Computer Software Operations

In Excel, the keyboard shortcut SHIFT + F11 inserts a new worksheet into the current workbook. This creates a blank sheet at the end of the existing sheets. The shortcut CTRL + N creates an entirely new workbook file, not a worksheet.

Alt + Enter is the standard keyboard shortcut in Windows Explorer to open the Properties dialog for the selected folder or file. This shows detailed information including attributes, size, creation date, and more.

Alt + Spacebar is a Windows keyboard shortcut that opens the window control menu (system menu) for the active window. This menu contains options like Restore, Move, Size, Minimize, Maximize, and Close.

Holding the Shift key during Windows boot (specifically after the BIOS screen but before Windows logo) will trigger Safe Mode or the Advanced Boot Options menu. Safe Mode loads Windows with minimal drivers and services for troubleshooting.

Alt + Print Screen captures only the active window (the window currently in focus) to the clipboard, not the entire screen. The regular Print Screen key captures the entire desktop. Shift + Print Screen has no standard function in Windows.

Ctrl + Esc is the keyboard shortcut that opens the Windows Start menu. This is equivalent to clicking the Start button or pressing the Windows key. Alt + Esc cycles through windows in reverse order, and Ctrl + Tab switches between applications within some interfaces.

Pressing the Ctrl key along with the numeric keypad's + key in Windows Explorer's Details view automatically resizes all columns to fit their longest content. Other combinations like Ctrl + F2 or Alt + + do not perform this action, making them incorrect distractors.

Cursor variables (REF CURSOR types) in Oracle PL/SQL have 4 attributes: %ISOPEN, %FOUND, %NOTFOUND, and %ROWCOUNT. These attributes provide information about the cursor's state. The statement claims there are 4 attributes, which is correct for cursor variables (though note: implicit cursors have additional attributes like %BULK_ROWCOUNT and %BULK_EXCEPTIONS, but for cursor variables specifically, there are 4 main attributes).

Pressing Win + D first minimizes all open windows, showing the desktop; pressing it again restores the windows to their previous state. Thus both “Minimises all windows” and “Unminimises all windows” describe its behavior, while the other options do not.

Win+M minimizes all open application windows to the taskbar while leaving dialog boxes (modal windows) open and visible. This is distinct from Win+D which shows the desktop by minimizing everything including dialogs. Option A incorrectly states it minimizes dialogs too. Option B incorrectly says it only minimizes dialogs.

Typing exit is a standard command to terminate a shell session and log out of a terminal in Unix/Linux. Ctrl-Alt-Del typically reboots the system, switching off the terminal is improper, and Ctrl-u merely clears the current command line.

CTRL+F6 switches to the next workbook window when multiple Excel workbooks are open. This is the standard keyboard shortcut in Excel for cycling through open workbook windows.

CTRL+SHIFT+F6 switches to the previous workbook window when multiple Excel workbooks are open. The SHIFT modifier reverses the direction, going to the previous window instead of the next.