- A
AWS CloudTrail
Why wrong: CloudTrail records API calls — who did what and when. Config records what the resource configuration state is over time. Both are complementary: CloudTrail answers 'who changed it?' while Config answers 'what was changed to?'
- B
AWS Config
Config maintains a complete inventory of AWS resources with full configuration history, enabling compliance evaluation, change tracking, and resource relationship mapping.
- C
Amazon CloudWatch
Why wrong: CloudWatch monitors performance metrics and logs — it doesn't provide resource inventory and configuration history.
- D
AWS Systems Manager Inventory
Why wrong: Systems Manager Inventory collects metadata from EC2 instances (installed software, network configurations) — Config provides broader AWS resource configuration tracking across all services.
Quick Answer
The answer is AWS Config, which provides a centralized inventory of all AWS resources and tracks configuration changes over time. This service continuously records resource configurations and configuration history, enabling you to audit changes, assess compliance against custom policies, and view a timeline of how your infrastructure evolved. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your ability to distinguish between AWS Config, CloudTrail, and CloudWatch: CloudTrail records API activity (who did what), CloudWatch monitors performance metrics and logs, while AWS Config specifically handles inventory and configuration change tracking. A common trap is confusing CloudTrail’s API logs with Config’s resource state history—remember that CloudTrail answers “who made the change,” but Config answers “what changed in the resource itself.” For a quick memory tip, think “Config = Configuration inventory and change history,” and picture it as a snapshot album of every resource’s settings over time.
CLF-C02 Cloud Concepts Practice Question
This CLF-C02 practice question tests your understanding of cloud concepts. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company wants to migrate their on-premises applications to AWS but is concerned about losing visibility into their infrastructure. Which AWS service provides a centralized inventory of all AWS resources and tracks configuration changes over time?
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
AWS Config
AWS Config is the correct service because it provides a centralized inventory of all AWS resources and continuously tracks configuration changes over time. It enables you to assess, audit, and evaluate the configurations of your AWS resources against desired policies, giving you full visibility into infrastructure state and history.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS CloudTrail
Why it's wrong here
CloudTrail records API calls — who did what and when. Config records what the resource configuration state is over time. Both are complementary: CloudTrail answers 'who changed it?' while Config answers 'what was changed to?'
- ✓
AWS Config
Why this is correct
Config maintains a complete inventory of AWS resources with full configuration history, enabling compliance evaluation, change tracking, and resource relationship mapping.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Amazon CloudWatch
Why it's wrong here
CloudWatch monitors performance metrics and logs — it doesn't provide resource inventory and configuration history.
- ✗
AWS Systems Manager Inventory
Why it's wrong here
Systems Manager Inventory collects metadata from EC2 instances (installed software, network configurations) — Config provides broader AWS resource configuration tracking across all services.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS Config with AWS CloudTrail, mistakenly thinking CloudTrail's API logging provides configuration tracking, but CloudTrail only records who made the call, not the resulting configuration state or history.
Detailed technical explanation
How to think about this question
AWS Config uses configuration items (CIs) to capture point-in-time snapshots of resource configurations and stores them as configuration history in Amazon S3. It supports resource types like EC2 instances, security groups, and IAM roles, and can trigger AWS Lambda functions via Amazon SNS when configuration changes are detected, enabling automated remediation. A real-world scenario is tracking when a security group rule is modified to allow SSH from 0.0.0.0/0, which Config can flag as a non-compliant change.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Cloud Concepts — study guide chapter
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Concepts — This question tests Cloud Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Config — AWS Config is the correct service because it provides a centralized inventory of all AWS resources and continuously tracks configuration changes over time. It enables you to assess, audit, and evaluate the configurations of your AWS resources against desired policies, giving you full visibility into infrastructure state and history.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This CLF-C02 practice question is part of Courseiva's free Amazon Web Services 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 CLF-C02 exam.
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