Which statement is true about Linux permission bits Read, Write, and Execute?

Which statement is true about Linux permission bits Read, Write, and Execute?

• A. Read allows viewing contents; Write allows modification; Execute allows running a program or traversing a directory.
• B. Read allows running; Write allows deleting; Execute allows viewing
• C. Read allows listing; Write allows creating; Execute allows executing
• D. Read allows writing; Write allows executing; Execute allows reading

Answer: (A)

Understanding Linux permission bits means knowing what each action actually allows you to do with a file or directory. Read, Write, and Execute map to viewing, modifying, and running or traversing. For a regular file, Read lets you view the contents, Write lets you modify them, and Execute lets you run the file as a program if it’s executable. For a directory, Read lets you list the entries, Write lets you create, delete, or rename entries, and Execute lets you traverse into the directory or access files inside by name. The statement that combines these ideas—Read allows viewing contents, Write allows modification, and Execute allows running a program or traversing a directory—matches how permissions control both file access and directory traversal, making it the correct description. The other options mix up these roles or apply them inconsistently to files versus directories.

Understanding Linux permission bits means knowing what each action actually allows you to do with a file or directory. Read, Write, and Execute map to viewing, modifying, and running or traversing. For a regular file, Read lets you view the contents, Write lets you modify them, and Execute lets you run the file as a program if it’s executable. For a directory, Read lets you list the entries, Write lets you create, delete, or rename entries, and Execute lets you traverse into the directory or access files inside by name. The statement that combines these ideas—Read allows viewing contents, Write allows modification, and Execute allows running a program or traversing a directory—matches how permissions control both file access and directory traversal, making it the correct description. The other options mix up these roles or apply them inconsistently to files versus directories.