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 Lambda function receives events from EventBridge. The developer wants failed invocations to be retried and then stored for later analysis if retries are exhausted. Which configuration should be used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure EventBridge retry policy and a dead-letter queue
Option B is correct because EventBridge supports a configurable retry policy (with a maximum event age up to 24 hours and up to 185 retries by default) and can route events that exceed the retry limit to an Amazon SQS dead-letter queue (DLQ). This ensures failed invocations are retried automatically and, if all retries are exhausted, the event is stored durably in the DLQ for later analysis or reprocessing.
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.
✗
Enable API Gateway access logging
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
✓
Configure EventBridge retry policy and a dead-letter queue
Why this is correct
Correct for the stated requirement.
Related concept
Read the scenario before looking for a memorised answer.
✗
Increase reserved concurrency to zero
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
✗
Store events in CloudFormation outputs
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse the Lambda function's own DLQ configuration (which applies to synchronous and asynchronous invocations) with EventBridge's rule-level retry policy and DLQ, but EventBridge manages retries and DLQ delivery independently of the Lambda service's built-in retry mechanism.
Detailed technical explanation
How to think about this question
EventBridge's retry policy uses exponential backoff with jitter, starting with a 1-second delay and doubling up to a maximum of 5 minutes between attempts. The dead-letter queue must be an SQS standard queue (not FIFO) and must be in the same AWS account and Region as the EventBridge rule; events sent to the DLQ include the original event payload plus metadata such as the error message and the number of retries attempted. This pattern is critical for event-driven architectures where transient failures (e.g., throttling, network blips) should be retried, but persistent failures (e.g., malformed events) must be captured for debugging without losing data.
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 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.
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: Configure EventBridge retry policy and a dead-letter queue — Option B is correct because EventBridge supports a configurable retry policy (with a maximum event age up to 24 hours and up to 185 retries by default) and can route events that exceed the retry limit to an Amazon SQS dead-letter queue (DLQ). This ensures failed invocations are retried automatically and, if all retries are exhausted, the event is stored durably in the DLQ for later analysis or reprocessing.
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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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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