- A
The IAM role used by the application does not have s3:PutObject permission.
Why wrong: Missing 's3:PutObject' permission would cause an 'AccessDenied' error, not 'ResourceNotFoundException'.
- B
The S3 bucket ARN is incorrectly specified in the application configuration.
Correct. An incorrect S3 bucket name or ARN in the configuration causes the application to fail with 'ResourceNotFoundException' because the bucket cannot be located.
- C
The Flink application code specifies the wrong AWS Region for the S3 bucket.
Why wrong: Specifying the wrong region for the S3 bucket in Flink code typically results in a different error (e.g., cross-region access issues) but not 'ResourceNotFoundException'.
- D
The S3 bucket has versioning disabled.
Why wrong: Versioning disabled does not affect bucket existence; it would not cause a 'ResourceNotFoundException'.
DEA-C01 ResourceNotFoundException 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. A key principle to apply: resourceNotFoundException. 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 company uses Amazon Kinesis Data Analytics for Apache Flink to process streaming data. The application reads from a Kinesis data stream and writes results to an Amazon S3 bucket. Recently, the application has been failing with 'ResourceNotFoundException' for the S3 bucket. What is the MOST likely cause?
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 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
The S3 bucket ARN is incorrectly specified in the application configuration.
Option B is correct. The 'ResourceNotFoundException' for the S3 bucket indicates that the application cannot find the bucket. This is most likely due to an incorrectly specified bucket name or ARN in the application configuration. If the bucket name is misspelled or the ARN is malformed, the Kinesis Data Analytics application cannot resolve the bucket resource. Option A is incorrect because missing 's3:PutObject' permission would cause an 'AccessDenied' error, not 'ResourceNotFoundException'. Option C is incorrect because the AWS Region for S3 is determined by the bucket's location, and specifying a wrong region in Flink code would typically result in a different error (e.g., 'IllegalArgumentException' or cross-region access issues) but not 'ResourceNotFoundException'. Option D is incorrect because versioning is unrelated to bucket existence; disabling versioning does not cause a resource not found error.
Key principle: ResourceNotFoundException
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The IAM role used by the application does not have s3:PutObject permission.
Why it's wrong here
Missing 's3:PutObject' permission would cause an 'AccessDenied' error, not 'ResourceNotFoundException'.
- ✓
The S3 bucket ARN is incorrectly specified in the application configuration.
Why this is correct
Correct. An incorrect S3 bucket name or ARN in the configuration causes the application to fail with 'ResourceNotFoundException' because the bucket cannot be located.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
ResourceNotFoundException
- ✗
The Flink application code specifies the wrong AWS Region for the S3 bucket.
Why it's wrong here
Specifying the wrong region for the S3 bucket in Flink code typically results in a different error (e.g., cross-region access issues) but not 'ResourceNotFoundException'.
- ✗
The S3 bucket has versioning disabled.
Why it's wrong here
Versioning disabled does not affect bucket existence; it would not cause a 'ResourceNotFoundException'.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often confuse permission errors with resource-not-found errors. A missing IAM permission typically results in 'AccessDenied', not 'ResourceNotFoundException'.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- ResourceNotFoundException
- Kinesis Data Analytics for Apache Flink
- S3 bucket ARN
- IAM permissions vs. resource existence
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
ResourceNotFoundException
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
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
What to study next
Got this wrong? Here's your next step.
Review resourceNotFoundException, then practise related DEA-C01 questions on the same topic to reinforce the concept.
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Data Ingestion and Transformation — study guide chapter
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Ingestion and Transformation — This question tests Data Ingestion and Transformation — ResourceNotFoundException.
What is the correct answer to this question?
The correct answer is: The S3 bucket ARN is incorrectly specified in the application configuration. — Option B is correct. The 'ResourceNotFoundException' for the S3 bucket indicates that the application cannot find the bucket. This is most likely due to an incorrectly specified bucket name or ARN in the application configuration. If the bucket name is misspelled or the ARN is malformed, the Kinesis Data Analytics application cannot resolve the bucket resource. Option A is incorrect because missing 's3:PutObject' permission would cause an 'AccessDenied' error, not 'ResourceNotFoundException'. Option C is incorrect because the AWS Region for S3 is determined by the bucket's location, and specifying a wrong region in Flink code would typically result in a different error (e.g., 'IllegalArgumentException' or cross-region access issues) but not 'ResourceNotFoundException'. Option D is incorrect because versioning is unrelated to bucket existence; disabling versioning does not cause a resource not found error.
What should I do if I get this DEA-C01 question wrong?
Review resourceNotFoundException, then practise related DEA-C01 questions on the same topic to reinforce the concept.
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?
ResourceNotFoundException
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Last reviewed: Jun 20, 2026
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