This DVA-C02 practice question tests your understanding of development with aws services. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Error: Function 'my-function' timed out after 3 seconds
Refer to the exhibit. A developer invokes an AWS Lambda function and receives this error. The function is configured with a 3-second timeout. The developer needs to process data that sometimes takes up to 10 seconds. What should the developer do?
Error: Function 'my-function' timed out after 3 seconds
Change the invocation type to Event (async).
Why wrong: Async invocation still has a timeout.
Increase the Lambda function timeout to 10 seconds.
Increasing timeout allows longer execution.
Increase the memory allocation for the Lambda function.
Why wrong: More memory may speed up execution but does not change the timeout limit.
Set reserved concurrency to 1.
Why wrong: Reserved concurrency does not affect timeout.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Increase the Lambda function timeout to 10 seconds.
The error indicates the Lambda function is timing out because its configured timeout of 3 seconds is insufficient for processing that sometimes takes up to 10 seconds. Option B directly addresses this by increasing the timeout to 10 seconds, which is within the maximum Lambda timeout of 15 minutes (900 seconds). This ensures the function can complete its execution without being prematurely terminated.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Change the invocation type to Event (async).
Why it's wrong here
Async invocation still has a timeout.
Increase the Lambda function timeout to 10 seconds.
Why this is correct
Increasing timeout allows longer execution.
Related concept
Read the scenario before looking for a memorised answer.
Increase the memory allocation for the Lambda function.
Why it's wrong here
More memory may speed up execution but does not change the timeout limit.
Set reserved concurrency to 1.
Why it's wrong here
Reserved concurrency does not affect timeout.
Common exam traps
The trap here is that candidates may confuse increasing memory (which can improve performance but does not extend the timeout) with solving a timeout error, or incorrectly assume that changing the invocation type to async will allow the function to run longer.
Detailed technical explanation
Lambda function timeouts are enforced by the AWS Lambda service at the hypervisor level; when the configured timeout expires, the execution environment is frozen and the function returns a 408 Request Timeout error or a Task timed out error in CloudWatch Logs. Increasing the timeout is the only way to allow long-running operations, but developers should also consider using asynchronous invocations with a Dead Letter Queue (DLQ) or Step Functions for workflows that exceed the 15-minute maximum, as Lambda is not designed for very long-running processes.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
Quick reference
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Development with AWS Services — study guide chapter
Learn the concepts, then practise the questions
Development with AWS Services practice questions
Targeted practice on this topic area only
All DVA-C02 questions
1,616 questions across all exam domains
AWS Certified Developer Associate DVA-C02 study guide
Full concept coverage aligned to exam objectives
DVA-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise DVA-C02 questions linked to Development with AWS Services.
Practise DVA-C02 questions linked to Security.
Practise DVA-C02 questions linked to Deployment.
Practise DVA-C02 questions linked to Troubleshooting and Optimization.
Practise DVA-C02 questions linked to DVA-C02 fundamentals.
Practise DVA-C02 questions linked to DVA-C02 scenario.
Practise DVA-C02 questions linked to DVA-C02 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
The correct answer is: Increase the Lambda function timeout to 10 seconds. — The error indicates the Lambda function is timing out because its configured timeout of 3 seconds is insufficient for processing that sometimes takes up to 10 seconds. Option B directly addresses this by increasing the timeout to 10 seconds, which is within the maximum Lambda timeout of 15 minutes (900 seconds). This ensures the function can complete its execution without being prematurely terminated.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.