Red Hat EX200 Online Practice Questions and Exam Preparation

Red Hat EX200 Online Questions & Answers

• Question 91:

  Create one partitions having size 100MB and mount it on data.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  1.

  Use fdisk /dev/hda to create new partition.

  2.

  Type n For New partitions.

  3.

  It will ask for Logical or Primary Partitions. Press l for logical.

  4.

  It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.

  5.

  Type the Size: +100M you can specify either Last cylinder of size here.

  6.

  Press P to verify the partitions lists and remember the partitions name.

  7.

  Press w to write on partitions table.

  8.

  Either Reboot or use partprobe command.

  9.

  Use mkfs -t ext3 /dev/hda? OR mke2fs -j /dev/hda? To create ext3 filesystem. vi /etc/fstab Write: /dev/hda? /data ext3 defaults 1 2 Verify by mounting on current Sessions also: mount /dev/hda? /data

• Question 92:

  Part 1 (on Node1 Server)

  Task 17 [Accessing Linux File Systems]

  Find all the files owned by user "alex" and redirect the output to /home/alex/files.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  * root@node1 ~]# find / -user alex -type f > /home/alex/files

• Question 93:

  Create a user alex with a userid of 3400. The password for this user should be redhat.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  1.

  useradd -u 3400 alex

  2.

  passwd alex

  3.

  su -alex

• Question 94:

  Update the kernel from ftp://instructor.example.com/pub/updates. According the following requirements:

  1.

  The updated kernel must exist as default kernel after rebooting the system.

  2.

  The original kernel still exists and is available in the system.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  rpm -ivh kernel-firm… rpm -ivh kernel...

• Question 95:

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

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  chmod g+s /archive 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

• Question 96:

  Create the following users, groups, and group memberships:

  A group named adminuser.

  A user natasha who belongs to adminuser as a secondary group A user harry who also belongs to adminuser as a secondary group.

  A user sarah who does not have access to an interactive shell on the system, and who is not a member of adminuser, natasha, harry, and sarah should all have the password of redhat.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  1.

  groupadd sysmgrs

  2.

  useradd -G sysmgrs Natasha

  3.

  We can verify the newly created user by cat /etc/passwd) # useradd -G sysmgrs harry # useradd -s /sbin/nologin sarrh # passwd Natasha # passwd harry # passwd sarrah

• Question 97:

  Part 1 (on Node1 Server)

  Task 16 [Running Containers]

  Configure your host journal to store all journal across reboot

  Copy all journal files from /var/log/journal/ and put them in the /home/shangrila/container- logserver

  Create and mount /home/shangrila/container-logserver as a persistent storage to the container as /var/log/ when container start

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  * [shangrila@node1 ~]$ podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d5ffe018a53c registry.domain15.example.com:5000/rhel8/rsyslog:latest /bin/rsyslog.sh 5 seconds ago Up 4 seconds ago logserver [shangrila@node1 ~]$ podman stats logserver Error: stats is not supported in rootless mode without cgroups v2 [shangrila@node1 ~]$ podman stop logserver d5ffe018a53ca7eb075bf560d1f30822ab6fe51eba58fd1a8f370eda79806496 [shangrila@node1 ~]$ podman rm logserver Error: no container with name or ID logserver found: no such container [shangrila@node1 ~]$ mkdir -p container-journal/

  * [shangrila@node1 ~]$ sudo systemctl restart systemd-journald [sudo] password for shangrila: [shangrila@node1 ~]$ sudo cp -av /var/log/journal/* container-journal/ [shangrila@node1 ~]$ sudo cp -av /var/log/journal/* container-journal/ [shangrila@node1 ~]$ sudo chown -R shangrila container-journal/ [shangrila@node1 ~]$ podman run -d --name logserver -v /home/shangrila/container- journal/:/var/log/journal:Z registry.domain15.example.com:5000/rhel8/rsyslog [shangrila@node1 ~]$ podman ps [shangrila@node1 ~]$ loginctl enable-linger [shangrila@node1 ~]$ loginctl show-user shangrila|grep -i linger Linger=yes

  * [shangrila@node1 ~]$ podman stop logserver [shangrila@node1 ~]$ podman rm logserver [shangrila@node1 ~]$ systemctl --user daemon-reload [shangrila@node1 ~]$ systemctl --user enable --now container-logserver [shangrila@node1 ~]$ podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 3903e1d09170 registry.domain15.example.com:5000/rhel8/rsyslog:latest /bin/rsyslog.sh 4 seconds ago Up 4 seconds ago logserver [shangrila@node1 ~]$ systemctl --user stop container-logserver.service

  * [shangrila@node1 ~]$ sudo reboot [shangrila@node1 ~]$ podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 7e6cd59c506a registry.domain15.example.com:5000/rhel8/rsyslog:latest /bin/rsyslog.sh 10 seconds ago Up 9 seconds ago logserver

• Question 98:

  Part 2 (on Node2 Server)

  Task 2 [Installing and Updating Software Packages]

  Configure your system to use this location as a default repository:

  http://utility.domain15.example.com/BaseOS

  http://utility.domain15.example.com/AppStream

  Also configure your GPG key to use this location

  http://utility.domain15.example.com/RPM-GPG-KEY-redhat-release

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  [root@node1 ~]# vim /etc/yum.repos.d/redhat.repo [BaseOS] name=BaseOS baseurl=http://utility.domain15.example.com/BaseOS enabled=1 gpgcheck=1 gpgkey=http://utility.domain15.example.com/RPM-GPG-KEY-redhat-release [AppStream] name=AppStream baseurl=http://utility.domain15.example.com/AppStream enabled=1 gpgcheck=1 gpgkey=http://utility.domain15.example.com/RPM-GPG-KEY-redhat-release [root@node1 ~]# yum clean all [root@node1 ~]# yum repolist repo id repo name AppStream AppStream BaseOS BaseOS [root@node1 ~]# yum list all

• Question 99:

  Set cronjob for user natasha to do /bin/echo hiya at 14:23.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  # crontab -e -u natasha 23 14 * * * /bin/echo hiya wq!

• Question 100:

  Part 1 (on Node1 Server)

  Task 9 [Managing Files from the Command Line]

  Search the string nologin in the /etc/passwd file and save the output in /root/strings

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  * [root@node1 ~]# cat /etc/passwd | grep nologin > /root/strings [root@node1 ~]# cat /root/strings bin:x:1:1:bin:/bin:/sbin/nologin daemon:x:2:2:daemon:/sbin:/sbin/nologin adm:x:3:4:adm:/var/adm:/sbin/nologin lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin mail:x:8:12:mail:/var/spool/mail:/sbin/nologin