) Cd. D) Mkdir. Show Answer Correct Answer: A) DIRS. 52. Which command is used to make a hidden directory in linux? A) Mkdir-hd directoryName. B) Mkdir.directoryName. C) Mkdir hidden directoryName. D) Mkdir-h directoryName. Show Answer Correct Answer: B) Mkdir.directoryName. 53. When making the OS using a flash, it is necessary? A) Hard drive. B) Bootable Flashdisk. C) CD/DVD. D) Floopy disk. Show Answer Correct Answer: B) Bootable Flashdisk. 54. What is the main advantage of a Command Line Interface (CLI) for advanced users? A) It is more visually appealing. B) It allows for faster and more precise control. C) It requires less technical knowledge. D) It provides more security features. Show Answer Correct Answer: B) It allows for faster and more precise control. 55. What is the work of 'search' facility? A) To find specific information or objects quickly. B) Increase visual appearance of the interface. C) Providing a tutorial for new users. D) Displaying advertisements based on user preferences. Show Answer Correct Answer: A) To find specific information or objects quickly. 56. Which of these devices can have an NETWORK operating system? A) Tesla car. B) ATM. C) Gaming console. D) Server. Show Answer Correct Answer: D) Server. 57. This type of interface requires a resource intense remote server to process requests A) Command Line Interface. B) Graphical User Interface. C) Natural Language Interface. D) None of the above. Show Answer Correct Answer: C) Natural Language Interface. 58. The ..... system is responsible for the user ..... which is essential to the management of user interfaces-for example a GUI for the end user and a command line interface for a technician to diagnose faults ..... A) Operating, interface(s). B) I/O, commands. C) All the above. D) None of the above. Show Answer Correct Answer: A) Operating, interface(s). 59. What is the function of a Menu-driven Interface (MDI)? A) To provide a touch-based interface. B) To present options as a series of menus. C) To display graphical icons. D) To execute background processes. Show Answer Correct Answer: B) To present options as a series of menus. 60. Which is the core of the operating system? A) Shell. B) Kernal. C) Command. D) Script. Show Answer Correct Answer: B) Kernal. Next →Related QuizzesComputer Science QuizzesClass 7 QuizzesClass 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books