Question 1,528 of 1,746
Accelerate Workload Migration and ModernizationmediumMultiple ChoiceObjective-mapped

SAP-C02 Instance store Practice Question

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. A key principle to apply: instance store. 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
aws ec2 describe-instancesquery 'Reservations[*].Instances[*].[InstanceIdoutput table+Refer to the exhibit.```| DescribeInstances || i-0a1b2c3d4e5f6g7h8 | running || i-0a1b2c3d4e5f6g7h9 | stopped || i-0a1b2c3d4e5f6g7ha | terminated |

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?

Network Topology
aws ec2 describe-instancesquery 'Reservations[*].Instances[*].[InstanceIdoutput table+Refer to the exhibit.```| DescribeInstances || i-0a1b2c3d4e5f6g7h8 | running || i-0a1b2c3d4e5f6g7h9 | stopped || i-0a1b2c3d4e5f6g7ha | terminated |

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 an AMI from the stopped instance before starting it, then launch a new instance from the AMI.

Instance store volumes provide temporary block-level storage for an EC2 instance. The data on instance store volumes persists only during the lifetime of the associated instance; it is lost when the instance is stopped or terminated. Therefore, once an instance with instance store volumes is stopped, the data on those volumes is irrecoverable. None of the provided options can retain the instance store data. Option A is incorrect because modifying the instance type does not recover lost data. Option B is incorrect because instance store volumes cannot be detached. Option C is incorrect because an AMI captures only EBS-backed volumes, not instance store volumes. Option D is incorrect because simply starting the instance will not restore the lost data. To preserve instance store data, it must be copied to persistent storage (e.g., EBS, S3) before stopping the instance.

Key principle: Instance store

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

    Modifying the instance type does not recover instance store data that has already been lost. Instance store volumes are ephemeral and their data is lost on stop.

  • Detach the instance store volume and attach it to a running instance.

    Why it's wrong here

    Instance store volumes cannot be detached from an instance. They are physically attached to the host computer and are not detachable or reattachable.

  • Create an AMI from the stopped instance before starting it, then launch a new instance from the AMI.

    Why this is correct

    An AMI captures only the root volume and any attached EBS volumes. Instance store volumes are not included in the AMI, so creating an AMI from a stopped instance will not capture the instance store data.

    Related concept

    Instance store

  • Run `aws ec2 start-instances --instance-ids i-0a1b2c3d4e5f6g7h9` to start the instance.

    Why it's wrong here

    Starting the instance will restore the instance's state but the instance store data was already lost when the instance was stopped. This command does not retain the data.

Common exam traps

Common exam trap: answer the scenario, not the keyword

A common misconception is that creating an AMI from a stopped instance will preserve all its data, including instance store volumes. In reality, AMIs only capture EBS-backed volumes, not instance store volumes.

Trap categories for this question

  • Command / output trap

    Starting the instance will restore the instance's state but the instance store data was already lost when the instance was stopped. This command does not retain the data.

Detailed technical explanation

How to think about this question

Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.

KKey Concepts to Remember

  • Instance store
  • Amazon Machine Image (AMI)

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

Instance store

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 ClassMin DurationRetrievalUse Case
S3 StandardNoneImmediateFrequently accessed data
S3 Standard-IA30 daysImmediateInfrequent access, rapid retrieval
S3 One Zone-IA30 daysImmediateNon-critical infrequent data
S3 Intelligent-TieringNoneImmediate–hoursUnknown or changing access patterns
S3 Glacier Instant90 daysMillisecondsArchive with instant retrieval
S3 Glacier Flexible90 daysMinutes–hoursArchive, flexible retrieval
S3 Glacier Deep Archive180 daysHoursLong-term compliance archive

What to study next

Got this wrong? Here's your next step.

Review instance store, then practise related SAP-C02 questions on the same topic to reinforce the concept.

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FAQ

Questions learners often ask

What does this SAP-C02 question test?

Accelerate Workload Migration and Modernization — This question tests Accelerate Workload Migration and Modernization — Instance store.

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. — Instance store volumes provide temporary block-level storage for an EC2 instance. The data on instance store volumes persists only during the lifetime of the associated instance; it is lost when the instance is stopped or terminated. Therefore, once an instance with instance store volumes is stopped, the data on those volumes is irrecoverable. None of the provided options can retain the instance store data. Option A is incorrect because modifying the instance type does not recover lost data. Option B is incorrect because instance store volumes cannot be detached. Option C is incorrect because an AMI captures only EBS-backed volumes, not instance store volumes. Option D is incorrect because simply starting the instance will not restore the lost data. To preserve instance store data, it must be copied to persistent storage (e.g., EBS, S3) before stopping the instance.

What should I do if I get this SAP-C02 question wrong?

Review instance store, then practise related SAP-C02 questions on the same topic to reinforce the concept.

What is the key concept behind this question?

Instance store

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Last reviewed: Jun 20, 2026

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