This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Computer Science Chapter 2 Operating System – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This piece of software is used to control hardware devices and allow an Operating System to make use of the hardware A) Device Management. B) Device Driver. C) Device System. D) Hardware Peripheral Device. Show Answer Correct Answer: B) Device Driver. 2. On which side of the Taskbar is Notification Area present? A) Right. B) Left. C) Bottom. D) Top. Show Answer Correct Answer: A) Right. 3. A computer uses ..... to hold files. A) Folder. B) Icons. C) Recycle bin. D) Applications. Show Answer Correct Answer: A) Folder. 4. The process of starting and restarting the Computer? A) Restart. B) Start. C) Booting. D) Activate. Show Answer Correct Answer: C) Booting. 5. I/O stands for A) In/ Out. B) Input/ Output. C) All the above. D) None of the above. Show Answer Correct Answer: B) Input/ Output. 6. Which of the following is the most recent version of Windows? A) Windows 8. B) Windows XP. C) Windows Vista. D) WIndows 11. Show Answer Correct Answer: D) WIndows 11. 7. Semaphores are used to solve A) Deadlock. B) Mutual exclusion. C) Inter-process Communication. D) Messaging. Show Answer Correct Answer: B) Mutual exclusion. 8. Which option is used to see the calender and digital clock.? A) Start menu. B) Time and Date. C) Taskbar. D) Start Icon. Show Answer Correct Answer: B) Time and Date. 9. ZIP means A) Compass file. B) Computer file. C) Compressed file. D) None of these. Show Answer Correct Answer: C) Compressed file. 10. ..... command is used to list contents of directories? A) Tar. B) Dir. C) Lp. D) Ls. Show Answer Correct Answer: D) Ls. 11. A type of operating system that allows only one user to work on it at a time. A) Single-user. B) Multi-user. C) Operating system. D) Desktop. Show Answer Correct Answer: A) Single-user. 12. In the index allocation scheme of blocks to a file, the maximum possible size of the file depends on A) The size of the blocks, and the size of the address of the blocks. B) The number of blocks used for the index, and the size of the blocks. C) The size of the blocks, the number of blocks used for the index, and the size of the address of the blocks. D) None. Show Answer Correct Answer: B) The number of blocks used for the index, and the size of the blocks. 13. 6) Which of the following algorithms is used to avoid deadlock? A) Dynamic Programming algorithm. B) Primality algorithms. C) Banker's algorithm. D) Deadlock algorithm. Show Answer Correct Answer: C) Banker's algorithm. 14. Which of these does not have an embedded system A) TV. B) They all have. C) Calculators. D) Traffic lights. Show Answer Correct Answer: B) They all have. 15. Requires regular maintenance and updates. A) ADVANTAGE. B) DISADVANTAGE. C) All the above. D) None of the above. Show Answer Correct Answer: B) DISADVANTAGE. 16. What is the purpose of RAID in mass storage systems? A) To increase data redundancy and performance. B) To reduce the cost of storage. C) To simplify file management. D) To enhance data encryption. Show Answer Correct Answer: A) To increase data redundancy and performance. 17. ..... appears on the bottom of the screen and by default remains visible when Windows is running. A) Task Bar. B) My Documents. C) Control Panel. D) Recycle Bin. Show Answer Correct Answer: A) Task Bar. 18. What is the use of directory structure in the operating system? A) The directory structure is used to solve the problem of the network connection in OS. B) It is used to store folders and files hierarchically. C) It is used to store the program in file format. D) None. Show Answer Correct Answer: B) It is used to store folders and files hierarchically. 19. Discuss some Security Features commonly found in operating systems. A) Biometric Authentication. B) User Authentication, Access Control Lists (ACLs), Encryption, Firewalls, Antivirus Software, Security Updates. C) Intrusion Detection Systems. D) Physical Security Measures. Show Answer Correct Answer: B) User Authentication, Access Control Lists (ACLs), Encryption, Firewalls, Antivirus Software, Security Updates. 20. Keep track of where a program is in the Fetch-Decode-Execute cycle is ..... A) Process Management. B) CPU Scheduling. C) Process Scheduling. D) CPU Management. Show Answer Correct Answer: A) Process Management. 21. OS stands for A) Open System. B) Operating System. C) On System. D) None of the above. Show Answer Correct Answer: B) Operating System. 22. True or False:We cannot retrieve files if they are deleted from the Recycle Bin A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. Below that does not include applications for browsing is A) Chrome. B) Mozilla. C) Internet Explorer. D) Microsoft Office. Show Answer Correct Answer: D) Microsoft Office. 24. Consider a system with byte-addressable memory, 32 bit logical addresses, 4 kilobyte page size and page table entries of 4 bytes each. The size of the page table in the system in megabytes is A) 2. B) 4. C) 8. D) 16. Show Answer Correct Answer: B) 4. 25. What is the most used operating system in the world? A) Linux. B) MacOS. C) Windows. D) Ubuntu. Show Answer Correct Answer: C) Windows. ← 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