← DVA-C02·Amazon Web Services

Question 1,521 of 1,616

Development with AWS Services →easyMultiple ChoiceObjective-mapped

Sharing an AMI Across AWS Accounts

This DVA-C02 practice question tests your understanding of development with aws services. 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 developer wants to share an Amazon Machine Image (AMI) from one AWS account to another. The AMI is backed by Amazon EBS snapshots. What must the developer do to ensure the target account can launch an EC2 instance from the AMI?

A
Copy the AMI to the target account's region and share the AMI.
Why wrong: Copying is not required; sharing the original AMI is sufficient.
B
Make the AMI public and share the EBS snapshots.
Why wrong: Making public is not necessary for a single account.
C
Share the KMS key used to encrypt the EBS snapshots with the target account.
Why wrong: Only needed if snapshots are encrypted with a KMS key.
D
Modify the AMI permissions to allow the target account and share the underlying EBS snapshots.
Both AMI and snapshots must be shared.

Full breakdown with real-world context →

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

✓

Modify the AMI permissions to allow the target account and share the underlying EBS snapshots.

Option D is correct because sharing an AMI backed by EBS snapshots requires both the AMI permissions to be modified to allow the target account and the underlying EBS snapshots to be shared with that account. Without sharing the snapshots, the target account cannot launch an instance because it lacks access to the snapshot data needed to create the root volume.

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.

✗
Copy the AMI to the target account's region and share the AMI.
Why it's wrong here
Copying is not required; sharing the original AMI is sufficient.
✗
Make the AMI public and share the EBS snapshots.
Why it's wrong here
Making public is not necessary for a single account.
✗
Share the KMS key used to encrypt the EBS snapshots with the target account.
Why it's wrong here
Only needed if snapshots are encrypted with a KMS key.
✓
Modify the AMI permissions to allow the target account and share the underlying EBS snapshots.
Why this is correct
Both AMI and snapshots must be shared.
Related concept
Read the scenario before looking for a memorised answer.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often assume sharing the AMI alone is sufficient, forgetting that the underlying EBS snapshots must also be explicitly shared with the target account.

Detailed technical explanation

How to think about this question

When an AMI is shared, the underlying EBS snapshots must also be shared with the target account via the `ModifySnapshotAttribute` API, setting the `createVolumePermission` for the target account. If the snapshots are encrypted with a customer-managed KMS key, the key must be shared with the target account, and the target account must have permissions to use the key via a KMS key policy. The target account can then use the shared AMI to launch an EC2 instance, which triggers the creation of volumes from the shared snapshots.

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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this DVA-C02 question test?

Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Modify the AMI permissions to allow the target account and share the underlying EBS snapshots. — Option D is correct because sharing an AMI backed by EBS snapshots requires both the AMI permissions to be modified to allow the target account and the underlying EBS snapshots to be shared with that account. Without sharing the snapshots, the target account cannot launch an instance because it lacks access to the snapshot data needed to create the root volume.

What should I do if I get this DVA-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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