This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Operating System > Class 7 Computer Science Chapter 2 Operating System – Quiz 27 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 27 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Operating System is also a resource allocator A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 2. ..... is an operating system that is designed specifically to support a network. A) Stand-alone OS. B) Server the. C) Mobile the. D) Free OS. Show Answer Correct Answer: B) Server the. 3. Windows XP, Windows 10 and Windows XP are examples of: A) Device driver. B) Computer hardware. C) Application software. D) Operating system. Show Answer Correct Answer: D) Operating system. 4. There are two types of Software: A) Hardware and Operating System. B) Input and Output. C) Data and Information. D) Application Software and System Software. Show Answer Correct Answer: D) Application Software and System Software. 5. Which command is used to clear the screen in the Linux terminal? A) Clear. B) Reset. C) Flush. D) Cls. Show Answer Correct Answer: A) Clear. 6. Malicious software is known as A) Illegalware. B) Maliciousware. C) Barber. D) Malware. Show Answer Correct Answer: D) Malware. 7. The user would see nothing but a black screen. A) GUI. B) CLI. C) All the above. D) None of the above. Show Answer Correct Answer: B) CLI. 8. What does a system call allow a user program to do? A) Request a service from the OS. B) Access hardware directly. C) Execute its own machine code. D) Switch to another process. Show Answer Correct Answer: A) Request a service from the OS. 9. What is the concept of "real-time scheduling" primarily used for? A) Time-sensitive systems like embedded systems. B) Desktop applications. C) Cloud computing systems. D) General-purpose computing. Show Answer Correct Answer: A) Time-sensitive systems like embedded systems. 10. This serves as a security device between a computer and Internet sites or between multiple computer networks A) Hardware. B) Software. C) Firewall. D) Operating system. Show Answer Correct Answer: C) Firewall. 11. Duplicating a file or folder is done by ..... action. A) Rename. B) Copy-paste. C) Cut-paste. D) Delete. Show Answer Correct Answer: B) Copy-paste. 12. Thrashing is related to degree of A) Multiprogramming. B) Fragmentation. C) Segmentation. D) Paging. Show Answer Correct Answer: A) Multiprogramming. 13. Shared memnory and message passing are used in A) Security. B) Communication. C) File Transfer. D) Memory Managment. Show Answer Correct Answer: B) Communication. 14. It grants permission to use computer system resources to each process. A) Scheduler. B) Supervisor. C) Interrupt handler. D) Memory manager. Show Answer Correct Answer: B) Supervisor. 15. What is a buffer? A) The part of RAM that is used to store the operating system. B) Unused storage space on a hard disk. C) An area of memory that is used to temporarily store data. D) None of the above. Show Answer Correct Answer: C) An area of memory that is used to temporarily store data. 16. In which OS type are jobs grouped together and processed one after the other without interaction? A) Batch OS. B) Multitasking OS. C) Real-time. D) Time-sharing OS. Show Answer Correct Answer: A) Batch OS. 17. How is degree of multiprogramming related to CPU utilization? A) Linear increase. B) First non linear increase then non linear decrease. C) Linear decrease. D) Irregular. Show Answer Correct Answer: B) First non linear increase then non linear decrease. 18. Collecting personal information and effectively posing as another individual is known as the crime of A) Spooling. B) Spoofing. C) Identity theft. D) Hacking. Show Answer Correct Answer: C) Identity theft. 19. What is the folder used for? A) The folder is used to send emails to many recipients. B) The folder is used to organize and store files. C) Folders are used to create new software applications. D) The folder is used to display pictures on the screen. Show Answer Correct Answer: B) The folder is used to organize and store files. 20. What is a key advantage of a Graphical User Interface (GUI) over a Command Line Interface (CLI)? A) It is more secure. B) It is easier for beginners to use. C) It requires less memory. D) It allows faster command execution. Show Answer Correct Answer: B) It is easier for beginners to use. 21. Which type of interface uses WIMP elements? A) Command Line Interface. B) Graphical User Interface. C) Touch Interface. D) Voice Interface. Show Answer Correct Answer: B) Graphical User Interface. 22. Double-clicking the ..... mouse button can open any program on the desktop. A) Right. B) Left. C) Both Right and Left. D) None of these. Show Answer Correct Answer: B) Left. 23. Lack of security that a client/server type offers. A) ADVANTAGE. B) DISADVANTAGE. C) All the above. D) None of the above. Show Answer Correct Answer: B) DISADVANTAGE. 24. A type of interface which allows the user to verbally interact with a computer 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. 25. ..... allows the user to interact with the operating system using keyboard only. A) Keyboard. B) GUI. C) CPU. D) CLI. Show Answer Correct Answer: D) CLI. 26. Bounded capacity and Unbounded capacity queues are referred to as ..... A) Automatic buffering. B) User defined buffering. C) No buffering. D) Programmed buffering. Show Answer Correct Answer: A) Automatic buffering. 27. What command is used to display the contents of a file in a Linux/Unix system? A) Content. B) Show. C) Display. D) Cat. Show Answer Correct Answer: D) Cat. 28. What is the operating system designed for use in computer networks? A) Vista. B) OF THE. C) Windows NT. D) Linux. Show Answer Correct Answer: C) Windows NT. 29. What is the shortcut key to open File Explorer in Windows 10? A) Win + F. B) Win + A. C) Win + E. D) Win + D. Show Answer Correct Answer: C) Win + E. 30. F1:-Process are isolatedF2:-Threads are connected to each other A) F1 is true but F2 is false. B) F1 is false but F2 is true. C) Both are true. D) Both are false. Show Answer Correct Answer: C) Both are true. 31. It allocates the Kernel's processing time to various processes. A) Scheduler. B) Supervisor. C) Interrupt handler. D) Memory manager. Show Answer Correct Answer: A) Scheduler. 32. The part of the operating system which looks after keyboards, mice, printers, etc. A) File Management. B) Memory Management. C) Peripheral Management. D) User Management. Show Answer Correct Answer: C) Peripheral Management. 33. Which architecture organizes the system into hierarchical layers? A) Event Based Architecture. B) Layered Architecture. C) Data Centred Architecture. D) Object Based Architecture. Show Answer Correct Answer: B) Layered Architecture. 34. If you don't know where a document or folder is located, you can use ..... to find it. A) Task Bar. B) Help & Support. C) Search. D) Control Panel. Show Answer Correct Answer: C) Search. 35. What is the most popular desktop operating system in the world according to netmarketshare.com? A) Catalina macOS. B) Linux Ubuntu. C) Windows operating system. D) Android. Show Answer Correct Answer: C) Windows operating system. 36. It manages the overall functions of a computer. A) Desktop. B) Operating System. C) Icon. D) None of the above. Show Answer Correct Answer: B) Operating System. 37. POST is short for A) Power On Self Test. B) Power Off Self Test. C) Program Off Self Test. D) Program On Self test. Show Answer Correct Answer: A) Power On Self Test. 38. An Operating system help us to ..... with computer even without knowing computer Language. A) Translate. B) Trade. C) Communicate. D) None of these. Show Answer Correct Answer: C) Communicate. 39. A role of the operating system that runs processes or programs automatically in the background. These programs are services that perform functions like indexing files for better searches, verifying that software is up to date, and backing up files. A) Windows Update. B) Device Management. C) Windows Settings App. D) Service Management. Show Answer Correct Answer: D) Service Management. 40. -rwxrwxrw-1 user /home/user/bimtek/cli4.txtubislah group from cli4.txt file to a bimteksi group A) CHMOD:Bimteksi /Home/User/Bimtek/Cli4.TXT. B) Chown:Bimteksi /Home/User/Cli4.TXT. C) Chown:Bimteksi /Home/user/bimtek/cli4.txt. D) Chown User:Bimteksi /Home/bimtek/Cli4.txt. Show Answer Correct Answer: C) Chown:Bimteksi /Home/user/bimtek/cli4.txt. 41. The portion of the process scheduler in an operating system that dispatches processes is concerned with ..... A) Assigning ready processes to CPU. B) Assigning ready processes to waiting queue. C) Assigning running processes to blocked queue. D) All of the mentioned. Show Answer Correct Answer: A) Assigning ready processes to CPU. 42. What is the full form of TIFF? A) Tagged Image File Format. B) Tagged Image File Front. C) The Image Fax Format. D) The Image File Format. Show Answer Correct Answer: A) Tagged Image File Format. 43. A list of options that appears below a menu item when selected A) Folder. B) Icon. C) Drop-down menu. D) Desktop. Show Answer Correct Answer: C) Drop-down menu. 44. The first screen which is displayed after boot process is called ..... screen. A) Logon. B) Lock. C) All the above. D) None of the above. Show Answer Correct Answer: A) Logon. 45. THE SIMULTANEOUSLY PROCESSING OF TWO OR MORE PROGRAMS BY MULTIPLE PROCESSORS, IS? A) MULTI-PROGRAMMING. B) MULTI-TASKING. C) MULTI-PROCESSING. D) NONE OF THE ABOVE. E) ALL OF THE ABOVE. Show Answer Correct Answer: C) MULTI-PROCESSING. 46. To copy the item instead of moving it, press and hold down CTRL while dragging. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 47. Which option helps to hide the labels and pile up the icons of same programs? A) Always combine, hide labels. B) Combine when taskbar is full. C) Never combine. D) None of the above. Show Answer Correct Answer: A) Always combine, hide labels. 48. Which of the following is not a generation of operating systems? A) Virtual generation. B) First generation. C) Fifth generation. D) Third generation. Show Answer Correct Answer: A) Virtual generation. 49. The grouping of jobs that require similar resources A) Multiprogramming. B) Serial processing. C) Timesharing. D) Batch processing. Show Answer Correct Answer: D) Batch processing. 50. Which of the following is true about a monolithic kernel? A) It has a single large code base that handles all services. B) It has a modular design. C) It is more fault-tolerant. D) It supports virtual machines. Show Answer Correct Answer: A) It has a single large code base that handles all services. 51. Which of this is a disadvantage of NOS? A) Server provides the best protection. B) Easy hardware's configuration. C) Dedicated file server has better stability. D) It totally depends upon the center server for all types of operations such as storage and accessing data. Show Answer Correct Answer: D) It totally depends upon the center server for all types of operations such as storage and accessing data. 52. What is the Bell-LaPadula Model? A) A security model that ensures confidentiality by restricting users from accessing higher security levels. B) A model that focuses on data integrity. C) A model that allows free access to all data. D) A model that is used for user authentication. Show Answer Correct Answer: A) A security model that ensures confidentiality by restricting users from accessing higher security levels. 53. Which of the following option helps to reduce the size of the taskbar icons? A) Lock the taskbar. B) Use small icons. C) Auto hide the taskbar. D) None of the above. Show Answer Correct Answer: B) Use small icons. 54. Word processing, spreadsheet, database, and presentation graphics are examples of: A) Computer hardware. B) Device driver. C) Application software. D) Operating system. Show Answer Correct Answer: C) Application software. 55. We have to ..... the window before moving it. A) Minimize. B) Close. C) Un-maximize/ Restore. D) None of the above. Show Answer Correct Answer: C) Un-maximize/ Restore. 56. RAM is what kind of memory? A) Forever. B) Temporary. C) Slow. D) Stational. Show Answer Correct Answer: B) Temporary. 57. Which of this is NOT a hardware requirement of NOS? A) Server. B) Local network devices. C) Personal computers. D) Protocol Suite. Show Answer Correct Answer: D) Protocol Suite. 58. In an operating system, each process has its own? A) Address space and global variables. B) Open files. C) Pending alarms, signals and signal handlers. D) All of the mentioned. Show Answer Correct Answer: A) Address space and global variables. 59. Worldwide, publicly accessed network A) Supercomputer. B) Internet. C) Aparnet. D) Firewall. Show Answer Correct Answer: B) Internet. 60. What are the characteristics of a good operating system? A) Efficiency, security, customization, user-friendly interface. B) Speed, privacy, customization, user-friendly interface. C) Reliability, speed, compatibility, regular updates. D) Stability, security, efficiency, compatibility, user-friendly interface, regular updates. Show Answer Correct Answer: D) Stability, security, efficiency, compatibility, user-friendly interface, regular updates. ← 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