DVA-C02 Development with AWS Services Practice Question
This DVA-C02 practice question tests your understanding of development with aws services. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 using AWS Lambda to process events from an Amazon Kinesis stream. The function has been failing with 'ProvisionedThroughputExceededException' errors when writing to a DynamoDB table. What should the developer do to resolve this issue?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Implement retry logic with exponential backoff in the Lambda function.
Option C is correct because implementing a retry mechanism with exponential backoff is the recommended approach to handle throttling errors from DynamoDB. Option A is wrong because increasing Lambda memory does not affect DynamoDB throughput. Option B is wrong because decreasing batch size may reduce the number of writes per invocation, but does not handle throttling directly; exponential backoff is more effective. Option D is wrong because changing the Kinesis stream's shard count does not affect DynamoDB throughput.
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.
✗
Decrease the batch size of the Kinesis event source mapping.
Why it's wrong here
Reducing batch size may help but does not address the throttling issue as effectively as retries.
✓
Implement retry logic with exponential backoff in the Lambda function.
Why this is correct
Exponential backoff is the standard way to handle ProvisionedThroughputExceededException.
Related concept
Read the scenario before looking for a memorised answer.
✗
Increase the number of shards in the Kinesis stream.
Why it's wrong here
Shard count affects Kinesis throughput, not DynamoDB.
✗
Increase the memory allocated to the Lambda function.
Why it's wrong here
Memory allocation does not affect DynamoDB write capacity.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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: Implement retry logic with exponential backoff in the Lambda function. — Option C is correct because implementing a retry mechanism with exponential backoff is the recommended approach to handle throttling errors from DynamoDB. Option A is wrong because increasing Lambda memory does not affect DynamoDB throughput. Option B is wrong because decreasing batch size may reduce the number of writes per invocation, but does not handle throttling directly; exponential backoff is more effective. Option D is wrong because changing the Kinesis stream's shard count does not affect DynamoDB throughput.
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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