CDM Infrastructure Automation & Configuration Management 2

Question 1

In Terraform, what is the purpose of the `terraform state mv` command?

Accepted Answer

Move a resource to a different state file or rename it within state

Answer

`terraform state mv` relocates a resource record within or between state files without destroying and recreating the real infrastructure.

Question 2

Which Ansible module is best suited for ensuring a specific line exists in a configuration file without duplicating it?

Accepted Answer

lineinfile

Answer

The `lineinfile` module manages individual lines in files, adding or updating them idempotently based on a regexp match.

Question 3

What does the concept of 'immutable infrastructure' primarily advocate?

Accepted Answer

Replacing servers with new images rather than updating them in place

Answer

Immutable infrastructure replaces servers entirely with freshly built images instead of patching running instances, reducing configuration drift.

Question 4

In Chef, what is the role of a 'cookbook'?

Accepted Answer

A versioned package containing recipes, attributes, and resources that define a configuration policy

Answer

A Chef cookbook is the fundamental unit of configuration, bundling recipes, attributes, templates, and custom resources into a versioned package.

Question 5

Which Terraform feature allows multiple configurations to share the same infrastructure state?

Accepted Answer

Remote backends with workspaces

Answer

Remote backends such as S3 or Terraform Cloud combined with workspaces allow teams to share and isolate state across environments.

(CDM) Certified DevOps Master Practice Test