Quiz about Certification Exam, RedHat, EX294: Red Hat Certified Engineer (RHCE) exam for Red Hat Enterprise Linux 8

Question 1

Install and configure ansible
User bob has been created on your control node. Give him the appropriate permissions on the control
node. Install the necessary packages to run ansible on the control node.
Create a configuration file /home/bob/ansible/ansible.cfg to meet the following requirements:
• The roles path should include /home/bob/ansible/roles, as well as any other path that may be required
for the course of the sample exam.
• The inventory file path is /home/bob/ansible/inventory.
• Ansible should be able to manage 10 hosts at a single time.
• Ansible should connect to all managed nodes using the bob user.
Create an inventory file for the following five nodes:
nodel.example.com
node2.example.com
node3.example.com
node4.example.com
node5.example.com
Configure these nodes to be in an inventory file where node1 is a member of group dev. nodc2 is a
member of group test, nodc3 is a member of group proxy, nodc4 and node 5 are members of group
prod. Also, prod is a member of group webservers.

Accepted Answer

See the step-by-step Solution below in the Explanation.

Question 2

Create a file called adhoc.sh in /home/sandy/ansible which will use adhoc commands to set up a new
repository. The name of the repo will be 'EPEL' the description 'RHEL8' the baseurl is
'[https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rmp'](https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rmp') there is no gpgcheck, but you
should enable the repo.
* You should be able to use an bash script using adhoc commands to enable repos. Depending on your
lab setup, you may need to make this repo "state=absent" after you pass this task.

Accepted Answer

See the step-by-step Solution below in the Explanation.

Question 3

Create a file called packages.yml in /home/sandy/ansible to install some packages for the following
hosts. On dev, prod and webservers install packages httpd, mod_ssl, and mariadb. On dev only install
the development tools package. Also, on dev host update all the packages to the latest.

Accepted Answer

See the step-by-step Solution below in the Explanation.

Question 4

Create a role called sample-apache in /home/sandy/ansible/roles that enables and starts httpd, enables
and starts the firewall and allows the webserver service. Create a template called index.html.j2 which
creates and serves a message from /var/www/html/index.html Whenever the content of the file changes,
restart the webserver service.
Welcome to [FQDN] on [IP]
Replace the FQDN with the fully qualified domain name and IP with the ip address of the node using
ansible facts. Lastly, create a playbook in /home/sandy/ansible/ called apache.yml and use the role to
serve the index file on webserver hosts.

Accepted Answer

See the step-by-step Solution below in the Explanation.

Question 5

Create a file called requirements.yml in /home/sandy/ansible/roles to install two roles. The source for the
first role is geerlingguy.haproxy and geerlingguy.php. Name the first haproxy-role and the second php-
role. The roles should be installed in /home/sandy/ansible/roles.

Accepted Answer

See the step-by-step Solution below in the Explanation.

Question 6

Create a file called requirements.yml in /home/sandy/ansible/roles a file called role.yml in
/home/sandy/ansible/. The haproxy-role should be used on the proxy host. And when you curl
[http://node3.example.com](http://node3.example.com) it should display "Welcome to node4.example.com" and when you curl again
"Welcome to node5.example.com" The php-role should be used on the prod host.

Accepted Answer

See the step-by-step Solution below in the Explanation.

Question 7

Create an ansible vault password file called lock.yml with the password reallysafepw in the
/home/sandy/ansible directory. In the lock.yml file define two variables. One is pw_dev and the password
is 'dev' and the other is pw_mgr and the password is 'mgr' Create a regular file called secret.txt which
contains the password for lock.yml.

Accepted Answer

See the step-by-step Solution below in the Explanation.

Question 8

Create the users in the file usersjist.yml file provided. Do this in a playbook called users.yml located at
/home/sandy/ansible. The passwords for these users should be set using the lock.yml file from TASK7.
When running the playbook, the lock.yml file should be unlocked with secret.txt file from TASK 7.
All users with the job of 'developer' should be created on the dev hosts, add them to the group devops,
their password should be set using the pw_dev variable. Likewise create users with the job of 'manager'
on the proxy host and add the users to the group 'managers', their password should be set using the

pw_mgr variable.

$\"Certification$

Accepted Answer

See the step-by-step Solution below in the Explanation.

Question 9

Create a file called specs.empty in home/bob/ansible on the local machine as follows:
HOST=
MEMORY=
BIOS=
VDA_DISK_SIZE=
VDB_DISK_SIZE=
Create the playbook /home/bob/ansible/specs.yml which copies specs.empty to all remote nodes' path
/root/specs.txt. Using the specs.yml playbook then edit specs.txt on the remote machines to reflect the
appropriate ansible facts.

Accepted Answer

See the step-by-step Solution below in the Explanation.

Question 10

Create a jinja template in /home/sandy/ansible/ and name it hosts.j2. Edit this file so it looks like the one
below. The order of the nodes doesn't matter. Then create a playbook in /home/sandy/ansible called
hosts.yml and install the template on dev node at /root/myhosts
$\"Certification$

Accepted Answer

See the step-by-step Solution below in the Explanation.

Quiz EX294: Red Hat Certified Engineer (RHCE) exam for Red Hat Enterprise Linux 8

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