This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Computer Science Chapter 2 Operating System – Quiz 32 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 32 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is called the starting up on operating system? A) Formatting. B) Booting. C) Starting. D) Entering. Show Answer Correct Answer: B) Booting. 2. A file extension of doc. means that the file can be opened by what program? A) Microsoft Access. B) Microsoft Powerpoint. C) Microsoft Word. D) Microsoft Excel. Show Answer Correct Answer: C) Microsoft Word. 3. What is Discretionary Access Control (DAC)? A) Allows resource owners to define access. B) Enforces strict access rules defined by the OS. C) Grants access based on user roles. D) Uses dynamic attributes to grant access. Show Answer Correct Answer: A) Allows resource owners to define access. 4. The taskbar is used tor A) Navigation program. B) Switching between program. C) Start a program. D) All of these. Show Answer Correct Answer: D) All of these. 5. An operating system is the software that controls all the hardware. It acts as an ..... between the user and the hardware and also between applications and the hardware. A) Application. B) Operator. C) Hardware. D) Interface. Show Answer Correct Answer: D) Interface. 6. ..... is a long horizontal bar present at the bottom of the desktop. A) Task box. B) Taskbar. C) Task. D) None of the above. Show Answer Correct Answer: B) Taskbar. 7. Function application software is ..... A) Help the user run specific tasks like word processors, web browser, email, clients, games, etc. B) Run tasks like the operating systems, utilities, etc. C) Help the user run things down. D) Run tasks like the doing my homework, revision, etc. Show Answer Correct Answer: A) Help the user run specific tasks like word processors, web browser, email, clients, games, etc. 8. During your systems boot process what is the first thing that happens. A) The BIOS boots the computer using the first drive that contains a valid boot sector. B) POST occurs. C) WINLOGIN.EXE displays the windows welcome screen. D) The code in the "Boot Sector" is executed. Show Answer Correct Answer: B) POST occurs. 9. Complex scheduling algorithms ..... A) Are very appropriate for very large computers. B) Use minimal resources. C) Use many resources. D) All of the mentioned. Show Answer Correct Answer: A) Are very appropriate for very large computers. 10. Which of the following is false related to Deadlock prevention? A) Violating Mutual exclusion condition. B) Violating non preemption. C) Violating hold and weight. D) Violating circular weight. Show Answer Correct Answer: A) Violating Mutual exclusion condition. 11. Where is the Action Center? A) Windows Vista. B) Windows 7. C) Windows 8. D) Windows 10. Show Answer Correct Answer: D) Windows 10. 12. Which of the following tasks is/are the responsibility/responsibilities of the memory management unit (MMU) in a system with paging-based memory management? A) All of the above. B) Translate a virtual address to a physical address using the page table. C) Raise a trap when a virtual address is not found in the page table. D) Raise a trap when a process tries to write to a page marked with read-only permission in the page table. Show Answer Correct Answer: A) All of the above. 13. What is the term for the time interval required to process and respond to inputs in a Real-Time OS? A) Response Time. B) Execution Time. C) Turnaround Time. D) Processing Time. Show Answer Correct Answer: A) Response Time. 14. Which is task of an operating system among follow tasks A) Manages files and folders. B) Handles input and output. C) Manages system security. D) All of these. Show Answer Correct Answer: D) All of these. 15. Types of operating systems whose source code is open to the public so that it can be developed individually A) Open Source. B) Closed Source. C) Open OS. D) Closed OS. Show Answer Correct Answer: A) Open Source. 16. What does an operating system manage and control on a computer or mobile device? A) The weather. B) Hardware and software. C) Television shows. D) Recipe books. Show Answer Correct Answer: B) Hardware and software. 17. Running multiple programs at the same time is called A) Multitasking. B) Foreground tasking. C) Single tasking. D) Symmetric. Show Answer Correct Answer: A) Multitasking. 18. You should choose the Sleep option when A) The computer is tired after working for the whole day. B) You are leaving for a very short time and want to resume your work shortly. C) When the computer gets hanged frequently. Let it sleep for some time. D) You finish wanting and going to bed. Show Answer Correct Answer: B) You are leaving for a very short time and want to resume your work shortly. 19. The replaced block in RAM need to be written back to swap space. This is called: A) Swap in. B) Swap out. C) Demand paging. D) All of these. Show Answer Correct Answer: B) Swap out. 20. Windows 7 is more attractive with a complete set of new pictures, themes and icons A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 21. ..... is a interface between user and computer A) Operating System. B) Software. C) Hardware. D) None of above. Show Answer Correct Answer: A) Operating System. 22. ..... is the core that controls all other programs> A) Device Driver. B) System Utilities. C) Kernel. D) User Interface. Show Answer Correct Answer: C) Kernel. 23. This piece of software is used to control hardware devices and allow an Operating System to make use of the hardware (7-9) A) Device Management. B) Device Driver. C) Device System. D) Hardware Peripheral Device. Show Answer Correct Answer: B) Device Driver. 24. In the non blocking send ..... A) The sending process keeps sending until the message is received. B) The sending process sends the message and resumes operation. C) The sending process keeps sending until it receives a message. D) None of the mentioned. Show Answer Correct Answer: B) The sending process sends the message and resumes operation. 25. Race-Conditions can be overcome by: A) System calls. B) Synchronization between applications. C) Interface. D) IPC. Show Answer Correct Answer: B) Synchronization between applications. ← 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