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 company is using AWS OpsWorks for configuration management of their application stack. The stack includes a PHP application layer and a MySQL database layer. The DevOps team wants to automate the deployment of a new PHP version across all instances in the PHP layer. The team has created a custom Chef recipe that updates PHP. They want to run this recipe on all instances in the PHP layer in a rolling update fashion to avoid downtime. Which OpsWorks feature should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the OpsWorks 'Run Command' feature to execute the recipe on the PHP layer with rolling update settings.
Option C is correct. OpsWorks allows you to run a custom Chef recipe on a layer using the 'Run Command' feature, and you can specify a rolling update by setting the 'Batch size' and 'Install on all instances' options. Option A is wrong because Setup runs at boot, not on demand. Option B is wrong because automatic updates are not a feature. Option D is wrong because lifecycle events are for automatic execution, not on-demand rolling updates.
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 'Run Command' feature to execute the recipe on the PHP layer with rolling update settings.
Why this is correct
Run Command allows on-demand execution with rolling update configuration.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create a custom Chef cookbook and enable automatic updates in OpsWorks.
Why it's wrong here
Automatic updates are not available in OpsWorks.
✗
Add the recipe to the Setup lifecycle event for the PHP layer.
Why it's wrong here
Setup runs only when instances boot, not on demand for existing instances.
✗
Modify the PHP layer's lifecycle configuration to include the recipe in the Configure event.
Why it's wrong here
Configure runs when instances come online, not for manual updates.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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: Use the OpsWorks 'Run Command' feature to execute the recipe on the PHP layer with rolling update settings. — Option C is correct. OpsWorks allows you to run a custom Chef recipe on a layer using the 'Run Command' feature, and you can specify a rolling update by setting the 'Batch size' and 'Install on all instances' options. Option A is wrong because Setup runs at boot, not on demand. Option B is wrong because automatic updates are not a feature. Option D is wrong because lifecycle events are for automatic execution, not on-demand rolling updates.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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