DVA-C02 Development with AWS Services Practice Question
This DVA-C02 practice question tests your understanding of development with aws services. 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.
A developer is creating an API with Amazon API Gateway that needs to accept binary data (e.g., images) and store them directly in an S3 bucket. The developer wants to minimize backend complexity. Which integration type should be used?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS service integration with S3
AWS service integration with S3 allows API Gateway to directly proxy binary data (e.g., images) to an S3 bucket without invoking a Lambda function or other backend. This minimizes backend complexity because the API Gateway handles the request transformation and passes the payload directly to S3 via the PutObject API action, eliminating the need for custom code.
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 service integration with S3
Why this is correct
This allows API Gateway to directly interact with S3 to store objects, minimizing backend complexity.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Lambda proxy integration
Why it's wrong here
Requires a Lambda function to process the binary data, adding extra complexity and potential latency.
✗
HTTP integration
Why it's wrong here
Requires an HTTP backend; not suitable for directly storing to S3 without additional compute.
✗
Mock integration
Why it's wrong here
Returns static responses and cannot interact with S3.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often default to Lambda proxy integration for any data processing task, overlooking that direct AWS service integration can handle binary uploads to S3 without any compute layer, which is the simplest and most cost-effective approach.
Detailed technical explanation
How to think about this question
When using AWS service integration, API Gateway acts as a proxy to S3 by mapping the incoming request to a PutObject API call. The binary data must be base64-encoded in the request and API Gateway will decode it before sending to S3, provided the API is configured with a binary media type (e.g., image/png). This integration uses the AWS SDK under the hood, and the S3 bucket must have appropriate permissions (via a resource policy or IAM role) to allow API Gateway to write objects.
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 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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 service integration with S3 — AWS service integration with S3 allows API Gateway to directly proxy binary data (e.g., images) to an S3 bucket without invoking a Lambda function or other backend. This minimizes backend complexity because the API Gateway handles the request transformation and passes the payload directly to S3 via the PutObject API action, eliminating the need for custom code.
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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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