フリー問題

問題文

A chroot jail has been prepared on Oracle Linux 8 and the jail is entered without a command being named. What does the documentation say runs in that case, and which commands work once the shell is there?

選択肢

1. The login shell that the account carries in the account database runs, whatever the environment holds, and the commands built into the shell work while others need their files copied in
2. The value of the shell variable of the environment runs, or a fixed shell if that variable is unset, and the commands that are built into the shell work while the others need their files copied in from the host
3. The value of the shell variable of the environment runs, or a fixed shell if that variable is unset, and the commands on the host work as the jail keeps reading the real root directory
4. The login shell that the account carries in the account database runs, whatever the environment holds, and the commands on the host work as the jail keeps reading the real root directory