Chef DevOps Cookbook Development & Resource Management 2

Question 1

Where are Chef custom resources defined within a cookbook?

Accepted Answer

In the `resources/` directory as `.rb` files

Answer

In the `libraries/` directory as Ruby modules

Answer

In the `recipes/` directory with a `resource_` prefix

Answer

In the `providers/` directory as action handlers

Question 2

In a Chef custom resource definition, what keyword is used to declare an action block?

Accepted Answer

action

Answer

define_action

Answer

provides

Answer

execute

Question 3

What is the Chef 'wrapper cookbook' pattern?

Accepted Answer

A cookbook that depends on a community cookbook and overrides its attributes to customize behavior

Answer

A cookbook that archives and distributes another cookbook as a compressed artifact

Answer

A cookbook that wraps multiple cookbook recipes into a single entry-point recipe

Answer

A cookbook that provides a REST API interface for Chef resource management

Question 4

What does `include_recipe` do when called inside a Chef recipe?

Accepted Answer

It adds another recipe's resources to the current run context in order

Answer

It downloads a recipe from Chef Supermarket at runtime

Answer

It imports a recipe as a Ruby library function callable in the cookbook

Answer

It creates a version pin on a dependent cookbook's named recipe

Question 5

What is a Chef 'data bag' used for?

Accepted Answer

A global JSON data store on the Chef Server for sharing configuration data across nodes

Answer

A compressed archive of cookbook files for offline distribution

Answer

A local directory that caches downloaded cookbooks on the workstation

Answer

A Chef resource for managing archive files on managed nodes

Question 6

Which Chef resource guard executes a resource only when its condition evaluates to true?

Accepted Answer

only_if

Answer

not_if

Answer

guard_if

Answer

when_true

Question 7

Which Ohai-populated node attribute stores the operating system distribution name such as 'ubuntu' or 'centos'?

Accepted Answer

node['platform']

Answer

node['os']

Answer

node['distribution']

Answer

node['kernel']['os']