Red Hat EX447 Online Practice Questions and Exam Preparation

Red Hat EX447 Online Questions & Answers

• Question 11:

  CORRECT TEXT

  Install and configure ansible

  User sandy has been created on your control node with the appropriate permissions already, do not change or modify ssh keys. Install the necessary packages to run ansible on the control node. Configure ansible.cfg to be in folder /home/ sandy/ansible/ansible.cfg and configure to access remote machines via the sandy user. All roles should be in the path /home/sandy/ansible/roles. The inventory path should be in /home/sandy/ansible/invenlory.

  You will have access to 5 nodes. node1.example.com

  node2.example.com

  node3.example.com

  node4.example.com

  node5.example.com

  Configure these nodes to be in an inventory file where node I is a member of group dev. nodc2 is a member of group test, node3 is a member of group proxy, nodc4 and node 5 are members of group prod. Also, prod is a member of group webservers.

  A. See the for complete Solution below.
  A. See the for complete Solution below.

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  In/home/sandy/ansible/ansible.cfg [defaults] inventory=/home/sandy/ansible/inventory roles_path=/home/sandy/ansible/roles remote_user= sandy host_key_checking=false [privilegeescalation] become=true become_user=root become_method=sudo become_ask_pass=false

  In /home/sandy/ansible/inventory [dev] node1 .example.com [test] node2.example.com [proxy] node3 .example.com [prod] node4.example.com node5 .example.com [webservers:children] prod

• Question 12:

  CORRECT TEXT

  Create a playbook called regulartasks.yml which has the system that append the date to /root/datefile every day at noon. Name is job 'datejob'

  A. See the for complete Solution below.
  A. See the for complete Solution below.

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  Solution as:

  

• Question 13:

  CORRECT TEXT

  Create the users in the fileusersjist.ymlfile provided. Do this in a playbook called users.yml located at/home/sandy/ansible.The passwords for these users should be set using thelock.ymlfile from TASK7. When running the playbook, the lock.yml file should be unlocked withsecret.txtfile from TASK 7.

  All users with the job of 'developer' should be created on thedevhosts, add them to the group devops, their password should be set using thepw_devvariable. Likewise create users with the job of 'manager' on theproxyhost and add the users to the group 'managers', their password should be set using thepw_mgrvariable.

  

  A. See the for complete Solution below.
  A. See the for complete Solution below.

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  ansible-playbook users.yml vault-password-file=secret.txt

  

• Question 14:

  CORRECT TEXT

  Using the Simulation Program, perform the following tasks:

  Static Inventories Task:

  1.

  Add a new group to your default ansible host file. call the group [ec2]

  2.

  Add a newhost to the new group you created.

  3.

  Add a variable to a new host entry in the /etc/ansible/hosts file. Add the following. localhost http_port=80 maxRequestsPerChild=808

  4.

  Check to see if maxRequestsPerChild is pulled out with an ad-hoccommand.

  5.

  Create a local host file and put a target group and then a host into it. Then ping it with an ad-hoc command.

  A. See the for complete Solution below.
  A. See the for complete Solution below.

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  1.

  Edit the /etc/ansible/hosts file. Add a group.

  2.

  Edit the /etc/ansible/hosts file. Add a user under the group you created.

  3.

  Edit the /etc/ansible/hosts file. Find a host. if we add a variable called maxRequestsPerChild to the host it would look like this. host1 maxRequestsPerChild=808

  4.

  ansible ec2 -m shell -a "echo {{ maxRequestsPerChild }}"

  5.

  Edit a local file. It could be called anything. Lets call it myhosts. Inside the file it would have a host like the following. [mygroup] myusername1.mylabserver.com

• Question 15:

  CORRECT TEXT

  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 theappropriate ansible facts.

  A. See the for complete Solution below.
  A. See the for complete Solution below.

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  Solution as:

  

  

• Question 16:

  CORRECT TEXT

  Create a file calledrequirements.ymlin/home/sandy/ansible/rolesa file calledrole.yml in /home/sandy/ansible/.Thehaproxy-roleshould be used on theproxyhost. And when you curlhttp://node3.example.comit should display "Welcome tonode4.example.com" and when you curl again "Welcome tonode5.example.com" Thephp-roleshould be used on theprod host.

  A. See the for complete Solution below.
  A. See the for complete Solution below.

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  Solution as:

  

  Check the proxy host by curlhttp://node3.example.com

• Question 17:

  CORRECT TEXT

  Create an empty encrypted file calledmyvault.yml in /home/sandy/ansibleand set the passwordtonotsafepw. Rekey the passwordtoiwejfj2221.

  A. See the for complete Solution below.
  A. See the for complete Solution below.

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  ansible-vault create myvault.yml Create new password: notsafepw Confirm password: notsafepwansible-vault rekey myvault.yml Current password: notsafepw New password: iwejfj2221 Confirm password: iwejfj2221

• Question 18:

  CORRECT TEXT

  Create a role called sample-apache in/home/sandy/ansible/rolesthat enables and starts httpd, enables and starts the firewall and allows the webserver service. Create a template calledindex.html.j2which 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.ymland use the role to serve the index file on webserver hosts.

  A. See the for complete Solution below.
  A. See the for complete Solution below.

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  /home/sandy/ansible/apache.yml

  

  /home/sandy/ansible/roles/sample-apache/tasks/main.yml

  

  /home/sandy/ansible/roles/sample-apache/templates/index.html.j2

  

  In /home/sandy/ansible/roles/sample-apache/handlers/main.yml

  

• Question 19:

  CORRECT TEXT

  Create a role called sample-apache and store it in /home/bob/ansible/roles. The role should

  satisfy the following requirements:

  In the role, install and enable httpd. Also enable the firewall to allow http. Also run the template

  index.html.j2 and make sure this runs Create a template index.html.j2that displays "Welcome to the server HOSTNAME"

  In a play called apache.yml in /home/bob/ansible/ run the sample-apache role.

  A. See the for complete Solution below.
  A. See the for complete Solution below.

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  /home/sandy/ansible/apache.yml

  

  /home/sandy/ansible/roles/sample-apache/tasks/main.yml

  

  /home/sandy/ansible/roles/sample-apache/templates/index.html.j2

  

  In /home/sandy/ansible/roles/sample-apache/handlers/main.yml

  

• Question 20:

  CORRECT TEXT Create an ansible vault password file calledlock.ymlwith the passwordreallysafepwin the /home/sandy/ansibledirectory. In the lock.yml file define two variables. One ispw_devand the password is 'dev' and the other ispw_mgrand the password is 'mgr' Create a regular file calledsecret.txtwhich contains the password for lock.yml.

  A. See the for complete Solution below.
  A. See the for complete Solution below.

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  ansible-vault create lock.yml New Vault Password: reallysafepw Confirm: reallysafepw