The correct answer is to create an AMI from the stopped instance before starting it, then launch a new instance from the AMI. This is necessary because instance store volumes are ephemeral, meaning their data is tied to the physical host and is permanently deleted the moment the instance enters a stopped state; starting the instance again will only attach fresh, empty instance store volumes. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this question tests your deep understanding of instance store persistence versus EBS-backed storage, often appearing as a trap where candidates mistakenly believe stopping preserves data or that instance stores can be detached. A common memory tip is to think of instance store as “scratch paper” — once you stop writing, the paper is thrown away, so you must save your work (create an AMI) before you stop.
SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
This SAP-C02 practice question tests your understanding of accelerate workload migration and modernization. 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.
Network Topology
Refer to the exhibit. A solutions architect runs the CLI command to list EC2 instances. The output shows three instances. The architect wants to start the stopped instance and ensure it retains its instance store data. What should the architect do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create an AMI from the stopped instance before starting it, then launch a new instance from the AMI.
Option B is correct. Instance store volumes are ephemeral and data is lost when the instance is stopped. To retain data, the architect must move the data to an EBS volume or another persistent store. Option A is wrong because starting the instance will not recover instance store data. Option C is wrong because instance store volumes cannot be detached. Option D is wrong because changing the instance type does not affect instance store persistence.
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.
✗
Modify the instance type to one that supports instance store, then start the instance.
Why it's wrong here
Changing instance type does not recover lost data.
✗
Detach the instance store volume and attach it to a running instance.
Why it's wrong here
Instance store volumes cannot be detached; they are physically attached to the host.
✓
Create an AMI from the stopped instance before starting it, then launch a new instance from the AMI.
Why this is correct
But instance store data is not captured in AMI. Better to copy data to EBS beforehand.
Related concept
Read the scenario before looking for a memorised answer.
✗
Run `aws ec2 start-instances --instance-ids i-0a1b2c3d4e5f6g7h9` to start the instance.
Why it's wrong here
Starting the instance will not restore instance store data.
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 SAP-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.
Accelerate Workload Migration and Modernization — This question tests Accelerate Workload Migration and Modernization — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create an AMI from the stopped instance before starting it, then launch a new instance from the AMI. — Option B is correct. Instance store volumes are ephemeral and data is lost when the instance is stopped. To retain data, the architect must move the data to an EBS volume or another persistent store. Option A is wrong because starting the instance will not recover instance store data. Option C is wrong because instance store volumes cannot be detached. Option D is wrong because changing the instance type does not affect instance store persistence.
What should I do if I get this SAP-C02 question wrong?
Identify which SAP-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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