Courseiva
← DEA-C01
Full test
Question 1,246 of 1,786
Data Ingestion and Transformation →easyMultiple ChoiceObjective-mapped

DEA-C01 Data Ingestion and Transformation Practice Question

This DEA-C01 practice question tests your understanding of data ingestion and transformation. 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.

Exhibit

Refer to the exhibit.

```
{
  "Records": [
    {
      "eventVersion": "2.0",
      "eventSource": "aws:s3",
      "awsRegion": "us-east-1",
      "eventName": "ObjectCreated:Put",
      "s3": {
        "s3SchemaVersion": "1.0",
        "bucket": {
          "name": "my-bucket",
          "arn": "arn:aws:s3:::my-bucket"
        },
        "object": {
          "key": "data/2024/01/01/file.json",
          "size": 1024,
          "eTag": "abc123"
        }
      }
    }
  ]
}
```

Refer to the exhibit. An S3 event notification is configured to trigger an AWS Lambda function when objects are created in 'my-bucket'. The Lambda function processes the JSON file and writes results to Amazon DynamoDB. The function fails with a timeout error. Which action should the engineer take to resolve the issue?

Exhibit

Refer to the exhibit.

```
{
  "Records": [
    {
      "eventVersion": "2.0",
      "eventSource": "aws:s3",
      "awsRegion": "us-east-1",
      "eventName": "ObjectCreated:Put",
      "s3": {
        "s3SchemaVersion": "1.0",
        "bucket": {
          "name": "my-bucket",
          "arn": "arn:aws:s3:::my-bucket"
        },
        "object": {
          "key": "data/2024/01/01/file.json",
          "size": 1024,
          "eTag": "abc123"
        }
      }
    }
  ]
}
```

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Increase the Lambda function timeout

The Lambda function is failing with a timeout error, which indicates that the function is taking longer to execute than the default timeout of 3 seconds. Increasing the Lambda function timeout allows the function to run longer and complete its processing of the JSON file and DynamoDB write operation without being prematurely terminated.

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.

  • ✗

    Modify the S3 event notification to use a different event type

    Why it's wrong here

    The event type is correct for object creation.

  • ✗

    Grant the Lambda function permission to access DynamoDB

    Why it's wrong here

    Timeout suggests insufficient time, not permissions.

  • ✗

    Change the trigger to Amazon SQS instead of S3

    Why it's wrong here

    The trigger is not the issue.

  • ✓

    Increase the Lambda function timeout

    Why this is correct

    Timeout error indicates the function needs more time.

    Related concept

    Read the scenario before looking for a memorised answer.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The DEA-C01 exam often tests the distinction between timeout errors and permission errors, leading candidates to incorrectly choose a permissions fix (Option B) when the error message explicitly states 'timeout'.

Detailed technical explanation

How to think about this question

Lambda functions have a configurable timeout ranging from 1 second to 15 minutes (900 seconds). The default timeout is 3 seconds, which is often insufficient for operations like parsing large JSON files or writing to DynamoDB under heavy load. Under the hood, Lambda enforces the timeout by sending a SIGTERM signal to the execution environment; if the function does not respond, it is terminated with a 'Task timed out' error in CloudWatch Logs. In real-world scenarios, increasing the timeout is the first step when debugging timeout errors, but engineers should also consider optimizing the function code or using asynchronous invocations to avoid long-running executions.

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.

Visual reference

Client Recursive Resolver Root DNS (13 root servers) TLD DNS (.com, .org, …) Authoritative example.com query IP addr answer

Quick reference

AWS S3 Storage Class Comparison

Storage ClassMin DurationRetrievalUse Case
S3 StandardNoneImmediateFrequently accessed data
S3 Standard-IA30 daysImmediateInfrequent access, rapid retrieval
S3 One Zone-IA30 daysImmediateNon-critical infrequent data
S3 Intelligent-TieringNoneImmediate–hoursUnknown or changing access patterns
S3 Glacier Instant90 daysMillisecondsArchive with instant retrieval
S3 Glacier Flexible90 daysMinutes–hoursArchive, flexible retrieval
S3 Glacier Deep Archive180 daysHoursLong-term compliance archive

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.

Related practice questions

Related DEA-C01 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Data Ingestion and Transformation practice questions

Practise DEA-C01 questions linked to Data Ingestion and Transformation.

Data Operations and Support practice questions

Practise DEA-C01 questions linked to Data Operations and Support.

Data Security and Governance practice questions

Practise DEA-C01 questions linked to Data Security and Governance.

Data Store Management practice questions

Practise DEA-C01 questions linked to Data Store Management.

DEA-C01 fundamentals practice questions

Practise DEA-C01 questions linked to DEA-C01 fundamentals.

DEA-C01 scenario practice questions

Practise DEA-C01 questions linked to DEA-C01 scenario.

DEA-C01 troubleshooting practice questions

Practise DEA-C01 questions linked to DEA-C01 troubleshooting.

Practice this exam

Start a free DEA-C01 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions20 questions30 questions50 questionsTimed 30
DEA-C01 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this DEA-C01 question test?

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: Increase the Lambda function timeout — The Lambda function is failing with a timeout error, which indicates that the function is taking longer to execute than the default timeout of 3 seconds. Increasing the Lambda function timeout allows the function to run longer and complete its processing of the JSON file and DynamoDB write operation without being prematurely terminated.

What should I do if I get this DEA-C01 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.

About these practice questions

Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Keep practising

More DEA-C01 practice questions

Browse all DEA-C01 questions →

Last reviewed: Jul 4, 2026

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

Sign in to join the discussion.

This DEA-C01 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 DEA-C01 exam.