What is Infrastructure as Code in Terraform - Practice Questions & Exercises

Challenge - 5 Problems

🧠 Conceptual

intermediate

What does Infrastructure as Code (IaC) primarily enable?

Infrastructure as Code (IaC) is a key practice in cloud computing. What is the main benefit it provides?

A It allows managing infrastructure using code to automate setup and changes.

B It requires writing code only for application logic, not infrastructure.

C It replaces all physical servers with virtual machines manually.

D It is a tool for monitoring network traffic in real time.

💡 Hint

Think about how code can help with infrastructure tasks.

Infrastructure as Code means writing code to define and manage infrastructure automatically, making setups repeatable and less error-prone.

❓ Architecture

intermediate

Which Terraform file defines the desired infrastructure state?

In Terraform, which file typically contains the code that describes the infrastructure you want to create?

A variables.tf

B main.tf

C outputs.tf

D terraform.tfstate

💡 Hint

Look for the file where resources are declared.

The main.tf file usually contains the resource definitions that describe the infrastructure to be created.

❓ service_behavior

advanced

What happens when you run 'terraform apply' with changed code?

You have updated your Terraform code to add a new server. What does terraform apply do?

A It ignores the changes and keeps the infrastructure as before.

B It deletes all existing servers and creates only the new one.

C It only shows the changes but does not apply them.

D It creates the new server and updates the infrastructure to match the code.

💡 Hint

Think about how Terraform syncs real infrastructure with code.

Terraform applies the changes by creating, updating, or deleting resources to match the code you wrote.

❓ security

advanced

Which practice improves security when using Infrastructure as Code?

When managing infrastructure with code, which practice helps keep secrets safe?

A Share code files with secrets openly to all team members.

B Write all passwords directly in the Terraform files for easy access.

C Store secrets in environment variables or secret managers, not in code files.

D Use plain text files in the repository to store sensitive data.

💡 Hint

Think about how to keep passwords and keys safe.

Secrets should never be hardcoded in code files. Using environment variables or secret managers keeps them secure.

✅ Best Practice

expert

What is a key benefit of using version control with Infrastructure as Code?

Why should you store your Infrastructure as Code files in a version control system like Git?

A It tracks changes over time and allows safe collaboration and rollback.

B It automatically applies infrastructure changes without review.

C It prevents any changes to infrastructure code once committed.

D It encrypts the infrastructure code to hide it from users.

💡 Hint

Think about teamwork and history of changes.

Version control helps teams work together, see who changed what, and undo mistakes by keeping history.