EX294 Practice Test 9 — 10 Questions

Question 1

Refer to the exhibit. A playbook already includes the 'common' role in its roles list. The current role depends on 'common' with 'allow_duplicates: false'. How many times will the 'common' role run?

Accepted Answer

Once.. Option A is correct. With allow_duplicates: false, the dependency will not run again if the role is already listed in the playbook.

Answer

Not at all.

Answer

Depends on the order of roles.

Answer

Twice.

Question 2

Which directive in an Ansible playbook ensures that a task runs only on the first host in a batch, and results are applied to all hosts?

Accepted Answer

run_once. Option C (run_once) is correct. Option A (delegate_to) changes the host but runs on all hosts. Option B (any_errors_fatal) stops on error. Option D (throttle) limits concurrency.

Answer

any_errors_fatal

Answer

throttle

Answer

delegate_to: localhost

Question 3

An administrator wants to ensure a role's tasks are executed only on certain hosts. Which approach should they use?

Accepted Answer

Use a 'when' condition in the role's tasks. Using the 'when' condition inside the role's tasks allows the administrator to control execution based on host facts or variables. Other options like host_vars or group_vars define variables but do not directly control task execution conditions.

Answer

Set host_vars for each target host

Answer

Set group_vars for the target group

Answer

Use tags on the role

Question 4

Which THREE directives can be used to modify loop behavior in Ansible?

Accepted Answer

ignore_errors. loop_control provides advanced loop features like index_var and label. when can conditionally skip items in a loop. ignore_errors can continue execution on failed items within a loop.

Answer

rescue

Answer

always

Question 5

An administrator wants to use an Ansible role from Ansible Galaxy but the role has a dependency on another role that is already installed. What should be done to avoid conflicts?

Accepted Answer

Set 'allow_duplicates: false' in the parent role's meta/main.yml.. Option A (set allow_duplicates: false) is correct to prevent the dependency from running twice. Option B (force install) overwrites but doesn't prevent duplicate execution. Option C (collection) is a different concept. Option D (no action) would cause the role to run twice by default.

Answer

Define the dependency as a collection.

Answer

Use 'galaxy install --force' to overwrite.

Answer

No action needed; Ansible handles duplicates automatically.

Question 6

A playbook includes multiple roles. The administrator wants to skip a specific role during execution. Which technique should they use?

Accepted Answer

Use tags on the role and run with --skip-tags. The --skip-tags command-line option allows skipping tasks or roles that have a specific tag assigned. By tagging the role with a unique tag, the administrator can skip it without modifying the playbook.

Answer

Add a condition to each task in the role

Answer

Use the '--limit' option to exclude hosts

Answer

Use tags on the role and run with --tags

Question 7

Which TWO statements about Ansible role defaults are true?

Accepted Answer

Defaults are loaded from the defaults/main.yml file.. Role defaults have the lowest variable precedence, making them easy to override. They are defined in the defaults/main.yml file within the role.

Answer

Defaults are only loaded if no vars are defined.

Answer

Defaults have higher priority than variables defined in the playbook.

Answer

Defaults cannot be overridden.

Question 8

A playbook includes a long-running task that should not block the rest of the playbook. The administrator wants to start the task and later check its status. Which method should be used?

Accepted Answer

Use the 'async' keyword with 'poll: 0' and then use async_status module.. Option D (async with poll=0 and then async_status) is correct. Option A (delegate_to) runs on a different host but still blocks. Option B (separate playbook) is inefficient. Option C (throttle) limits concurrency but doesn't background.

Answer

Use 'delegate_to: localhost' and 'run_once'.

Answer

Use a separate playbook invoked with 'ansible-playbook' via command module.

Answer

Use 'throttle' to limit execution.

Question 9

What is the purpose of the 'meta: flush_handlers' task?

Accepted Answer

Force handlers to run immediately. The meta task 'flush_handlers' forces all pending handler actions to run immediately at that point in the play, rather than waiting until the end of the play's task section.

Answer

Restart services immediately

Answer

Clear the handler queue

Answer

Wait for handlers to complete

Question 10

What is the purpose of the 'vars' keyword under the nginx role inclusion?

Accepted Answer

Override default variables for that role. The 'vars' keyword under a role inclusion allows the playbook to override default variables defined in that role's defaults/main.yml file. In this case, it sets http_port to 8080 for the nginx role.

Answer

Set variables for the common role

Answer

Define new variables for the playbook

Answer

Set variables for all roles in the play

EX294 Practice Test 9 — 10 Questions

Exhibit

EX294 Practice Test 9 — 10 Questions

Exhibit