- A
Retrieve the AMI ID dynamically using AWS Systems Manager Parameter Store and a dynamic reference in the template.
Parameter Store provides a dynamic, maintainable way to reference AMI IDs per region.
- B
Create a new mapping entry for the region by updating the template.
Why wrong: While possible, it is not the most efficient as it requires manual updates.
- C
Use AWS Systems Manager Run Command to find the correct AMI ID.
Why wrong: Run Command is for executing commands on instances, not for parameter retrieval.
- D
Hardcode the AMI ID in the template for the missing region.
Why wrong: Hardcoding is not dynamic and may cause issues if AMI changes.
Question 823 of 1,750
DOP-C02 Configuration Management and IaC Practice Question
This DOP-C02 practice question tests your understanding of configuration management and iac. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 is troubleshooting a CloudFormation stack that fails to create an EC2 instance with a custom AMI. The error message indicates that the AMI ID does not exist. The engineer is using a mapping in the template to select the AMI based on the region. However, the stack is being created in a region not covered by the mapping. What is the most efficient way to resolve this issue?
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
✓
Retrieve the AMI ID dynamically using AWS Systems Manager Parameter Store and a dynamic reference in the template.
The most efficient way is to use AWS Systems Manager Parameter Store with a dynamic reference in the CloudFormation template. This allows the AMI ID to be resolved at deployment time based on the region, without hardcoding or maintaining mappings. Option B (creating a new mapping) is less efficient because it requires manual updates for each region. Option C (Run Command) is not designed for parameter retrieval. Option D (hardcoding) is not scalable and error-prone.
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.
- ✓
Retrieve the AMI ID dynamically using AWS Systems Manager Parameter Store and a dynamic reference in the template.
Why this is correct
Parameter Store provides a dynamic, maintainable way to reference AMI IDs per region.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a new mapping entry for the region by updating the template.
Why it's wrong here
While possible, it is not the most efficient as it requires manual updates.
- ✗
Use AWS Systems Manager Run Command to find the correct AMI ID.
Why it's wrong here
Run Command is for executing commands on instances, not for parameter retrieval.
- ✗
Hardcode the AMI ID in the template for the missing region.
Why it's wrong here
Hardcoding is not dynamic and may cause issues if AMI changes.
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.
Trap categories for this question
Command / output trap
Run Command is for executing commands on instances, not for parameter retrieval.
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.
Visual reference
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.
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Configuration Management and IaC — study guide chapter
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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: Retrieve the AMI ID dynamically using AWS Systems Manager Parameter Store and a dynamic reference in the template. — The most efficient way is to use AWS Systems Manager Parameter Store with a dynamic reference in the CloudFormation template. This allows the AMI ID to be resolved at deployment time based on the region, without hardcoding or maintaining mappings. Option B (creating a new mapping) is less efficient because it requires manual updates for each region. Option C (Run Command) is not designed for parameter retrieval. Option D (hardcoding) is not scalable and error-prone.
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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Last reviewed: Jun 20, 2026
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