- A
aws deploy get-deployment
Why wrong: Incorrect: Provides overall deployment summary, not per-instance.
- B
aws deploy get-deployment-instance
Correct: Provides detailed status and error for a specific instance.
- C
aws deploy list-deployments
Why wrong: Incorrect: Lists deployment IDs.
- D
aws deploy list-deployment-instances
Why wrong: Incorrect: Only lists instance IDs, not error details.
Question 255 of 1,616
CodeDeploy Failed Instance: get-deployment-instance CLI Command
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 company is using AWS CodeDeploy to deploy an application to an Auto Scaling group. The deployment fails with 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available for deployment, or some instances in your deployment group are experiencing problems.' The developer wants to identify the specific error on a failed instance. Which AWS CLI command should the developer use?
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
✓
aws deploy get-deployment-instance
The `aws deploy get-deployment-instance` command retrieves detailed information about a single instance in a deployment group, including the specific error messages and lifecycle event logs that caused the instance to fail. This allows the developer to diagnose the root cause of the failure on a particular instance, which is exactly what is needed when the overall deployment fails with a generic error message.
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.
- ✗
aws deploy get-deployment
Why it's wrong here
Incorrect: Provides overall deployment summary, not per-instance.
- ✓
aws deploy get-deployment-instance
Why this is correct
Correct: Provides detailed status and error for a specific instance.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
aws deploy list-deployments
Why it's wrong here
Incorrect: Lists deployment IDs.
- ✗
aws deploy list-deployment-instances
Why it's wrong here
Incorrect: Only lists instance IDs, not error details.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse `list-deployment-instances` (which only returns instance IDs) with `get-deployment-instance` (which returns detailed error data), leading them to choose the list command when they actually need the detailed diagnostic output.
Detailed technical explanation
How to think about this question
Under the hood, `get-deployment-instance` retrieves the `DeploymentOverview` and `LifecycleEvents` for that instance, including the `status` and `endTime` of each lifecycle event (e.g., `BeforeInstall`, `AfterInstall`, `ApplicationStart`). If a script in a lifecycle hook exits with a non-zero code, the error message is captured in the `diagnostics` field of the failed event. In a real-world scenario, a developer might see 'ScriptFailed' in the event status and then inspect the `logTail` or `errorCode` to pinpoint a missing dependency or permission issue.
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 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.
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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: aws deploy get-deployment-instance — The `aws deploy get-deployment-instance` command retrieves detailed information about a single instance in a deployment group, including the specific error messages and lifecycle event logs that caused the instance to fail. This allows the developer to diagnose the root cause of the failure on a particular instance, which is exactly what is needed when the overall deployment fails with a generic error message.
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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Last reviewed: Jul 4, 2026
This DVA-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DVA-C02 exam.
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