Question

The command chmod 4777 will set the suid bit of ________?

1) only if the command is issued by root
2) is not a valid command

Answer 1

The chmod 4777 command sets the SUID bit on a file, allowing users to execute the file with the file owner's permissions, not limited to root or invalid.

Step-by-step explanation:

The command chmod 4777 sets the SUID (Set User ID) bit on a file or directory, but to answer the question directly, it is not inherently limited to use by the root user nor is it an invalid command. The command changes the permissions of a file, and when the SUID bit is set, it allows users to execute the file with the permissions of the file owner. So if the file's owner is the root, any user who executes the file will have the file's execution privileges temporarily elevated to the root level. It's important to use the SUID bit cautiously as it can introduce security risks if applied to the wrong files.