Red Hat Red Hat Certifications EX407 Questions & Answers

• Question 51:

  Why is it important to create a namespace for role variables?

  A. Roles only have access to variables in their own namespace.

  B. It is not really important.

  C. Ansible requires namespaces to be set for a role and will error without them.

  D. Namespacing role variables helps avoid conflicts with variables defined outside of the role.

  Correct Answer: D

  Because roles share variables and because plays can have variables defined outside of the role, namespacing role variables ensures that you are getting the variable you expect to get.

• Question 52:

  How is a role name set?

  A. The role name is defined by the directory containing the role.

  B. Ansible loads a role name using the role keyword in the roles tasks/main.yml file.

  C. Ansible loads a role name from the roles meta/main.yml file.

  D. All role names are defined in the file /etc/ansible/roles.

  Correct Answer: A

• Question 53:

  Where is the first place Ansible checks for a role definition?

  A. ${PWD}/roles

  B. Ansible must always be told where to look for a role.

  C. ${PWD}/.roles

  D. /etc/ansible/roles

  Correct Answer: A

  Ansible always checks the present working directory for a roles directory containing a referenced role definition.

• Question 54:

  Which keywords will cause a role to be applied in a playbook? (Choose all that apply.)

  A. use_role

  B. include_role

  C. load_role

  D. role

  Correct Answer: BD

  The import_role keyword dynamically includes a role within a play. The role keyword statically includes a role within a play.

• Question 55:

  Which of the following are shared between roles on the same system? (Choose all that apply.)

  A. Templates

  B. Tasks

  C. Variables

  D. Handlers

  Correct Answer: CD

  Variables are shared across roles on the same system. This is why namespacing is important. Handlers are shared across roles on the same system.

• Question 56:

  Which are of the following are valid uses of a role's meta directory? (Choose all that apply.)

  A. Setting variable values for use within a role.

  B. Setting the allow_duplicates flag.

  C. A role's dependency information.

  D. Setting the become flag.

  Correct Answer: BC

  This is a unique flag that is set in the meta directory to allow a role to be repeated within a play. Role dependencies may be defined within the meta directory of a role.

• Question 57:

  Is there a syntax error in the following excerpt? If so, what is it?

  vars: package: httpd tasks:

  -

  name: Deploy {{ package }}

  yum:

  name:

  {{ package }}

  state: present

  A.

  No, there are no syntax errors in the provided excerpt.

  B.

  Yes, the variable package is not defined correctly.

  C.

  Yes, the name parameter for the yum module should have a quoted value.

  D.

  Yes, the name keyword (below tasks) should have a quoted value.

  Correct Answer: C

  Whenever a variable leads a value, it must be quoted to avoid parse errors.

• Question 58:

  What is wrong with the following command: ansible all -a "mkdir/tmp/testfile"

  A. There is not a module specified.

  B. There is not an inventory file specified.

  C. The command will execute without error.

  D. The -b flag is required.

  Correct Answer: C

  This command will execute using the command module by default.

• Question 59:

  What character is used to denote use of a jinja filter on an Ansible variable?

  A. The period: "."

  B. The pipe: "|"

  C. The percent sign: "%"

  D. The at symbol: "@"

  Correct Answer: B

• Question 60:

  What does the -f flag in the ansible command allow you to specify?

  A. The playbook file used by ansible

  B. The inventory file used by ansible

  C. The configuration file used by ansible

  D. The forks used by ansible

  Correct Answer: D

  The -f flag allows the user to set the number of forks the ansible process will run.