- A
AWS OpsWorks for Chef Automate
Why wrong: OpsWorks requires Chef setup, which may be overkill.
- B
AWS Systems Manager State Manager
State Manager can manage and update configurations automatically.
- C
AWS CloudFormation
Why wrong: CloudFormation is for provisioning, not ongoing config management.
- D
AWS Config
Why wrong: AWS Config evaluates resource compliance, not configuration management.
Question 1,212 of 1,750
DOP-C02 Configuration Management and IaC Practice Question
This DOP-C02 practice question tests your understanding of configuration management and iac. 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 DevOps engineer needs to manage configuration files across a fleet of Amazon EC2 instances running Amazon Linux. The configuration files must be updated whenever they change in an S3 bucket. Which AWS service is most suitable for this task?
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 Systems Manager State Manager
AWS Systems Manager State Manager is the most suitable service because it provides a configuration management solution that can automatically apply and maintain the desired state of EC2 instances. It can be configured to run associations on a schedule or in response to events, such as changes to an S3 bucket, using an AWS Lambda trigger or EventBridge rule to invoke the association. This ensures that configuration files are updated whenever they change in the S3 bucket, without requiring manual intervention or a full configuration management platform.
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 OpsWorks for Chef Automate
Why it's wrong here
OpsWorks requires Chef setup, which may be overkill.
- ✓
AWS Systems Manager State Manager
Why this is correct
State Manager can manage and update configurations automatically.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS CloudFormation
Why it's wrong here
CloudFormation is for provisioning, not ongoing config management.
- ✗
AWS Config
Why it's wrong here
AWS Config evaluates resource compliance, not configuration management.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS Config (which only audits and records configuration changes) with Systems Manager State Manager (which actively enforces and applies desired configurations), leading them to select AWS Config as the answer.
Detailed technical explanation
How to think about this question
Under the hood, State Manager uses SSM documents (e.g., AWS-RunRemoteScript or AWS-ApplyPatchBaseline) to define the desired state, and associations are evaluated based on a cron expression or a specified rate. A common real-world pattern is to use an S3 event notification to trigger an EventBridge rule, which then invokes a Lambda function that calls the StartAssociationsOnce API to force an immediate evaluation of the State Manager association, ensuring near-real-time updates. This avoids the latency of waiting for the next scheduled evaluation cycle.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
Configuration Management and IaC — This question tests Configuration Management and IaC — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Systems Manager State Manager — AWS Systems Manager State Manager is the most suitable service because it provides a configuration management solution that can automatically apply and maintain the desired state of EC2 instances. It can be configured to run associations on a schedule or in response to events, such as changes to an S3 bucket, using an AWS Lambda trigger or EventBridge rule to invoke the association. This ensures that configuration files are updated whenever they change in the S3 bucket, without requiring manual intervention or a full configuration management platform.
What should I do if I get this DOP-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 24, 2026
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