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What are the core Objectives of the RedHat EX294 Certification Exam?

In addition to being a Red Hat Certified Engineer, an RHCE has proven that he/she has mastered the following core objectives:

  • Manage numerous systems using the Red Hat Ansible Automation Platform.
  • Define a Red Hat Enterprise Linux system architecture.
  • Execute common system administration tasks across many systems with Ansible. EX294 exam dumps will help you to master all the above-described objectives.

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Free PDF 2023 RedHat EX294 –Professional Study Materials Review

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RedHat Red Hat Certified Engineer (RHCE) exam for Red Hat Enterprise Linux 8 Exam Sample Questions (Q11-Q16):

NEW QUESTION # 11
In /home/sandy/ansible/ create a playbook called logvol.yml. In the play create a logical volume called Iv0 and make it of size 1500MiB on volume group vgO If there is not enough space in the volume group print a message "Not enough space for logical volume" and then make a 800MiB Iv0 instead. If the volume group still doesn't exist, create a message "Volume group doesn't exist" Create an xfs filesystem on all Iv0 logical volumes. Don't mount the logical volume. Answer: ** Explanation:
Solution as:

Topic 1, LAB SETUP
You will need to set up your lab by creating 5 managed nodes and one control node.
So 6 machines total. Download the free RHEL8 iso from Red Hat Developers website.
Control node you need to set up
You need to create some static ips on your managed nodes then on the control node set them up in the
/etc/hosts file as follows:
vim /etc/hosts
10.0.2.21 node1.example.com
10.0.2.22 node2.example.com
10.0.2.23 node3.example.com
10.0.2.24 node4.example.com
10.0.2.25 node5.example.com
yum -y install ansible
useradd ansible
echo password | passwd --stdin ansible
echo "ansible ALL=(ALL) NOPASSWD:ALL
su - ansible; ssh-keygen
ssh-copy-id node1.example.com
ssh-copy-id node2.example.com
ssh-copy-id node3.example.com
ssh-copy-id node4.example.com
ssh-copy-id node5.example.com
Each manage node setup
First, add an extra 2GB virtual harddisk to each control node 1,2,3. Then add an extra hard disk to control
node 4. Do not add an extra hard disk to node 5. When you start up these machines the extra disks should be
automatically located at /dev/sdb (or /dev/vdb depending on your hypervisor).
useradd ansible
echo password | passwd --stdin ansible
echo "ansible ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/ansible
Note python3 should be installed by default, however if it is not then on both the control node and managed
nodes you can install it also set the default python3 if you are having trouble with python2 being the default.
yum -y install python3
alternatives --set python /usr/bin/python3
All machines need the repos available. You did this in RHSCA. To set up locally you just need to do the same
for each machine. Attach the rhel8 iso as a disk to virtualbox, kvm or whatever hypervisor you are using (this
will be /dev/sr0). Then inside the machine:
mount /dev/sr0 to /mnt
Then you will have all the files from the iso in /mnt.
mkdir /repo
cp -r /mnt /repo
vim /etc/yum.repos.d/base.repo
Inside this file:
[baseos]
name=baseos
baseurl=file:///repo/BaseOS
gpgcheck=0
Also the appstream
vim /etc/yum.repos.d/appstream.repo
Inside this file:
[appstream]
name=appstream
baseurl=file:///repo/AppStream
gpgcheck=0
NEW QUESTION # 12**
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 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.

  • A. Solution as:

    Check the proxy host by curl http://node3.example.com
  • B. Solution as:

    Check the proxy host by curl http://node3.example.com

Answer: A
NEW QUESTION # 13
Create a playbook that changes the default target on all nodes to multi-user tarqet. Do this in playbook file called target.yml in /home/sandy/ansible Answer: ** Explanation:
- name: change default target
hosts: all
tasks:
- name: change target
file:
src: /usr/lib/systemd/system/multi-user.target dest: /etc/systemd/system/default.target state: link
NEW QUESTION # 14**
Use Ansible Galaxy with a requirements file called /home/admin/ansible/roles/
install.yml to download and install roles to /home/admin/ansible/roles from the
following URLs:
http:// classroom.example.com /role1.tar.gz The name of this role should be balancer
http:// classroom.example.com /role2.tar.gz The name of this role should be phphello Answer: ** Explanation:
Solution as:
# pwd
/home/admin/ansible/roles
# vim install.yml
---
- src: http://classroom.example.com/role1.tar.gz
name: balancer
- src: http://classroom.example.com/role2.tar.gz
name: phphello
:wq!
# pwd
/home/admin/ansible
# ansible-galaxy install -r roles/install.yml -p roles
NEW QUESTION # 15**
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.

  • A. In/home/sandy/ansible/ansible.cfg
    [defaults]
    inventory=/home/sandy/ansible/inventory
    rolespath=/home/sandy/ansible/roles
    remote    user= sandy
    hostkeychecking=false
    [privilegeescalation]
    become=true
    become_user=root
    In /home/sandy/ansible/inventory
    [dev]
    node 1 .example.com
    [test]
    node2.example.com
    [proxy]
    node3 .example.com
    [prod]
    node4.example.com
    node5 .example.com
    [webservers:children]
    prod
  • B. In/home/sandy/ansible/ansible.cfg
    [defaults]
    inventory=/home/sandy/ansible/inventory
    rolespath=/home/sandy/ansible/roles
    remote    user= sandy
    hostkeychecking=false
    [privilegeescalation]
    become=true
    becomeuser=root
    become    method=sudo
    becomeaskpass=false
    In /home/sandy/ansible/inventory
    [dev]
    node 1 .example.com
    [test]
    node2.example.com
    [proxy]
    node3 .example.com
    [prod]
    node4.example.com
    node5 .example.com
    [webservers:children]
    Prod

Answer: B
NEW QUESTION # 16
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