RedHat Red Hat Certified System Administrator - RHCSA (EX200日本語版) - EX200日本語 Exam Practice Test

See the solution below in Explanation.
Explanation:
Solution:
dnf install -y autofs
mkdir -p /automount
echo "/automount /etc/auto.automount --timeout=30" > > /etc/auto.master
echo "public -ro,sync nfs.lab.example.com:/public" > > /etc/auto.automount
echo "private -rw,sync nfs.lab.example.com:/private" > > /etc/auto.automount
systemctl enable --now autofs
Detailed Explanation:
* /etc/auto.master defines the main AutoFS map.
* /etc/auto.automount defines the indirect map entries.
* public will mount read-only.
* private will mount read-write.
* AutoFS mounts on access rather than permanently at boot.

See the solution below in Explanation.
Explanation:
Solution:
dnf install -y stratisd stratis-cli
systemctl enable --now stratisd
stratis pool create pool1 /dev/sdc
stratis filesystem create pool1 fs1
stratis filesystem list
Detailed Explanation:
* stratisd is the daemon and stratis-cli provides the command-line interface.
* A Stratis pool is created from a block device.
* The Stratis file system is then created inside that pool.
* RHEL 10 documents Stratis as an available volume-managing file-system layer. ( Red Hat
Documentation )

Solution:
[root@node2 ~]# lsblk
[root@node2 ~]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.37.4).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
This disk is currently in use - repartitioning is probably a bad idea.
It's recommended to umount all file systems, and swapoff all swap
partitions on this disk.
Command (m for help): n
Partition number (3-128, default 3):
First sector (1476608-10485726, default 1476608):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (1476608-10485726, default 10485726): +512M
Created a new partition 3 of type 'Linux filesystem' and of size 512 MiB.
Command (m for help): w
The partition table has been altered.
Syncing disks.
[root@node2 ~]# mkswap /dev/vdb3
[root@node2 ~]# vim /etc/fstab
/dev/vdb3 swap swap defaults 0 0
[root@node2 ~]# swapon -a
[root@node2 ~]# swapon
NAME TYPE SIZE USED PRIO
/dev/vdb2 partition 243M 0B -2
/dev/vdb3 partition 512M 0B -3

See the solution below in Explanation.
Explanation:
Solution:
dnf install -y tuned
systemctl enable --now tuned
tuned-adm recommend
tuned-adm profile virtual-guest
tuned-adm active
Detailed Explanation:
* The lab text uses yum, but on RHEL 10 dnf is the preferred package manager command. RHEL 10
documentation focuses on DNF behavior and changes.
* tuned-adm recommend shows the best-fit tuning profile.
* tuned-adm profile virtual-guest activates the profile.
* tuned-adm active confirms it.

See the solution below in Explanation.
Explanation:
Solution:
* Create the swap partition:
fdisk /dev/sdb
partprobe /dev/sdb
* Format it for swap:
mkswap /dev/sdb2
* Enable it:
swapon /dev/sdb2
* Persist it in /etc/fstab:
echo "/dev/sdb2 swap swap defaults 0 0" > > /etc/fstab
* Verify:
swapon --show
Detailed Explanation:
* mkswap prepares the partition as swap space.
* swapon activates it immediately.
* Adding an /etc/fstab entry ensures it survives reboot.
* The lab uses a partition-based swap workflow.

See the solution below in Explanation.
Explanation:
Solution:
podman pull registry.access.redhat.com/ubi10/ubi
podman run -d --name webtest registry.access.redhat.com/ubi10/ubi sleep 3600
podman ps
Detailed Explanation:
* podman pull downloads the image.
* podman run -d starts the container in the background.
* Rootless Podman is a normal RHEL container workflow.
* RHEL 10 container documentation continues to center on Podman for image and container
management. ( Red Hat Documentation )

See the solution below in Explanation.
Explanation:
Solution:
systemctl set-default multi-user.target
systemctl get-default
Detailed Explanation:
* set-default changes the boot target persistently.
* get-default verifies the result.
* multi-user.target is the standard non-graphical multi-user boot target.