When 1 is added as a prefix to the permission set, it adds the sticky bit to the file permission.
Therefore, in order to accomplish the task, you will have to run the following command: chmod 1744 report
What is sticky bit?
The sticky bit is a part of a permission set applied to files or folders. The sticky bit prevents others from deleting files from a folder. When the sticky bit is set on a directory, only the owner or root can unlink (delete) or rename the files in that directory. Without the sticky bit, anyone who is able to write to the directory can delete or rename the files.
Answer option A is incorrect. This will set SGID to the file permission.
Answer option B is incorrect. This will set SUID to the file permission.
Answer option C is incorrect. Although this will add a sticky bit to the file permission, it will also set SGID and SUID to the file permission.
What are SUID and SGID?
Set user ID (SUID) and Set group ID (SGID) are used to set a file to run as something other than the standard. Normally, when a file is executed, it runs as the user who invokes it. Setting a file to SUID or SGID simply requires adding an extra digit to the permissions. Technically, if no digit is used, it assumes a leading 0.
