This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Operating System > Class 7 Computer Science Chapter 2 Operating System – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is an Operating System? A) A keyboard. B) Physical parts of a computer. C) A videogame. D) Software that let a user work with a computer. Show Answer Correct Answer: D) Software that let a user work with a computer. 2. What is the command to list hidden files & directory? A) Ls-l. B) Ls-a. C) Ls. D) None of these. Show Answer Correct Answer: B) Ls-a. 3. What does the OS use to manage device communication? A) Drivers. B) Controllers. C) Protocols. D) Interfaces. Show Answer Correct Answer: A) Drivers. 4. Which of the following is true regarding threads in multithreading? A) Threads do not share the same address space. B) Threads share the same address space. C) Threads run independently without any coordination. D) Threads cannot be created dynamically during runtime. Show Answer Correct Answer: B) Threads share the same address space. 5. Windows Explorer can be used to copy, move, rename, and search for files and folders. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 6. In Linux, what is the root directory? A) /usr. B) /home. C) /bin. D) /. Show Answer Correct Answer: D) /. 7. What is the role of the scheduler in an operating system? A) Handling user input. B) Managing I/O operations. C) Allocating CPU time to processes. D) Creating virtual machines. Show Answer Correct Answer: C) Allocating CPU time to processes. 8. This button is used to manage your files and folders. A) Task View. B) Settings. C) File Explorer. D) Power. Show Answer Correct Answer: C) File Explorer. 9. A person who used his or her expertise to gain access to other peopled computers to get information illegally or do damage is a A) Programmer. B) Instant messenger. C) Spammer. D) Hacker. Show Answer Correct Answer: D) Hacker. 10. The small labelled pictures present on the desktop are called? A) Mouse. B) Icons. C) Background. D) None of the above. Show Answer Correct Answer: B) Icons. 11. The User Mode is concerned with the actual interface between the user and the system. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. Cloud computing refers to the type of environment that rungs tasks on smartphones and tablets A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 13. What do operating systems provide? A) A backspace button that you can press. B) Communication from you to the computer. C) A server that makes the keyboard work. D) Communication between your touchscreen and the speakers. Show Answer Correct Answer: B) Communication from you to the computer. 14. Hardware is different from software because ..... A) Hardware needs a person to make it work. B) A computer doesn't need software to work. C) It costs more. D) You can see hardware. Show Answer Correct Answer: D) You can see hardware. 15. THE FULL FORM OF GUI A) GRAPHICAL USER INTERFACE. B) GRAPHICS USED INTERFACE. C) GRAPHICAL USER INTERNET. D) None of the above. Show Answer Correct Answer: A) GRAPHICAL USER INTERFACE. 16. Can we rename any file in the computer? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 17. The operating system is a software that works as an interface or link between the user and ..... and ..... A) Application, hardware. B) User, Hardware. C) Software, Hardware. D) Hardware, BIOS. Show Answer Correct Answer: C) Software, Hardware. 18. Which of the following command is used to list hidden files? A) Ls-al. B) Ls-a. C) Ls-ld. D) None of the options. Show Answer Correct Answer: B) Ls-a. 19. Allocating time on the processor to individual processes is known as ..... A) CPU Clocking. B) CPU Scheduling. C) CPU Timing. D) CPU Sorting. Show Answer Correct Answer: B) CPU Scheduling. 20. Which of the following OS types is most suitable for air traffic control systems? A) Batch OS. B) Time-sharing OS. C) Interactive OS. D) Real-time. Show Answer Correct Answer: D) Real-time. 21. A computer uses ..... to organize all of the different files and applications that it contains. A) Icons. B) Trash Can. C) Applications. D) Folder. Show Answer Correct Answer: D) Folder. 22. ..... is a type of system software allows that allow a user to perform maintenance-type tasks A) Operating system. B) Utility program. C) Application software. D) System Software. Show Answer Correct Answer: B) Utility program. 23. Banker's algorithm is used? A) To prevent deadlock. B) To deadlock recovery. C) To solve the deadlock. D) None of these. Show Answer Correct Answer: A) To prevent deadlock. 24. Public Wi-Fi is? A) Unencrypted. B) Encrypted. C) Closed. D) Open. Show Answer Correct Answer: A) Unencrypted. 25. Which of the following is a Program Group? A) ACCESSORIES. B) PAINT. C) WORD. D) ALL OF THE ABOVE. Show Answer Correct Answer: A) ACCESSORIES. 26. Software that functions to run computer devices by controlling and controlling existing devices and managing all resources contained in the computer system is ..... A) Database software. B) Programming software. C) Operating system. D) Application software. Show Answer Correct Answer: C) Operating system. 27. When process states shifts between ready to running is called A) Process CreationR. B) Process Scheduling. C) Process Dispacter. D) Context Switching. Show Answer Correct Answer: C) Process Dispacter. 28. Where is the operating system placed in the memory? A) Either low or high memory (depending on the location of interrupt vector). B) In the low memory. C) In the high memory. D) None of the mentioned. Show Answer Correct Answer: A) Either low or high memory (depending on the location of interrupt vector). 29. The screen that appears after loading the Windows Operating system. A) Icons. B) File. C) Folder. D) Desktop. Show Answer Correct Answer: D) Desktop. 30. Which of the following is an Operating System? A) Memory. B) Word. C) Apple. D) Windows. Show Answer Correct Answer: D) Windows. 31. To recover from failures in the network operations ..... information may be maintained. A) Stateless. B) Operating system. C) Ip address. D) State. Show Answer Correct Answer: D) State. 32. Increased throughput, economy of scale, increased reliability A) Multiprocessor Systems. B) Caching. C) Timesharing. D) Multiprogramming. Show Answer Correct Answer: A) Multiprocessor Systems. 33. A tool for multi tasking is: A) Chrome. B) Excel. C) Task manger. D) Windows. Show Answer Correct Answer: C) Task manger. 34. What does a file extension tell your computer? A) Which file name to display. B) When the file was created. C) Where a program is saved. D) What type of program to open. Show Answer Correct Answer: D) What type of program to open. 35. 2) What type of scheduling is round-robin scheduling? A) Non-linear data scheduling. B) Preemptive scheduling. C) Linear data scheduling. D) Non-preemptive scheduling. Show Answer Correct Answer: B) Preemptive scheduling. 36. Semaphore is a/an ..... to solve the critical section problem. A) Hardware for a system. B) Special program for a system. C) Integer variable. D) None of the mentioned. Show Answer Correct Answer: C) Integer variable. 37. In which os we can access files which are not present in the same system? A) Batch os. B) Network os. C) Real time. D) Distributed os. Show Answer Correct Answer: D) Distributed os. 38. A user interface made up of a command prompt is called: A) Graphical User Interface. B) Super User Interface. C) Command Line Interface. D) Command User Interface. Show Answer Correct Answer: C) Command Line Interface. 39. An acronym for Compact Disc Read-Only Memory. A) OP. B) NASA. C) RAM. D) CD-ROM. Show Answer Correct Answer: D) CD-ROM. 40. RAM is a term used to describe? A) A woolly animal with horns that will knock you over if you let it. B) Really Awesome Memory. C) Random Access Memory. D) Very RAndom Memory. Show Answer Correct Answer: C) Random Access Memory. 41. The following is not a type of Systems Software A) Applications. B) Operating Systems. C) Device Drivers. D) Utility Programs. Show Answer Correct Answer: A) Applications. 42. Which type of user interface is most likely to be used in automated teller machines (ATMs)? A) Graphical User Interface (GUI). B) Command Line Interface (CLI). C) Menu-driven Interface (MDI). D) Voice User Interface (VUI). Show Answer Correct Answer: C) Menu-driven Interface (MDI). 43. Why might an operating system include a disk defragmentation utility? A) To change the size of partitions on the disk. B) To repair damaged sectors on a disk. C) To reorganise small amounts of unused disk space. D) Its saves storage space on disk. Show Answer Correct Answer: C) To reorganise small amounts of unused disk space. 44. Main memory is a non-volatile storage device. When the computer made turn off everything stored in RAM will be erased automatically. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 45. We have to click the ..... button before selecting the Shut Down option. A) Start. B) File. C) Taskbar. D) Any button. Show Answer Correct Answer: A) Start. 46. The smallest type of network is ..... A) SAN. B) PAN. C) MAN. D) WAN. Show Answer Correct Answer: B) PAN. 47. The ..... is the process of dividing the disk into tracks and sectors. A) Tracking. B) Formatting. C) Crashing. D) Allotting. Show Answer Correct Answer: B) Formatting. 48. What is problem associated with FCFS cpu scheduling algo? A) Convoy effect. B) Belady's anomaly. C) Gran effect. D) None. Show Answer Correct Answer: A) Convoy effect. 49. What is the Shortcut key to close a currently active window? A) ALT+F4. B) Ctrl+ Z. C) Shift +F6. D) Shift+ C. Show Answer Correct Answer: A) ALT+F4. 50. Name the OS for mobile devices. A) LINUX. B) OF THE. C) ANDROID. D) None of the above. Show Answer Correct Answer: C) ANDROID. 51. The long horizontal bar at the bottom of the screen. A) Icons. B) Desktop. C) Taskbar. D) Start button. Show Answer Correct Answer: C) Taskbar. 52. ..... is a system Software A) Windows. B) Ram. C) CPU. D) None of above. Show Answer Correct Answer: A) Windows. 53. When I finish using my computer, I always ..... A) Close it down. B) Shut it down. C) Shut it off. D) None of the above. Show Answer Correct Answer: B) Shut it down. 54. Which of the following is a non-pre-emptive scheduling algorithm? A) Round Robin (RR). B) Priority Scheduling. C) Shortest Job First (SJF). D) Multi-level Queue Scheduling. Show Answer Correct Answer: C) Shortest Job First (SJF). 55. Hardware is what makes a computer useful, not the software. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 56. Cost of buying and running a server are high. A) ADVANTAGE. B) DISADVANTAGE. C) All the above. D) None of the above. Show Answer Correct Answer: B) DISADVANTAGE. 57. In a futuristic world where advanced technology governs daily life, what does the term DOS stand for in the context of operating systems that manage data flow and device interactions? A) Door Operating system. B) Disk Operating system. C) Dog Operating system. D) None of these. Show Answer Correct Answer: B) Disk Operating system. 58. In a priority scheduling algorithm, what happens when two processes have the same priority? A) They are executed in the order they arrive. B) One process is always executed first. C) They are both terminated. D) They are executed simultaneously. Show Answer Correct Answer: A) They are executed in the order they arrive. 59. Windows can be updated from ..... A) My Pictures. B) Control Panel. C) My Computer. D) Recycle Bin. Show Answer Correct Answer: B) Control Panel. 60. Which is NOT a characteristic of desktop operating systems? A) It supports a single user. B) It runs single-user applications. C) It supports print servers. D) It shares files and folders on a small network with limited security. Show Answer Correct Answer: C) It supports print servers. ← 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 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