DVA-C02 Development with AWS Services Practice Question
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.
A company is developing a serverless application using AWS Lambda and API Gateway. The application needs to process user uploads to Amazon S3. The Lambda function must be invoked asynchronously after an object is uploaded to an S3 bucket. Which configuration should the developer use to invoke the Lambda function?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure the S3 bucket to send events to Lambda by adding a Lambda trigger in the S3 bucket properties.
S3 can send event notifications to Lambda when an object is created. The Lambda function must be configured with a resource-based policy allowing S3 to invoke it. S3 event notifications are asynchronous. API Gateway is not needed. CloudWatch Events can monitor but not directly trigger on S3 object creation. S3 batch operations are for large-scale batch jobs.
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.
✓
Configure the S3 bucket to send events to Lambda by adding a Lambda trigger in the S3 bucket properties.
Why this is correct
S3 can directly invoke Lambda asynchronously using event notifications.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure the S3 bucket to send events to an Amazon SQS queue and have Lambda poll the queue.
Why it's wrong here
This adds unnecessary complexity; S3 can directly invoke Lambda.
✗
Configure the S3 bucket to send events to Amazon CloudWatch Events and have CloudWatch invoke Lambda.
Why it's wrong here
CloudWatch Events can trigger Lambda but not directly from S3 object creation; S3 events are better.
✗
Configure the S3 bucket to send events to an Amazon API Gateway endpoint that triggers the Lambda function.
Why it's wrong here
API Gateway is not needed for S3 event notifications to Lambda.
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.
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 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.
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.
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: Configure the S3 bucket to send events to Lambda by adding a Lambda trigger in the S3 bucket properties. — S3 can send event notifications to Lambda when an object is created. The Lambda function must be configured with a resource-based policy allowing S3 to invoke it. S3 event notifications are asynchronous. API Gateway is not needed. CloudWatch Events can monitor but not directly trigger on S3 object creation. S3 batch operations are for large-scale batch jobs.
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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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
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