Question 1,441 of 1,616
Troubleshooting and OptimizationmediumMultiple ChoiceObjective-mapped

Quick Answer

The correct answer is that the function executed but threw an unhandled exception. When you see a FunctionError field set to 'Unhandled' in an invocation response, it specifically means the Lambda code ran to completion but encountered a runtime error that was not caught by a try-catch block or error handler within the function. This is a key distinction on the AWS Certified Developer Associate DVA-C02 exam because many candidates mistakenly assume a 200 status code means success—but here, the 200 only confirms the invocation request itself was accepted, not that the function logic succeeded. The 'Unhandled' error appears when your code throws an exception like a TypeError or a custom error that propagates all the way out of the handler. A common trap is confusing this with invocation failures (which return 4xx/5xx) or with handled errors that return a different FunctionError value. Memory tip: think of the 200 as "the door opened" and 'Unhandled' as "the guest tripped inside."

DVA-C02 Troubleshooting and Optimization Practice Question

This DVA-C02 practice question tests your understanding of troubleshooting and optimization. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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
$ aws lambda invokefunction-name my-functionpayload '{"key": "value"}' response.jsonRefer to the exhibit.CLI command output:"StatusCode": 200,"FunctionError": "Unhandled","LogResult": "U1RBUlQgUmVxdWVzdElkOiA4ZjJhNjg2Yy1kM2I4LTExZTgtYjQ4OS1hYjA5M2U0ZjY4MzMgVmVyc2lvbjogJExBVEVTVApFTkQgUmVxdWVzdElkOiA4ZjJhNjg2Yy1kM2I4LTExZTgtYjQ4OS1hYjA5M2U0ZjY4MzMKUkVQT1JUIHJlcXVlc3RJZDogOGYyYTY4NmMtZDNiOC0xMWU4LWI0ODktYWIwOTNlNGY2ODMzCg=="

The exhibit shows the output of invoking a Lambda function from the AWS CLI. The function returned a status code of 200 but included a FunctionError field set to 'Unhandled'. What does this indicate?

Question 1mediummultiple choice
Full question →
Network Topology
$ aws lambda invokefunction-name my-functionpayload '{"key": "value"}' response.jsonRefer to the exhibit.CLI command output:"StatusCode": 200,"FunctionError": "Unhandled","LogResult": "U1RBUlQgUmVxdWVzdElkOiA4ZjJhNjg2Yy1kM2I4LTExZTgtYjQ4OS1hYjA5M2U0ZjY4MzMgVmVyc2lvbjogJExBVEVTVApFTkQgUmVxdWVzdElkOiA4ZjJhNjg2Yy1kM2I4LTExZTgtYjQ4OS1hYjA5M2U0ZjY4MzMKUkVQT1JUIHJlcXVlc3RJZDogOGYyYTY4NmMtZDNiOC0xMWU4LWI0ODktYWIwOTNlNGY2ODMzCg=="

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

The function executed but threw an unhandled exception.

Option C is correct because FunctionError: 'Unhandled' means the function threw an exception that was not caught by the code. Option A is wrong because status code 200 indicates invocation succeeded. Option B is wrong because LogResult is base64-encoded logs, not error. Option D is wrong because the function ran but threw an error.

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.

  • The function executed but threw an unhandled exception.

    Why this is correct

    Unhandled indicates an exception that was not caught.

    Related concept

    Read the scenario before looking for a memorised answer.

  • The function returned an error in the LogResult field.

    Why it's wrong here

    LogResult is logs, not error indicator.

  • The function timed out during execution.

    Why it's wrong here

    Timeout would show different error.

  • The function was invoked but there was a network error.

    Why it's wrong here

    Network error would cause different status code.

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

    Timeout would show different error.

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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.

What to study next

Got this wrong? Here's your next step.

Identify which DVA-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.

Related practice questions

Related DVA-C02 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

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FAQ

Questions learners often ask

What does this DVA-C02 question test?

Troubleshooting and Optimization — This question tests Troubleshooting and Optimization — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The function executed but threw an unhandled exception. — Option C is correct because FunctionError: 'Unhandled' means the function threw an exception that was not caught by the code. Option A is wrong because status code 200 indicates invocation succeeded. Option B is wrong because LogResult is base64-encoded logs, not error. Option D is wrong because the function ran but threw an error.

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

Identify which DVA-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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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.