This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Computer Science Chapter 2 Operating System – Quiz 55 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 55 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. What type of memory stores data in a swap file on a hard drive? A) Secondary memory. B) Virtual memory. C) Low memory. D) RAM. Show Answer Correct Answer: B) Virtual memory. 3. A message sent by the OS to change the CPU schedule is known as ..... A) Interrupt. B) Poll. C) Cache. D) Dispatch. Show Answer Correct Answer: A) Interrupt. 4. Which of the following is not a type of directory structure? A) Acyclic-graph directory structure. B) Single-level directory structure. C) Tree directory structure. D) Stack directory structure. Show Answer Correct Answer: D) Stack directory structure. 5. 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. 6. 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. 7. What does the acronym mean for NTFS? A) New Technique File System. B) New Technology File System. C) New Terminology File System. D) New Trademark File System. Show Answer Correct Answer: B) New Technology File System. 8. Which is a gateway device between networks? A) Intranet. B) Router. C) WAN. D) Peer-to-Peer. Show Answer Correct Answer: B) Router. 9. 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. 10. 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. 11. Time sharing system uses A) Short term scheduler. B) Mid term scheduler. C) Long term scheduler. D) Processscheduler. Show Answer Correct Answer: B) Mid term scheduler. 12. Are standalone bits of software that run programs on top of a device's operating system. A) Apps. B) Operating System. C) BIOS. D) GUI. Show Answer Correct Answer: A) Apps. 13. 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. 14. 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. 15. Choose the Apple operating system A) Windows. B) Android. C) Linux. D) MAC OS X. Show Answer Correct Answer: D) MAC OS X. 16. In the Bootstrap Process, which is first? A) POST. B) Load BIOS. C) Charge of electricity to system. D) LOAD OS. Show Answer Correct Answer: C) Charge of electricity to system. 17. What is complete form CMOS? A) Content Metal Oxide Semiconductor. B) Complementary Metal Oxide Semiconductor. C) Complementary Metal Oxygen Semiconductor. D) Complementary Metal Oscillator Semiconductor. Show Answer Correct Answer: B) Complementary Metal Oxide Semiconductor. 18. 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. 19. 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. 20. An emulator of a particular computer system. A) BIOS. B) Devices Drivers. C) Virtual Machine. D) Intermediate Code. Show Answer Correct Answer: C) Virtual Machine. 21. 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. 22. The operating system that uses the Character Interface (CUI) interface is ..... A) OF THE. B) Windows. C) Linux. D) Unix. Show Answer Correct Answer: A) OF THE. 23. 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. 24. 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. 25. 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. ← PreviousNext →Related 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 8Class 7 Computer Science Chapter 2 Operating System Quiz 9Class 7 Computer Science Chapter 2 Operating System Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books