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CAS-004 Practice Question: The primary benefit of using infrastructure as…
What is the primary benefit of using infrastructure as code (IaC) tools like Terraform for cloud resource provisioning?
⚠ Common exam trap
Common pitfall: Candidates often select a secondary benefit (like cost reduction or automated patching) instead of the primary benefit of IaC, which is declarative, version-controlled repeatability.
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
✓
It provides a declarative language to define resources, enabling version control and repeatability.
Infrastructure as Code (IaC) tools like Terraform use a declarative language (HCL) to define cloud resources in configuration files. This approach enables version control (e.g., Git), repeatable deployments, and consistent environments, which are the primary benefits of IaC over manual provisioning.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It reduces cloud costs by optimizing resource usage.
Why it's wrong here
Cost optimization is a possible benefit but not the primary one.
- ✗
It eliminates the need for manual configuration management.
Why it's wrong here
IaC reduces but does not eliminate manual management.
- ✓
It provides a declarative language to define resources, enabling version control and repeatability.
Why this is correct
Declarative IaC ensures consistent and tracked deployments.
- ✗
It automatically applies security patches to resources.
Why it's wrong here
IaC does not automatically patch; it defines the desired state.
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