- A
Use the OpsWorks agent to directly copy the file to each instance via SSH.
Why wrong: Not automated or scalable.
- B
Add the configuration file as a stack-level custom cookbook and assign it to all layers.
Why wrong: Stack-level applies to all layers, not just PHP.
- C
Create a custom cookbook with a recipe that deploys the configuration file, and assign it to the Deploy lifecycle event of the PHP layer.
This targets only the PHP instances at deploy time.
- D
Use a custom JSON attribute in the stack settings to define the file content, and then use a built-in recipe to apply it.
Why wrong: Built-in recipes do not handle custom files.
Question 18 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.
An organization uses AWS OpsWorks for configuration management. They have a stack with multiple layers, including a PHP application layer and a MySQL database layer. The operations team needs to deploy a custom configuration file to all PHP application instances. How should this be accomplished using OpsWorks?
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
✓
Create a custom cookbook with a recipe that deploys the configuration file, and assign it to the Deploy lifecycle event of the PHP layer.
Option C is correct because OpsWorks uses Chef cookbooks to manage configuration. By creating a custom cookbook with a recipe that deploys the configuration file and assigning it to the Deploy lifecycle event of the PHP layer, the recipe runs on all PHP application instances during deployment, ensuring the file is placed correctly. This approach leverages OpsWorks' built-in lifecycle events and Chef's idempotent execution model.
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.
- ✗
Use the OpsWorks agent to directly copy the file to each instance via SSH.
Why it's wrong here
Not automated or scalable.
- ✗
Add the configuration file as a stack-level custom cookbook and assign it to all layers.
Why it's wrong here
Stack-level applies to all layers, not just PHP.
- ✓
Create a custom cookbook with a recipe that deploys the configuration file, and assign it to the Deploy lifecycle event of the PHP layer.
Why this is correct
This targets only the PHP instances at deploy time.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use a custom JSON attribute in the stack settings to define the file content, and then use a built-in recipe to apply it.
Why it's wrong here
Built-in recipes do not handle custom files.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse stack-level custom cookbooks (which apply to all layers) with layer-specific lifecycle event assignments, leading them to choose Option B, which would incorrectly deploy the configuration file to the MySQL layer as well.
Detailed technical explanation
How to think about this question
Under the hood, OpsWorks runs Chef-client in local mode, executing recipes from cookbooks stored in S3 or Git. The Deploy lifecycle event is triggered after the application code is deployed, making it ideal for placing configuration files that depend on the app version. In real-world scenarios, this pattern is used to inject environment-specific settings (e.g., database connection strings) without modifying the application codebase.
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.
Quick reference
OSI Model Reference
| Layer | Name | PDU | Key Protocols / Devices |
|---|---|---|---|
| 7 | Application | Data | HTTP, HTTPS, DNS, SMTP, FTP, SSH |
| 6 | Presentation | Data | TLS / SSL, JPEG, ASCII encoding |
| 5 | Session | Data | NetBIOS, RPC, SIP |
| 4 | Transport | Segment / Datagram | TCP, UDP |
| 3 | Network | Packet | IP, ICMP, OSPF — Routers |
| 2 | Data Link | Frame | Ethernet, Wi-Fi, PPP — Switches, Bridges |
| 1 | Physical | Bits | Cables, NICs, Hubs, Repeaters |
What to study next
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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: Create a custom cookbook with a recipe that deploys the configuration file, and assign it to the Deploy lifecycle event of the PHP layer. — Option C is correct because OpsWorks uses Chef cookbooks to manage configuration. By creating a custom cookbook with a recipe that deploys the configuration file and assigning it to the Deploy lifecycle event of the PHP layer, the recipe runs on all PHP application instances during deployment, ensuring the file is placed correctly. This approach leverages OpsWorks' built-in lifecycle events and Chef's idempotent execution model.
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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