CV0-004 Deployment Practice Question
A company uses AWS CloudFormation to manage its infrastructure. After updating a stack, a developer notices that the actual infrastructure differs from the expected template. Which CloudFormation feature should be used to identify these differences?
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
✓
Drift detection
Drift detection allows you to detect whether a stack's actual configuration differs from its expected template 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.
- ✓
Drift detection
Why this is correct
Drift detection compares the actual deployed resource configuration against the expected stack template and reports any divergence. It directly identifies where live infrastructure no longer matches the template, satisfying the developer's need to locate differences after the update.
- ✗
Stack sets
Why it's wrong here
Stack sets deploy one template across multiple accounts and Regions; they do not compare live resources against the template. Drift detection performs that comparison. Stack sets would be correct for rolling out identical infrastructure at scale across an organisation.
- ✗
Change sets
Why it's wrong here
Change sets preview how proposed template changes would alter resources before execution; they do not compare a deployed stack against its template. Detecting drift requires drift detection, which reports actual versus expected configuration. Change sets suit reviewing planned updates, not auditing existing divergence.
- ✗
Rollback triggers
Why it's wrong here
Rollback triggers monitor alarms during stack operations and revert changes when thresholds breach; they do not report divergence after deployment. Drift detection identifies where actual resources differ from the template. Rollback triggers suit guarding deployments against failed updates.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CV0-004 exam.