This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Operating System > Class 7 Computer Science Chapter 2 Operating System – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 22 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following does not support more than one program at a time? A) Unix. B) DOS. C) Windows. D) Linux. Show Answer Correct Answer: B) DOS. 2. Important principle, performed at many levels in a computer(in hardware, operating system) A) I/O System Management. B) Mass-Storage Management. C) File-System Management. D) Cache Management. Show Answer Correct Answer: D) Cache Management. 3. ..... is allows many users to share computer resources. A) Time Sharing OS. B) Batch OS. C) Real time. D) None. Show Answer Correct Answer: A) Time Sharing OS. 4. What kind of interface requires the user to type in commands from a keyboard to give the computer instructions? A) Command line interface. B) Command line interface. C) Menu driven interface. D) None of the above. Show Answer Correct Answer: A) Command line interface. 5. O.S Control/execute user/application programs A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 6. True or False:An operating system is responsible for managing computer hardware, such as the CPU and memory. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. When files or folders are deleted from Hard Disk windows place them in the A) Recycle bin. B) Recycle Bag. C) All the above. D) None of the above. Show Answer Correct Answer: A) Recycle bin. 8. WHAT IS THE FULL FORM OF BIOS A) BASIC INPUT/OUTPUT SYSTEM. B) BASIC IN /OUT SOFTEWARE. C) BASE INNER/OUTER SYSTEM. D) BASIC INTERNAL OPERATING SYSTEM. Show Answer Correct Answer: A) BASIC INPUT/OUTPUT SYSTEM. 9. The keyboard shortcut to paste is A) Ctrl + P. B) Ctrl + V. C) Shift + V. D) Shift + P. Show Answer Correct Answer: B) Ctrl + V. 10. What is a network operating system? A) Operating system used for gaming consoles. B) Software for managing personal finances. C) Program for editing photos and videos. D) Specialized operating system designed to support a network of computers and provide network services. Show Answer Correct Answer: D) Specialized operating system designed to support a network of computers and provide network services. 11. In a system with 32 bit virtual addresses and 1 KB page size, use of one-level page tables for virtual to physical address translation is not practical because of A) The large amount of internal fragmentation. B) The large amount of external fragmentation. C) The large computation overhead in the translation process. D) The large memory overhead in maintaining page tables. Show Answer Correct Answer: D) The large memory overhead in maintaining page tables. 12. Application software A) Is designed to help programmers. B) Performs specific task for computer. C) Is used to control the system. D) Is used for making design only. Show Answer Correct Answer: B) Performs specific task for computer. 13. Below that is not included in the application software, is ..... A) Windows 11. B) Office 365. C) Adobe Photoshop CC. D) Steam. Show Answer Correct Answer: A) Windows 11. 14. Which option of ls command used to view file inode number A) -o. B) -l. C) -a. D) -i. Show Answer Correct Answer: D) -i. 15. Windows Operating System is a popular software. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. The process of the operating system deciding what should be in RAM at any given time A) Memory Management. B) User Management. C) Peripheral Management. D) File Management. Show Answer Correct Answer: A) Memory Management. 17. Which of the following is a Multi-user multitasking operating system? A) Windows. B) Ubuntu. C) Linux. D) Android. Show Answer Correct Answer: C) Linux. 18. Which algorithm uses time quantum A) Shortest Job First (SJF) Scheduling. B) First-Come, First-Serve (FCFS) Scheduling. C) Round-Robin (RR) Scheduling. D) Priority Scheduling. Show Answer Correct Answer: C) Round-Robin (RR) Scheduling. 19. A network OS will provide user user names to identify users and and passwords to ..... A) Validate Users. B) Scan Users. C) Secure Users. D) Authenticate Users. Show Answer Correct Answer: D) Authenticate Users. 20. The need of isolation in OS is required because: A) Multiple applications, from different users, run concurrently. B) Malfunctioning application may affect other applications. C) Of both of these. D) Of None of these. Show Answer Correct Answer: C) Of both of these. 21. Ilham has a computer with a "Quadcore" processor, which means Ilham's computer has as many CPUs ..... A) 2. B) 4. C) 8. D) 6. Show Answer Correct Answer: B) 4. 22. De fragmentation is the process of taking A) Deleting old irrelevant files. B) Archiving fragmented files. C) Files which have been fragmented on a hard drive, and placing them back into a logical order. D) Clearing your RAM out. Show Answer Correct Answer: C) Files which have been fragmented on a hard drive, and placing them back into a logical order. 23. Which answer has all four main parts of the HDD? A) Actuator Shaft, Pringles, Platters, Actuator Arm. B) Actuator Shaft, Spindle, Platters, Cluster. C) Functional Shaft, Spindle, Platters, Functional Arm. D) Actuator Shaft, Spindle, Platters, Actuator Arm. Show Answer Correct Answer: D) Actuator Shaft, Spindle, Platters, Actuator Arm. 24. One of the benefits of System Software is can write programs without knowing how hardware works. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. An example of a potential deadlock situation is A) A single lane bridge. B) A one way train line. C) A two way bridge. D) A one way bridge. Show Answer Correct Answer: A) A single lane bridge. 26. Servers are able to be accessed remotely from differentlocations and types of systems. A) ADVANTAGE. B) DISADVANTAGE. C) All the above. D) None of the above. Show Answer Correct Answer: A) ADVANTAGE. 27. What is an example of short term memory? A) HDD. B) Google Drive. C) RAM. D) SSD. Show Answer Correct Answer: C) RAM. 28. ..... is two or more users have individual accounts that allow them to work with programs and peripheral devices at the same time. A) Multitasking. B) Multi-user. C) Multiprocessing. D) Multipurpose. Show Answer Correct Answer: B) Multi-user. 29. WHICH OF THE FOLLOWING IS/ARE FUNCTION OF OPERATING SYSTEM A) USER INTERFACE. B) FILE SYSTEM MANIPULATION. C) RESOURCE ALLOCATION. D) ALL OF THE ABOVE. Show Answer Correct Answer: D) ALL OF THE ABOVE. 30. Which component of an operating system is responsible for managing memory? A) Scheduler. B) Kernel. C) Compiler. D) Shell. Show Answer Correct Answer: B) Kernel. 31. The operating system dealing with requests / inputs / outputs A) User Management. B) Peripheral Management. C) Memory Management. D) File Management. Show Answer Correct Answer: B) Peripheral Management. 32. What is the role of a process in an operating system? A) To execute user commands. B) To manage system resources. C) To perform background tasks. D) To handle user input. Show Answer Correct Answer: B) To manage system resources. 33. What type of memory stores data in a swap file on a hard drive? A) Secondary memory. B) RAM. C) Virtual memory. D) Low memory. Show Answer Correct Answer: C) Virtual memory. 34. A message sent by the OS to change the CPU schedule is known as ..... A) Dispatch. B) Cache. C) Interrupt. D) Poll. Show Answer Correct Answer: C) Interrupt. 35. Which of the following is not a type of directory structure? A) Tree directory structure. B) Acyclic-graph directory structure. C) Stack directory structure. D) Single-level directory structure. Show Answer Correct Answer: C) Stack directory structure. 36. The reason for OS usage is: A) Hardware abstraction. B) Resource management. C) Both of these. D) None of these. Show Answer Correct Answer: C) Both of these. 37. What is the role of a job queue in an operating system? A) To hold processes that are currently executing. B) To store processes that are ready to run. C) To maintain processes that are waiting for I/O. D) To keep track of all processes in the system. Show Answer Correct Answer: D) To keep track of all processes in the system. 38. What does the acronym mean for NTFS? A) New Terminology File System. B) New Technique File System. C) New Technology File System. D) New Trademark File System. Show Answer Correct Answer: C) New Technology File System. 39. Which is a gateway device between networks? A) Intranet. B) Router. C) WAN. D) Peer-to-Peer. Show Answer Correct Answer: B) Router. 40. What is meant by Operating System ..... ? A) A interface between hardware & software that regulates & controls hardware resources. B) An interface between hardware and software that cannot control resources. C) Operating System is software or applications like Office. D) Software that works between brainware and software. Show Answer Correct Answer: A) A interface between hardware & software that regulates & controls hardware resources. 41. Which one is disadvantages of server? A) All files are stored in only one central location. B) Users can access shared data which is centrally controlled. C) Specialist staff such as a network manager is needed. D) None of the options. Show Answer Correct Answer: C) Specialist staff such as a network manager is needed. 42. Time sharing system uses A) Short term scheduler. B) Processscheduler. C) Mid term scheduler. D) Long term scheduler. Show Answer Correct Answer: C) Mid term scheduler. 43. Are standalone bits of software that run programs on top of a device's operating system. A) BIOS. B) Apps. C) GUI. D) Operating System. Show Answer Correct Answer: B) Apps. 44. Which of the following is a characteristic of a non-preemptive scheduling algorithm? A) Processes can be interrupted at any time. B) Once a process starts executing, it cannot be stopped until it finishes. C) It allows for better responsiveness. D) It is more complex to implement. Show Answer Correct Answer: B) Once a process starts executing, it cannot be stopped until it finishes. 45. In a layered OS structure, the main advantage is: A) Fastest execution. B) Least memory usage. C) Better modularity and ease of debugging. D) Simplified hardware. Show Answer Correct Answer: C) Better modularity and ease of debugging. 46. Choose the Apple operating system A) Windows. B) Android. C) Linux. D) MAC OS X. Show Answer Correct Answer: D) MAC OS X. 47. In the Bootstrap Process, which is first? A) POST. B) LOAD OS. C) Charge of electricity to system. D) Load BIOS. Show Answer Correct Answer: C) Charge of electricity to system. 48. What is complete form CMOS? A) Complementary Metal Oscillator Semiconductor. B) Content Metal Oxide Semiconductor. C) Complementary Metal Oxygen Semiconductor. D) Complementary Metal Oxide Semiconductor. Show Answer Correct Answer: D) Complementary Metal Oxide Semiconductor. 49. How can encryption be used as a security feature in an operating system? A) Encryption makes data public and easily accessible. B) Encryption slows down the operating system performance. C) Encryption increases the risk of data breaches. D) Encryption secures data by converting it into a coded format that can only be accessed with the correct decryption key. Show Answer Correct Answer: D) Encryption secures data by converting it into a coded format that can only be accessed with the correct decryption key. 50. Operating system cannot Detect and Correct errors A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 51. An emulator of a particular computer system. A) Virtual Machine. B) Devices Drivers. C) Intermediate Code. D) BIOS. Show Answer Correct Answer: A) Virtual Machine. 52. ISDN stands for? A) International Standard for. B) Integrated Service Dark Network. C) Integrated Service for Digital Network. D) Integrated Service Digital Network. Show Answer Correct Answer: D) Integrated Service Digital Network. 53. The operating system that uses the Character Interface (CUI) interface is ..... A) Unix. B) Linux. C) OF THE. D) Windows. Show Answer Correct Answer: C) OF THE. 54. What is the purpose of a page table? A) To handle disk scheduling. B) To manage CPU registers. C) To store process control blocks. D) To map logical addresses to physical addresses. Show Answer Correct Answer: D) To map logical addresses to physical addresses. 55. Which of the following statements are true? (GATE 2010)I. Shortest remaining time first scheduling may cause starvationII. Preemptive scheduling may cause starvationIII. Round robin is better than FCFS in terms of response time A) I only. B) I and III only. C) II and III only. D) I, II and III. Show Answer Correct Answer: D) I, II and III. 56. The ..... lets you search for the files stored in the computer. A) Search for. B) Search box. C) Search bar. D) None of the above. Show Answer Correct Answer: B) Search box. 57. What are the critical security functions of an OS? A) User Authentication, Process Isolation, System Monitoring and Logging, Access Control. B) Data Encryption, Firewall Management, Network Monitoring. C) User Interface Design, Application Development. D) Hardware Management, Software Installation. Show Answer Correct Answer: A) User Authentication, Process Isolation, System Monitoring and Logging, Access Control. 58. JPEG stands for Joint Photographic Experts Group. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 59. It is a multitasking operating system as it can run multiple tasks simultaneously without affecting the system speed. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 60. What are the key features of a network operating system? A) Cooking recipes. B) Weather forecasting. C) Ability to play video games. D) Some key features of a network operating system include file and resource sharing, user administration, security, and network management. Show Answer Correct Answer: D) Some key features of a network operating system include file and resource sharing, user administration, security, and network management. ← 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