Computer File Systems

In Windows Explorer, a plus (+) sign indicates that a folder contains subfolders and can be expanded to show them. This is standard Windows UI convention.

Files are stored on secondary storage devices like hard disks or SSDs, not in RAM. RAM is volatile memory used for temporary data while the computer is running - it loses all contents when power is turned off. Files must persist on non-volatile storage to be retained between sessions. Organizing files in folders (A, D) and generating them from applications (B) are true statements about file management.

The ATTRIB command in MS-DOS/Windows is used to display or change file attributes like Read-only, Archive, System, and Hidden. TYPE displays file contents, CHMOD is a Unix command for changing permissions, and SYSTYPE is not a standard MS-DOS command.

The FIND command in MS-DOS/Windows searches for a specific text string within a file or files. LOOKUP, STRFIND, and SEARCH are not standard MS-DOS commands for this purpose. FIND can also search multiple files and display matching lines.

fc (file compare) is the Windows command that compares two files and displays their differences line by line. Options A, B, and D are not standard Windows commands. While 'diff' exists in Unix, Windows uses fc. The name fc is short for 'file compare'.

The ASSOC command displays or modifies file extension associations (like .txt=notepad). Used alone, it shows all current file extension associations. Options A, C, and D (filetype, ext, display /ext) are not valid Windows commands.

In Oracle, BFILE is a datatype that stores a pointer/locator to a binary file stored on the operating system's disk (outside the database). BLOB and CLOB store the actual data within the database, while NCLOB stores Unicode character data internally.

Process chains in SAP BW can automate the entire loading process of flat files, including executing InfoPackages and Data Transfer Processes.

Microsoft Outlook 2003 and 2007 both had a default maximum PST file size of 20 GB. Earlier versions (Outlook 97-2002) had a 2 GB limit. The 20 GB limit was a significant increase in capacity.

The vi editor is a text editor used for creating, modifying, and viewing text files. While you can execute shell commands from vi to delete files, the editor's primary purposes are creation, editing, and viewing - not file deletion.

The statement is false - vi CAN open multiple files at once using 'vi file1 file2 file3' and provides commands to navigate between them like ':n' (next), ':prev' or ':N' (previous), and ':args' to list all open files. The claim that you cannot traverse between files is incorrect.

The :x command in vi saves changes and exits the file in one step. Option :w only saves (write) without exiting, :q quits only if no changes were made, and :q! quits discarding changes. For a save-and-exit operation, :x or :wq are the correct choices.

Guardian error 12 represents 'File is in Use' - meaning the requested file is locked by another process. This is a file access conflict error, not a file-not-found or file-full error. The file exists but cannot be accessed due to an existing lock.