This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Computer Science Chapter 2 Operating System – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Multitasking:running more than 1 application at a time by giving each 1 a slice of CPU time A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. A virus scanner ..... A) Rearranges files on a disk. B) Detects and removes malware. C) Deletes files. D) Checks user names and passwords. Show Answer Correct Answer: B) Detects and removes malware. 3. New technology and hardware can be easily integrated into thesystem. A) ADVANTAGE. B) DISADVANTAGE. C) All the above. D) None of the above. Show Answer Correct Answer: A) ADVANTAGE. 4. The screen that you see when your computer has finished starting up is called the ..... A) Task Bar. B) Start up screen. C) Home. D) Desktop. Show Answer Correct Answer: D) Desktop. 5. S/W A) Soft work. B) Software. C) All the above. D) None of the above. Show Answer Correct Answer: B) Software. 6. You can swap over the functionality of the left and right mouse buttons A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. Here's the command found on Linux Ubuntu? A) Type. B) Dir. C) Copy conn. D) Mkdir. Show Answer Correct Answer: D) Mkdir. 8. Which of the following is the collection of stored settings that ensure your customizations are in effect whenever you log on? A) Your user profile. B) Your domain. C) Your lock screen. D) Your permission level. Show Answer Correct Answer: A) Your user profile. 9. THE TASKBAR IS AT THE ..... OF THE DESKTOP. A) LEFT. B) TOP. C) BOTTOM. D) RIGHT. Show Answer Correct Answer: C) BOTTOM. 10. A button at the left corner of the taskbar. A) Cortana. B) Start. C) Power. D) Task. Show Answer Correct Answer: B) Start. 11. What is the most widely used operating system? A) Blackberry. B) Linux. C) Windows. D) Ios. Show Answer Correct Answer: C) Windows. 12. The following are the basic commands on the Linux OS to delete a directory containing files. A) Rm. B) Rm-rf. C) Rmdir. D) Rm-ls. Show Answer Correct Answer: B) Rm-rf. 13. How many applications can be processed by the CPU at a time? A) 1. B) 2. C) 3. D) Several. Show Answer Correct Answer: A) 1. 14. The common name for the crime of stealing passwords is A) Jacking. B) Identity theft. C) Spoofing. D) Mocking. Show Answer Correct Answer: C) Spoofing. 15. How would we define a hierarchical file system as used by an operating system? A) As a tree structure with a root and branches or directories that lead to other files. B) Sorted in alphabetical order using an array of device names. C) Organised in date order according to when each file was created. D) Multiple folders in system. Show Answer Correct Answer: A) As a tree structure with a root and branches or directories that lead to other files. 16. A Distributed computing environment contains a single node? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 17. How many abstraction layers are there? A) 8. B) 100. C) 7. D) 5. Show Answer Correct Answer: C) 7. 18. Which mobile operating system feature helps you avoid accidentally placing a call or taking a picture? A) Virtual personal assistant. B) Pinch gesture. C) Dock. D) Lock screen. Show Answer Correct Answer: D) Lock screen. 19. Consider the reference string:1, 2, 3, 4, 1, 2, 5, 1, 2, 3, 4, 5.In a memory of size 3-page frames what is the number of page faults, if the pages are accessed in the order they appear in the reference string? A) 9. B) 10. C) 11. D) 8. Show Answer Correct Answer: A) 9. 20. Steve Jobs is the founder of Microsoft corporation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 21. What is the main purpose of memory management in an OS? A) Control User Access. B) Allocate Memory to Processes. C) Track CPU Usage. D) Manage Device Drivers. Show Answer Correct Answer: B) Allocate Memory to Processes. 22. Which of the following is a feature of a "real-time" operating system? A) It provides a GUI for users to interact with. B) It processes tasks immediately and guarantees timing constraints. C) It only supports one process at a time. D) It uses batch processing to handle tasks sequentially. Show Answer Correct Answer: B) It processes tasks immediately and guarantees timing constraints. 23. It is intended for a small office with limited number of user A) Desktop OS. B) Network OS. C) Server the. D) Desktop Computer. Show Answer Correct Answer: A) Desktop OS. 24. The image or picture that appears in the background of the desktop is called A) Desktop background. B) Desktop front. C) Desktop. D) None of the above. Show Answer Correct Answer: A) Desktop background. 25. To run a program, the computer must copy the program from secondary storage into? A) RAM. B) ROM. C) SSD. D) Way. Show Answer Correct Answer: A) RAM. ← 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