CDM Infrastructure Automation & Configuration Management 3

Question 1

Which Terraform meta-argument is used to create multiple instances of the same resource using a map variable?

Accepted Answer

for_each

Answer

count

Answer

depends_on

Answer

lifecycle

Question 2

What Ansible construct allows you to define and reuse a set of tasks with its own variables, files, and handlers?

Accepted Answer

Role

Answer

Playbook

Answer

Inventory

Answer

Vault

Question 3

In the context of IaC security, what does 'policy as code' typically enforce?

Accepted Answer

Automated scanning of IaC templates against compliance rules before deployment

Answer

Storing all IaC files in a private repository

Answer

Requiring two-factor authentication on all cloud provider accounts

Answer

Encrypting Terraform state files using customer-managed keys

Question 4

Which AWS service is commonly used as a remote backend for storing Terraform state files?

Accepted Answer

Amazon S3 with optional DynamoDB locking

Answer

AWS CodePipeline

Answer

Amazon DynamoDB

Answer

AWS Systems Manager Parameter Store

Question 5

In Ansible, what is the function of `ansible-vault encrypt`?

Accepted Answer

Encrypts sensitive data files so they can be safely stored in version control

Answer

Validates the syntax of an Ansible playbook

Answer

Signs playbooks with a GPG key for integrity verification

Answer

Compresses large inventory files to improve performance

Question 6

What is the primary difference between Terraform `plan` and `apply` commands?

Accepted Answer

`plan` shows a preview of changes without modifying infrastructure; `apply` executes them

Answer

`plan` validates HCL syntax while `apply` checks provider API availability

Answer

`plan` runs in dry-run mode against a local state copy; `apply` syncs with remote state

Answer

`plan` is used for new resources only; `apply` handles updates and deletions

Question 7

Which configuration management approach uses a central server that nodes periodically contact to retrieve and apply their desired state?

Accepted Answer

Pull-based model

Answer

Push-based model

Answer

Event-driven model

Answer

Ephemeral model