DEA-C01 Data Ingestion and Transformation Practice Question
This DEA-C01 practice question tests your understanding of data ingestion and transformation. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. 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.
Network Topology
Refer to the exhibit. A data engineer runs a Glue job manually and receives a ThrottlingException. The engineer checks the job run history and sees a previous failure with the same error. What is the MOST likely cause of the throttling, and which solution is MOST appropriate?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 script that calls start-job-run.
Option B is correct because the error 'Rate exceeded' indicates the Glue API rate limit has been reached. The most likely cause is multiple concurrent job runs or too many API calls. Implementing retry logic with exponential backoff in the job or script that triggers the job will handle transient throttling. Option A (increasing DPUs) does not affect API rate. Option C (deleting old job runs) might free up quota but is not the best practice. Option D (using reserved capacity) is not applicable for Glue API calls.
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.
✗
Increase the number of DPUs for the job to reduce runtime.
Why it's wrong here
DPUs affect processing capacity; throttling is due to API rate limits, not compute resources.
✓
Implement retry logic with exponential backoff in the script that calls start-job-run.
Why this is correct
Exponential backoff handles API rate limits by retrying after a delay, reducing the chance of throttling.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use AWS Glue reserved capacity to guarantee API throughput.
Why it's wrong here
Reserved capacity is for DPUs, not for API call rates.
✗
Delete old job runs to reduce the number of entries in the job run history.
Why it's wrong here
Job run history does not affect API rate limits; throttling is based on API call rate per account.
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 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 DEA-C01 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.
Data Ingestion and Transformation — This question tests Data Ingestion and Transformation — 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 script that calls start-job-run. — Option B is correct because the error 'Rate exceeded' indicates the Glue API rate limit has been reached. The most likely cause is multiple concurrent job runs or too many API calls. Implementing retry logic with exponential backoff in the job or script that triggers the job will handle transient throttling. Option A (increasing DPUs) does not affect API rate. Option C (deleting old job runs) might free up quota but is not the best practice. Option D (using reserved capacity) is not applicable for Glue API calls.
What should I do if I get this DEA-C01 question wrong?
Identify which DEA-C01 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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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