Online Access Free EX200 Exam Questions

See the solution below in Explanation.
Explanation:
Solution:
* Set the hostname:
hostnamectl set-hostname server1.example.com
* Configure the existing connection with a static IP:
nmcli connection modify ens160 ipv4.address 192.168.1.2/24 ipv4.gateway 192.168.1.1 ipv4.dns 1.1.1.1 ipv4.
method manual connection.autoconnect yes
* Bring the connection up:
nmcli connection up ens160
Detailed Explanation:
* hostnamectl is the correct modern command for changing the system hostname.
* nmcli is the correct tool for RHEL 10 network configuration because the old ifcfg style is removed in
RHEL 10, and NetworkManager keyfiles are the supported model.
* ipv4.method manual tells NetworkManager to use static addressing.
* connection.autoconnect yes ensures the profile activates automatically after reboot.
* nmcli connection up ens160 applies the changes immediately.

See the solution below in Explanation.
Explanation:
Solution:
Create the script:
mkdir -p /usr/local/bin
cat > /usr/local/bin/backup-now.sh < < 'EOF'
#!/bin/bash
tar -czf /root/etc-$(date +%F).tar.gz /etc
EOF
chmod +x /usr/local/bin/backup-now.sh
Create the unit file:
cat > /etc/systemd/system/backup-now.service < < 'EOF'
[Unit]
Description=Run manual etc backup
[Service]
Type=oneshot
ExecStart=/usr/local/bin/backup-now.sh
[Install]
WantedBy=multi-user.target
EOF
Reload and test:
systemctl daemon-reload
systemctl start backup-now.service
systemctl status backup-now.service
Detailed Explanation:
* Type=oneshot is correct for a task that runs and exits.
* ExecStart points to the script.
* systemctl daemon-reload is required after adding a new unit file.
* RHEL 10 systemd documentation covers manual unit creation and management. ( Red Hat
Documentation )

Solution:
[root@node1 ~]# visudo
...
%wheel ALL=(ALL) NOPASSWD: ALL
%sysmgrs ALL=(ALL) NOPASSWD: ALL
# Verification (mandatory operation)
[root@node1 ~]# su - natasha
[natasha@node1 ~]# sudo cat /etc/shadow

Solution:
# Connect to servera via console for IP modification, then check using the ip addr command.
# After confirming no issues, SSH to servera for hostname modification. This way, you can copy the hostname to avoid typos.
[root@clear ~] nmcli con show
[root@clear ~] nmcli con mod 'network configuration name' ipv4.method manual ipv4.addresses 172.25.0.25/24 ipv4.gateway 172.25.0.254 ipv4.dns 172.25.0.254
autoconnect yes
[root@clear ~] nmcli con up 'network configuration name'
[root@clear ~] ip a
[root@clear ~] ssh [email protected]
[root@clear ~] hostnamectl set-hostname red.lab0.example.com
# Verification
[root@node1 ~] ip a //Check if the IP is correct
[root@node1 ~] hostname //Check if the hostname is correct

Solution:
***Restart the node2 machine and wait for the screen shown in Exhibit 1.

Press "e" to enter the screen shown in Exhibit 2.

The original configuration is as shown in the image. Modify the original configuration to the part highlighted in red box, as shown in Exhibit 2. Then press "Ctrl+X" to
execute the following commands:
# chroot /sysroot
# echo redhat |passwd --stdin root
# touch /.autorelabel
# sync
# exit
# reboot