This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Computer Science > Operating System > Class 7 Computer Science Chapter 2 Operating System – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Computer Science Chapter 2 Operating System Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A user process gets access to kernel through: A) Interface. B) System Calls. C) Kernel. D) IPC. Show Answer Correct Answer: B) System Calls. 2. What controls a computer's basic operations? A) Motherboard. B) Software System. C) RAM. D) Operating System. Show Answer Correct Answer: D) Operating System. 3. A process is a ..... A) High level program. B) Low level program. C) Program on the hard drive. D) Program in execution. Show Answer Correct Answer: D) Program in execution. 4. What is accessibility? A) Changing how a system looks. B) Changing the brightness of the computer. C) Allowing as many people to access computers and technology. D) Changing the graphics and monitor to handle your screen. Show Answer Correct Answer: C) Allowing as many people to access computers and technology. 5. When was the first operating system developed? A) 1950. B) 1951. C) 1948. D) 1949. Show Answer Correct Answer: A) 1950. 6. Show desktop button is present at the rightmost corner of the taskbar. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. The memory returned by a call to malloc comes from the ..... A) Heap segment. B) Data segment. C) Text segment. D) Stack segment. Show Answer Correct Answer: A) Heap segment. 8. An interface which called a WIMP interface:Windows, Icons, Menus, Pointer A) GUI. B) CLI. C) All the above. D) None of the above. Show Answer Correct Answer: A) GUI. 9. Which of the following is a characteristic of a Microkernel? A) Limited Functionality. B) High Complexity. C) Less Code in Kernel Mode. D) Monolithic Structure. Show Answer Correct Answer: C) Less Code in Kernel Mode. 10. What is the role of a device driver in an operating system? A) To manage the execution of tasks. B) To handle external interrupts. C) To translate high-level programming languages into machine code. D) To provide an interface for hardware peripherals. Show Answer Correct Answer: D) To provide an interface for hardware peripherals. 11. What is a mutex? A) Is a binary mutex. B) Must be accessed from only one process. C) Can be accessed from multiple processes. D) None of the mentioned. Show Answer Correct Answer: B) Must be accessed from only one process. 12. Which of these devices can have an SINGLE USER operating system? A) Smartphone. B) Basic mobile phone. C) Personal computer. D) Laptop. Show Answer Correct Answer: B) Basic mobile phone. 13. When a context switch occurs, the kernel saves the context of the ..... A) Old process. B) New Process. C) Completed Process. D) None of the above. Show Answer Correct Answer: A) Old process. 14. Which scheduling algorithm provides the highest average turnaround time? A) Round Robin (RR). B) First-Come-First-Served (FCFS). C) Priority Scheduling. D) Shortest Job Next (SJN). Show Answer Correct Answer: B) First-Come-First-Served (FCFS). 15. These are example of Server OS Except for A) Microsoft Windows 10. B) OpenSolaris. C) Linux. D) Solaris. Show Answer Correct Answer: A) Microsoft Windows 10. 16. Fill the space, wait(S){while (S<=0); ..... } A) S;. B) S++;. C) S ;. D) S . Show Answer Correct Answer: C) S ;. 17. What language do operating systems use? A) English. B) Operators language. C) Binary Code. D) None of the above. Show Answer Correct Answer: C) Binary Code. 18. Which program brings them together? A) Internet Browser. B) Microsoft Office. C) Binary. D) The operating system. Show Answer Correct Answer: D) The operating system. 19. What is the primary function of an operating system? A) Optimizing system performance and enhancing device security. B) Managing computer hardware and software resources. C) Providing common services for computer programs. D) Developing application programs. Show Answer Correct Answer: B) Managing computer hardware and software resources. 20. What is the year of the First Generation of computer? A) 1971-Present. B) 1940-1956. C) 1956-1963. D) 1963-1971. Show Answer Correct Answer: B) 1940-1956. 21. What is the main purpose of a process control block (PCB)? A) To manage memory allocation. B) To store process state information. C) To handle I/O operations. D) To schedule processes. Show Answer Correct Answer: B) To store process state information. 22. The operating system is the program that lets you ..... with your computer. A) Communicate. B) Hide. C) R. D) Store. Show Answer Correct Answer: A) Communicate. 23. The ..... option arranges all the open windows from the top left corner of the screen to the bottom right in layers. A) Cascading windows. B) Multiple windows. C) Layered windows. D) None of the above. Show Answer Correct Answer: A) Cascading windows. 24. How do you change background pictures? A) Use the keyboard shortcut Ctrl + Alt + B to change the background. B) Open the control panel and choose the 'display' so that the background can be modified. C) Click on the taskbar and choose 'Settings' to change the picture. D) Right-click on the desktop, choose 'Personalize', then choose 'background' to change the picture. Show Answer Correct Answer: D) Right-click on the desktop, choose 'Personalize', then choose 'background' to change the picture. 25. Programs that perform specific tasks A) Output device Input device. B) Computer hardware. C) Operating system. D) Application software. Show Answer Correct Answer: D) Application software. 26. Which Operating System function enables access levels to be given? A) Peripheral Management. B) User Management. C) File Management. D) User Interface. Show Answer Correct Answer: B) User Management. 27. Computers can only understand the 0s and 1s. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 28. During an RPC call, the server successfully processes the request, but the response never reaches the client due to a network failure. How should the RPC system handle this situation? A) The client should assume the operation was successful. B) The server should re-send the response automatically. C) The RPC system should use an acknowledgment mechanism to confirm message delivery. D) The client should re-send the request blindly. Show Answer Correct Answer: C) The RPC system should use an acknowledgment mechanism to confirm message delivery. 29. What is the name of this operating system? A) Windows. B) Linux. C) MacOS. D) Android. Show Answer Correct Answer: B) Linux. 30. The operating system helps to manage files A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 31. MS Excel is a number processor included in the software ..... A) Utility device. B) Application System. C) Programming language. D) Assembler. E) Operating System. Show Answer Correct Answer: B) Application System. 32. A type of NOS wherein the network is controlled centrally A) Client-Server. B) Peer to Peer. C) Network Operating System. D) Operating System. Show Answer Correct Answer: A) Client-Server. 33. These are example of Mobile OS Except for A) IOS. B) Symbian OS. C) Linux OS. D) Android OS. Show Answer Correct Answer: C) Linux OS. 34. Which of the following is not an example of an OS for smartphone? A) IOS. B) Microsoft Windows. C) Android. D) None of the above. Show Answer Correct Answer: B) Microsoft Windows. 35. Which is the main operating system A) Mac. B) Windows. C) Ubuntu. D) None of the above. Show Answer Correct Answer: B) Windows. 36. Which key is required to open the commmand prompt in windows A) Windows V. B) Windows E. C) Windows R. D) Windows c. Show Answer Correct Answer: C) Windows R. 37. What is the function of a context switch in an operating system? A) To allocate memory to processes. B) To save the state of a currently running process. C) To terminate a process. D) To schedule a new process for execution. Show Answer Correct Answer: B) To save the state of a currently running process. 38. What is the primary purpose of an operating system? A) Enabling network connectivity. B) Managing hardware resources. C) Providing a graphical user interface. D) Running applications. Show Answer Correct Answer: B) Managing hardware resources. 39. Which company is responsible for the Android operating system? A) Samsung. B) Google. C) Windows. D) Apple. Show Answer Correct Answer: B) Google. 40. A layer of a computer system to translate or bridge between hardware and user and as a display giver on a computer is A) Bios. B) Operating system. C) Monitor. D) Firmware. Show Answer Correct Answer: B) Operating system. 41. In a operating system, the purpose of the stack is ..... A) To store the return addresses of called functions. B) To keep the parameters of called functions. C) To store local variables. D) All of the above. Show Answer Correct Answer: D) All of the above. 42. Which of the printer is used in conjunction with computers uses dry ink powder? A) Line Printer. B) Laser printer. C) Daisy Wheel Printer. D) Dot Matrix Printer. Show Answer Correct Answer: B) Laser printer. 43. SHORTCUT TO MINIMIZE ALL THE WINDOWS OPEN ON YOUR DESKTOP A) WIN KEY+M. B) SHIFT+M. C) SHIFT+K. D) WIN+K. Show Answer Correct Answer: A) WIN KEY+M. 44. Which key is used to close the active window? A) Ctrl + F5. B) ALT + F7. C) Ctrl + F4. D) ALT + F4. Show Answer Correct Answer: D) ALT + F4. 45. For moving the window, place the mouse pointer over the ..... A) Launcer. B) Window. C) Titlebar. D) None of the above. Show Answer Correct Answer: C) Titlebar. 46. ..... is open-source software used for building robot applications. A) C. OSR. B) B. RES. C) D. OCR. D) The.Rose. Show Answer Correct Answer: D) The.Rose. 47. If the computer crashes, you can press the ..... button. A) Restart. B) Repeat. C) Replay. D) None of the above. Show Answer Correct Answer: A) Restart. 48. How do you change the name of a folder? A) Right-click on the folder and choose 'Change'. B) Remove the folder and create a new folder. C) Open the folder and change it. D) Drag the folder to a new place. Show Answer Correct Answer: A) Right-click on the folder and choose 'Change'. 49. What are some disadvantages of operating systems? A) Being difficult to use and requiring heavy maintenance. B) Being user-friendly and cost-effective. C) Enhancing device security and optimizing system performance. D) Providing virtualization capabilities and networking features. Show Answer Correct Answer: A) Being difficult to use and requiring heavy maintenance. 50. Which of the following is the largest unit of storage? A) MB. B) TB. C) GB. D) KB. Show Answer Correct Answer: B) TB. 51. The ..... is a security app by Microsoft which is a built-in Windows OS that is designed to filter network data from your Windows system & block harmful communications or the programs which are initiating them. A) Windows Security Essentials. B) Windows Firewall. C) Windows Apply Blocker. D) Windows 10. Show Answer Correct Answer: A) Windows Security Essentials. 52. Which of the following is not a resource managed by the OS? A) Graphics Processor. B) Data. C) Cache. D) CPU. Show Answer Correct Answer: B) Data. 53. It is the process to turn off the computer completely. A) Restart. B) Shutdown. C) Sleep. D) None of the above. Show Answer Correct Answer: B) Shutdown. 54. Allows more than one user to access the operating system at the same time. A) Multi-user OS. B) Single-user OS. C) All the above. D) None of the above. Show Answer Correct Answer: A) Multi-user OS. 55. All the programs that run on the computer are called A) Hardware. B) Software. C) All the above. D) None of the above. Show Answer Correct Answer: B) Software. 56. The Kernel Mode is concerned with everything running in the background. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 57. All of the following are operating system categories EXCEPT: A) Virtual. B) Single user, Single task. C) Realtime. D) Single user, multitask. Show Answer Correct Answer: A) Virtual. 58. Which of the following is a benefit of a Command Line Interface? A) Recognises slang words. B) Looks pretty. C) Does not need a powerful computer. D) Easy for inexperienced users to learn. Show Answer Correct Answer: C) Does not need a powerful computer. 59. What are the key components of a general-purpose computer system? A) Memory, CPU, and I/O devices. B) Hardware, system programs, and application programs. C) Network interfaces and storage devices. D) Peripheral devices and software applications. Show Answer Correct Answer: B) Hardware, system programs, and application programs. 60. This user interface is user friendly; anyone can use it. A) GUI. B) CLI. C) All the above. D) None of the above. Show Answer Correct Answer: A) GUI. ← PreviousNext →Related QuizzesComputer Science QuizzesClass 7 QuizzesClass 7 Computer Science Chapter 2 Operating System Quiz 1Class 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books