CORRECT TEXT
Who ever creates the files/directories on /archive group owner should be automatically should be
the same group owner of /archive.

Answer:

Explanation:
1. chmod g+s /archive
2. Verify using: ls -ld /archive
Permission should be like:
drwxrws— 2 root sysuser 4096 Mar 16 18:08 /archive
If SGID bit is set on directory then who every users creates the files on directory group owner
automatically the owner of parent directory.

To set the SGID bit: chmod g+s directory
To Remove the SGID bit: chmod g-s directory