This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Operating System > Class 7 Computer Science Chapter 2 Operating System – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 18 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Deleted Files or folders are stored in the recycle bin. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. A list of options a user can choose from is a ..... A) Tab. B) List. C) Menu. D) Form. Show Answer Correct Answer: C) Menu. 3. What does the term "turnaround time" refer to in process scheduling? A) Time the process spends in the ready queue. B) Time taken by a process to complete from submission to completion. C) Time it waits before execution starts. D) Time spent in CPU for executing instructions. Show Answer Correct Answer: B) Time taken by a process to complete from submission to completion. 4. What is the mode in which the operating system kernel operates? A) Kernel Mode. B) User Mode. C) Safe Mode. D) Debug Mode. Show Answer Correct Answer: A) Kernel Mode. 5. ..... option is used to change the date and time. A) Adjust date and time. B) Alter date and time. C) All the above. D) None of the above. Show Answer Correct Answer: A) Adjust date and time. 6. Which command is used to list all files and directories in the current directory in Linux? A) Dir. B) List. C) Ls. D) Show. Show Answer Correct Answer: C) Ls. 7. How many operating systems are there based on tasks supported at a time? A) 2. B) 7. C) 5. D) 9. Show Answer Correct Answer: B) 7. 8. What is the main advantage of a GUI? A) Does not need updating. B) Required a less powerful computer. C) Makes the computer easier to use. D) Reduces the cost of computing. Show Answer Correct Answer: C) Makes the computer easier to use. 9. Which is the latest version of windows 10? A) 10 1909. B) 10 2367. C) 10 2004. D) 7786. Show Answer Correct Answer: C) 10 2004. 10. In the year 2045, as humanity thrives in a digital utopia, which tech giant is credited with the creation of the Windows operating system that powers most of the advanced devices? A) DuckDuckGo. B) Yahoo!. C) Microsoft. D) Google. Show Answer Correct Answer: C) Microsoft. 11. Software is a series of ..... that tells a computer what tasks to perform and how to perform them. A) Instruction. B) Data. C) Information. D) Utility. Show Answer Correct Answer: A) Instruction. 12. You cannot customize the Taskbar to best suit your needs. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 13. Which of the following is not a typical function of an operating system? A) Managing processes. B) Controlling I/O devices. C) Managing memory. D) Compiling programs. Show Answer Correct Answer: D) Compiling programs. 14. The scrambling of code is known as A) Encryption. B) A firewall. C) Scrambling. D) Password proofing. Show Answer Correct Answer: A) Encryption. 15. WHAT IS FOR RTOS DESIGNED A) HANDLING INTERNAL COMPUTER ISSUES. B) HANDLING MEMORY STORAGE. C) HANDLING REAL LIFE SCENARIOS AND PROBLEMS. D) HANDLING REAL TIME OPERATING SYSTEM. Show Answer Correct Answer: C) HANDLING REAL LIFE SCENARIOS AND PROBLEMS. 16. These are programs that are used to create and display information in form of slide show. A) PRESENTATION SOFTWARE. B) SPREADSHEET SOFTWARE. C) DOCUMENT PRODUCTION SOFTWARE. D) DATABASE MANAGEMENT SOFTWARE. Show Answer Correct Answer: A) PRESENTATION SOFTWARE. 17. USER INTERFACE CAN BE DEVIDED INTO A) 1. B) 3. C) 2. D) 4. Show Answer Correct Answer: C) 2. 18. Which feature would you use to change your account password? A) File System. B) Control Panel. C) Settings. D) Task Manager. Show Answer Correct Answer: C) Settings. 19. You can login into a remote computer through A) HTTP. B) Telnet. C) FTP. D) TCP. Show Answer Correct Answer: B) Telnet. 20. Which of the following is a type of a program or software? A) Application. B) Desktop. C) Taskbar. D) None of the above. Show Answer Correct Answer: A) Application. 21. Where is an operating system installed? A) ROM. B) CPU. C) Hard Disk. D) RAM. Show Answer Correct Answer: C) Hard Disk. 22. Consider the virtual page reference string 1, 2, 3, 2, 4, 1, 3, 2, 4, 1 On a demand paged virtual memory system running on a computer system that main memory size of 3 pages frames which are initially empty. Let LRU, FIFO and OPTIMAL denote the number of page faults under the corresponding page replacements policy. Then A) OPTIMAL < FIFO < LRU. B) OPTIMAL = LRU. C) OPTIMAL = FIFO. D) OPTIMAL < LRU < FIFO. Show Answer Correct Answer: A) OPTIMAL < FIFO < LRU. 23. What does the term 'internal fragmentation' refer to? A) Unused memory within allocated blocks. B) Memory that cannot be allocated due to fragmentation. C) Excessive memory allocation for processes. D) Memory that is inaccessible to the operating system. Show Answer Correct Answer: A) Unused memory within allocated blocks. 24. What is the role of an operating system in managing shared resources? A) To provide antivirus protection. B) To queue requests for shared resources. C) To update software automatically. D) To enhance graphics performance. Show Answer Correct Answer: B) To queue requests for shared resources. 25. Wasting of memory within a partition, due to a difference in size of a partition, due to a difference in size of a partition and of the object resident within it, is called- A) Compaction. B) Coalescing. C) External fragmentation. D) Internal fragmentation. Show Answer Correct Answer: D) Internal fragmentation. 26. The program in our operating system always deals with what address? A) Logical address. B) Virtual address. C) Both. D) Neither. Show Answer Correct Answer: C) Both. 27. The ..... can be seen at the bottom of the screen as a long horizontal bar. A) Start bar. B) Taskbar. C) All the above. D) None of the above. Show Answer Correct Answer: B) Taskbar. 28. When files or folders are deleted from hard disk, Windows places them in ..... A) Start Menu. B) Recycle Bin. C) Task Bar. D) Control Panel. Show Answer Correct Answer: B) Recycle Bin. 29. You can get a lot of free apps, games and songs by ..... A) Windows store. B) Icons. C) Desktop. D) None of the above. Show Answer Correct Answer: A) Windows store. 30. Which operating system are iOS applications designed in? A) Windows 8.1/10. B) Mac OSX. C) Linux. D) Unix. Show Answer Correct Answer: B) Mac OSX. 31. Which page replacement algo is associated with Beladys anomaly? A) LRU. B) FCFS. C) Optimal page replacement. D) MRU. Show Answer Correct Answer: B) FCFS. 32. Microsoft Office is an Operating System. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 33. What is the main function of a page replacement algorithm? A) To determine which page to remove from memory when a new page is needed. B) To allocate memory to processes. C) To manage disk storage. D) To optimize CPU scheduling. Show Answer Correct Answer: A) To determine which page to remove from memory when a new page is needed. 34. Diving processor time between processes so that they appear to multitask is known as: A) Fish Slicing. B) Time Slicing. C) Idle Time. D) Time waiting. Show Answer Correct Answer: B) Time Slicing. 35. What is the part of the OS that allows users to interact with the computer? A) Task Manager. B) File System. C) User Interface. D) Settings. Show Answer Correct Answer: C) User Interface. 36. The binary semaphores Values is restricted to ..... A) Any value. B) 0 and 1. C) 0. D) 1. Show Answer Correct Answer: B) 0 and 1. 37. What's the relationship between computers and operating systems? A) Computers can function without operating systems. B) Operating systems are essential software that enable computers to function and interact with users. C) Operating systems are hardware components of computers. D) Operating systems are only used in smartphones, not computers. Show Answer Correct Answer: B) Operating systems are essential software that enable computers to function and interact with users. 38. What percentage of Americans think the ears of a chocolate bunny should be the first to be eaten A) 50%. B) 99%. C) 76%. D) 24%. Show Answer Correct Answer: C) 76%. 39. What type of Software is needed to control the computer's hardware? (1-3) A) Systems Software. B) Bespoke Software. C) Programming Software. D) Application Software. Show Answer Correct Answer: A) Systems Software. 40. Which of the following is not another function for the operating system? A) Process management. B) File management. C) Memory management. D) Time management. Show Answer Correct Answer: D) Time management. 41. What is the importance of OS patching in security? A) To fix vulnerabilities and enhance system stability. B) To add new features to the operating system. C) To improve user interface design. D) To increase hardware compatibility. Show Answer Correct Answer: A) To fix vulnerabilities and enhance system stability. 42. Desktop is the screen background and main area of window where icons, taskbar, notification area are appears A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 43. It displays all the active applications on the desktop. A) Lock screen. B) File explorer. C) Windows 10. D) Task View. Show Answer Correct Answer: D) Task View. 44. The ..... is the measurement of things such as fingerprints and retinal scans used for security access. A) Computer Security. B) Biometrics. C) Bio-measurement. D) Smart weapon machinery. Show Answer Correct Answer: B) Biometrics. 45. Which elements are included in GUI? A) Menu. B) Button. C) Ribbon. D) All of the above. Show Answer Correct Answer: D) All of the above. 46. Which method is the best among file allocation methods? A) Linked. B) Contiguous. C) Indexed. D) None. Show Answer Correct Answer: C) Indexed. 47. What does a server do? A) It provides a particular service and manages resources. B) Connects the computer to a mouse. C) It's the computer's memory. D) Provides the basic functions of the computer. Show Answer Correct Answer: A) It provides a particular service and manages resources. 48. Which button is present at the extreme left side of the taskbar? Navigation button A) Start button. B) Navigation button. C) Menu. D) None of the above. Show Answer Correct Answer: A) Start button. 49. A signal sent by a hardware or software to CPU indicating that something needs attention A) Interrupt. B) Waiting. C) Disturbance. D) Exclusion. Show Answer Correct Answer: A) Interrupt. 50. What is the primary purpose of RPC in distributed systems? A) To invoke procedures on remote machines as if they were local. B) To manage concurrency in multi-threaded applications. C) To ensure fault tolerance in distributed databases. D) To enable file sharing across networks. Show Answer Correct Answer: A) To invoke procedures on remote machines as if they were local. 51. What is the basic logo of the Windows System Operating A) Four logo-shaped boxes. B) Four Window-Shaped Boxes. C) Four flag-shaped boxes. D) Four wave-shaped boxes. Show Answer Correct Answer: B) Four Window-Shaped Boxes. 52. In a multitasking OS, how does the system manage multiple programs? A) By executing one program permanently. B) By running multiple CPUs per user. C) By switching CPU control among programs. D) By giving all programs equal CPU time. Show Answer Correct Answer: C) By switching CPU control among programs. 53. Below is not the task of the operating system A) As a liaison between users and application programs. B) As a place to put the application program. C) Set the work system in a computer. D) As the process of processing all governments. Show Answer Correct Answer: D) As the process of processing all governments. 54. The ..... is an application which now comes built-in Windows OS & it allows Windows users to encrypt all drive for security purpose. A) Windows Defender. B) BitLocker. C) Microsoft Essential. D) MS Office. Show Answer Correct Answer: B) BitLocker. 55. Operating system is a Hardware. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 56. The splitting of a large program into a number of smaller programs A) Paging. B) Segmentation. C) Virtual Memory. D) None of the above. Show Answer Correct Answer: B) Segmentation. 57. In a futuristic world, which operating system do people primarily use on their advanced communication devices? A) Windows. B) Mac. C) Linux. D) Android. Show Answer Correct Answer: D) Android. 58. Half-way type of code which is standard across machine types. Runs on a virtual machine. A) Virtual Machine. B) Intermediate Code. C) Devices Drivers. D) BIOS. Show Answer Correct Answer: B) Intermediate Code. 59. WiFi calling is integrated into every mobile operating system A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 60. In P2P there is ..... A) Dedicated Server. B) Same computer as server/client. C) Multiple server. D) A server cannot act as client. Show Answer Correct Answer: B) Same computer as server/client. ← 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