MCQ on Operating a Computer System | NIELIT ACC

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Q61. What action does the ‘Ctrl + N’ key combination perform in most applications?
a) Opens a new document or window
b) Closes the current document
c) Opens the file menu
d) Saves the current document

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Correct Answer: a) Opens a new document or window
Explanation: The Ctrl + N key combination opens a new document or window in most applications, providing a blank canvas or a new instance of the program for starting fresh work.

Q62. What is the purpose of the ‘Taskbar’ in a graphical user interface?
a) To display and switch between open applications and provide quick access to system functions
b) To edit documents
c) To view file properties
d) To manage system settings

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Correct Answer: a) To display and switch between open applications and provide quick access to system functions
Explanation: The Taskbar shows open applications and provides shortcuts to frequently used programs and system functions. It helps users switch between tasks and access system features like the Start menu and system tray.

Q63. How do you access the ‘Help’ menu in most applications?
a) By clicking on the ‘Help’ option in the menu bar or pressing F1
b) By closing the application
c) By opening the file manager
d) By pressing Ctrl + P

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Correct Answer: a) By clicking on the ‘Help’ option in the menu bar or pressing F1
Explanation: The ‘Help’ menu can usually be accessed by clicking on the ‘Help’ option in the menu bar or by pressing the F1 key. It provides guidance and assistance for using the application or troubleshooting issues.

Q64. What is the function of the ‘Windows’ key on a keyboard?
a) Opens the Start menu or Start screen
b) Saves the current document
c) Opens the file explorer
d) Closes the current window

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Correct Answer: a) Opens the Start menu or Start screen
Explanation: The Windows key opens the Start menu or Start screen in Windows operating systems, providing access to applications, settings, and system functions.

Q65. What does the ‘Alt + Tab’ key combination do?
a) Switches between open applications or windows
b) Opens the task manager
c) Refreshes the current page
d) Opens the control panel

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Correct Answer: a) Switches between open applications or windows
Explanation: Alt + Tab allows users to switch between open applications or windows. Holding Alt and tapping Tab cycles through the currently running programs, making it easier to multitask.

Q66. How can you create a shortcut to a file or folder on your desktop?
a) By right-clicking the file or folder and selecting ‘Create shortcut’
b) By opening the file in a new window
c) By dragging and dropping the file to the Recycle Bin
d) By renaming the file

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Correct Answer: a) By right-clicking the file or folder and selecting ‘Create shortcut’
Explanation: To create a shortcut, right-click on the file or folder, select ‘Create shortcut,’ and place it on the desktop. This provides quick access to the item without navigating through folders.

Q67. What does ‘Ctrl + E’ do in most file managers?
a) Opens the search or address bar
b) Closes the file manager
c) Deletes the selected file
d) Copies the selected file

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Correct Answer: a) Opens the search or address bar
Explanation: The Ctrl + E key combination typically opens the search or address bar in file managers, allowing users to quickly search for files or enter a new path.

Q68. What is the purpose of the ‘Recycling Bin’ in Windows?
a) To temporarily store deleted files and folders until they are permanently removed
b) To manage system settings
c) To install new software
d) To open the task manager

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Correct Answer: a) To temporarily store deleted files and folders until they are permanently removed
Explanation: The Recycling Bin temporarily holds deleted files and folders. Users can recover items from the Recycling Bin before they are permanently deleted, providing a safeguard against accidental data loss.

Q69. How do you rename a file or folder in a file manager?
a) By right-clicking the file or folder and selecting ‘Rename’
b) By pressing Ctrl + P
c) By dragging the file or folder to a new location
d) By opening the file or folder

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Correct Answer: a) By right-clicking the file or folder and selecting ‘Rename’
Explanation: To rename a file or folder, right-click on it and select ‘Rename’ from the context menu. This allows users to change the name of the item while keeping its file type and location unchanged.

Q70. What does ‘Ctrl + W’ do in most applications?
a) Closes the current window or tab
b) Opens a new window
c) Saves the current document
d) Refreshes the page

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Correct Answer: a) Closes the current window or tab
Explanation: The Ctrl + W key combination closes the current window or tab in most applications, such as web browsers or document editors. It helps manage open windows and tabs efficiently.

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