DEA-C01 Data Security and Governance Practice Question
Exhibit
Refer to the exhibit.
CREATE EXTERNAL TABLE IF NOT EXISTS mydb.sales (
id INT,
product STRING,
price DOUBLE
)
ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.OpenCSVSerde'
LOCATION 's3://my-bucket/sales-data/'
TBLPROPERTIES ('has_encrypted_data'='false');Refer to the exhibit. A data engineer creates an external table in AWS Glue Data Catalog pointing to an S3 bucket that contains encrypted objects (SSE-S3). The CREATE TABLE statement fails with an error. What change should be made to fix the error?
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
✓
Set 'has_encrypted_data' to 'true'.
When creating an external table in AWS Glue Data Catalog that references an S3 bucket with SSE-S3 encrypted objects, you must set the table property 'has_encrypted_data' to 'true'. This allows Glue to properly read the encrypted data. Option A is unnecessary; Option B is not required for encryption; Option C is for SSE-KMS, not SSE-S3. Therefore, Option D is the correct change.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Change the SERDE to 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'.
Why it's wrong here
The SERDE is fine for CSV.
- ✗
Add 'aws_iam_role' as a table property.
Why it's wrong here
IAM role is for Athena, not for this DDL.
- ✗
Include the KMS key ARN in the LOCATION.
Why it's wrong here
SSE-S3 does not use KMS keys.
- ✓
Set 'has_encrypted_data' to 'true'.
Why this is correct
The property tells the catalog that data is encrypted.
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 |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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