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Exam Terraform-Associate-004 Topic 4 Question 189 Discussion

Actual exam question for HashiCorp's Terraform-Associate-004 exam
Question #: 189
Topic #: 4
What is an advantage of immutable infrastructure?

Suggested Answer: D Vote an answer

Rationale for Correct answer: With immutable infrastructure, you don't modify running servers/resources in place; you replace them with new versions built from a known image/artifact. This reduces configuration drift and "snowflake" issues, making deployments and rollbacks more predictable-often resulting in less operational complexity compared with troubleshooting in-place changes.
Analysis of Incorrect Options (Distractors):
A: Incorrect-immutable infrastructure specifically avoids in-place upgrades.
B: Not the best answer-upgrades can be fast in some setups, but "quicker" is not guaranteed; replacing infrastructure may take time depending on provisioning and rollout strategy.
C: Incorrect-immutability doesn't inherently mean upgrades are "automatic"; automation is a separate practice/tooling choice.
Key Concept: Immutable vs mutable infrastructure; replace instead of modify to reduce drift and simplify operations.

by Ingram at May 11, 2026, 11:46 PM

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