RHCSA RHCSA Linux Essentials 2

Question 1

Which command displays the current SELinux enforcement mode?

Accepted Answer

getenforce

Answer

selinuxmode

Answer

sestatus --mode

Answer

ls -Z /etc/selinux

Question 2

What does the `umask 027` setting mean for newly created files?

Accepted Answer

Files get permissions 640

Answer

Files get permissions 027

Answer

Files get permissions 750

Answer

Files get permissions 777

Question 3

Which systemd target is equivalent to the traditional SysV runlevel 3?

Accepted Answer

multi-user.target

Answer

graphical.target

Answer

rescue.target

Answer

network.target

Question 4

A user needs to edit /etc/sudoers safely. Which command should they use?

Accepted Answer

visudo

Answer

vi /etc/sudoers

Answer

nano /etc/sudoers

Answer

sudo edit /etc/sudoers

Question 5

Which command permanently sets the hostname to 'server1.example.com'?

Accepted Answer

hostnamectl set-hostname server1.example.com

Answer

hostname server1.example.com

Answer

echo server1.example.com > /etc/hostname && reboot

Answer

nmcli general hostname server1.example.com

Question 6

What is the effect of running `chmod g+s /shared/dir`?

Accepted Answer

Files in the dir inherit the group of the directory

Answer

Files in the dir inherit the owner's UID

Answer

The directory is only accessible by the group

Answer

The sticky bit is set on the directory

Question 7

Which file contains the default shell for the root user?

Accepted Answer

/etc/passwd

Answer

/etc/shells

Answer

/etc/profile

Answer

/etc/shadow