TF-004 Understand IaC concepts Practice Question
Which TWO statements correctly describe Infrastructure as Code principles?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
IaC enables version control of infrastructure configurations.
A and E are correct. A is correct because IaC enables version control of infrastructure configurations using tools like Git, allowing tracking and rollback. E is correct because IaC automates provisioning and configuration, ensuring repeatable and consistent deployments. B is incorrect because IaC often automates changes without requiring manual approval for every change, though approval workflows can be integrated. C is incorrect because IaC applies to on-premises, hybrid, and multi-cloud environments, not just public cloud. D is incorrect because IaC does not eliminate configuration management tools; they complement each other (e.g., Terraform for provisioning, Ansible for configuration).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
IaC enables version control of infrastructure configurations.
Why this is correct
IaC configurations are defined in code, which can be stored in version control systems like Git. This capability allows teams to track every change made to the infrastructure, review modifications before application, and easily revert to previous stable states if issues arise. Version control also facilitates collaborative development, ensuring a clear audit trail and improved operational transparency for infrastructure management.
- ✗
IaC requires manual approval for every infrastructure change.
Why it's wrong here
While IaC enables the integration of approval gates into deployment pipelines for governance, it fundamentally promotes automation and reduces the necessity for manual intervention in routine infrastructure changes. The core principle of IaC is to define infrastructure declaratively and apply it programmatically, often through CI/CD systems, which can execute changes without requiring explicit manual approval for *every* step or modification.
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IaC is only applicable to public cloud environments.
Why it's wrong here
This statement is incorrect because Infrastructure as Code is a methodology applicable across various environments, not exclusively public clouds. IaC tools and principles can manage on-premises infrastructure, private clouds, hybrid cloud setups, and even network devices, provided they expose programmatic interfaces (APIs) for provisioning and management. The underlying concept is API-driven infrastructure, which is not unique to public cloud providers.
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IaC eliminates the need for configuration management tools.
Why it's wrong here
IaC focuses on provisioning and managing the lifecycle of infrastructure resources themselves, such as virtual machines, networks, and databases. Configuration management tools, like Ansible or Chef, typically handle the configuration *within* those provisioned resources, installing software, managing services, and applying operating system settings. These two approaches are complementary, with IaC setting up the environment and configuration management populating it, rather with one eliminating the need for the other.
- ✓
IaC promotes repeatable and consistent deployments.
Why this is correct
By defining infrastructure declaratively in code, IaC ensures that applying the same configuration consistently yields identical infrastructure environments every time. This eliminates manual errors and configuration drift that often plague traditional manual provisioning methods. The deterministic nature of IaC deployments guarantees consistency across development, staging, and production environments, significantly improving reliability and reducing troubleshooting efforts.
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