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Guide for DEA-C01: AWS Certified Data Engineer - Associate

Quiz DEA-C01: AWS Certified Data Engineer - Associate

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Quiz

1/10
Data Ingestion and Transformation
Your organization needs to stream real-time clickstream data from a web application into a data lake for analysis. The data arrives at approximately 100 Mbps with frequent spikes. Which service should you use to capture this streaming data reliably?
Select the answer
1 correct answer
A.
AWS Lambda with S3 direct writes
B.
Amazon Kinesis Data Streams
C.
Amazon MSK (Managed Streaming for Kafka)
D.
AWS Glue streaming jobs

Quiz

2/10
Data Store Management
You have a petabyte-scale data warehouse supporting analytical queries from business intelligence tools. Queries often filter on specific date ranges and need sub-second response times. Which Amazon service is best suited for this workload?
Select the answer
1 correct answer
A.
Amazon DynamoDB with GSI on date attributes
B.
Amazon Redshift with distribution and sort keys on dates
C.
Amazon RDS for PostgreSQL with aggressive indexing
D.
Amazon S3 with Athena for query optimization

Quiz

3/10
Data Operations and Support
Your data pipeline orchestrates 50 interdependent jobs using a custom-built scheduler that monitors task completion via logs. Maintenance is becoming difficult. What AWS service should replace this custom solution?
Select the answer
1 correct answer
A.
Amazon EventBridge with event-driven automation
B.
AWS Step Functions with state machine workflows
C.
AWS Lambda with CloudWatch Events
D.
AWS Systems Manager Automation

Quiz

4/10
Data Security and Governance
Your organization stores sensitive customer personally identifiable information (PII) in S3. You must prevent accidental exposure while allowing authorized teams to access the data. Which combination of services provides the strongest governance controls?
Select the answer
1 correct answer
A.
S3 Block Public Access + IAM policies + CloudTrail logging
B.
AWS Lake Formation with column-level permissions + AWS Glue encryption
C.
S3 Server-Side Encryption (SSE) + S3 Access Logging + VPC endpoints
D.
S3 Object Lock + IAM bucket policies + CloudWatch alarms

Quiz

5/10
Data Ingestion and Transformation
You need to move 500 GB of data from an on-premises PostgreSQL database to AWS S3 daily. The network link has inconsistent latency. Which service minimizes transformation latency and operational overhead?
Select the answer
1 correct answer
A.
AWS DMS (Database Migration Service) replication with ongoing CDC
B.
Custom EC2 instance running pg_dump scripts
C.
AWS DataSync with automated scheduling
D.
AWS Snowball for one-time migration

Quiz

6/10
Data Store Management
Your application stores session data requiring very fast lookups and millisecond-level expiration of old records. You need to minimize operational complexity. Which service is optimal?
Select the answer
1 correct answer
A.
Amazon DynamoDB with TTL (Time to Live)
B.
Amazon ElastiCache for Redis with EXPIRE command
C.
Amazon RDS MySQL with scheduled DELETE jobs
D.
Amazon S3 with lifecycle policies

Quiz

7/10
Data Operations and Support
Your data transformation job occasionally fails due to malformed input records. You need to detect failures automatically and trigger corrective workflows. Which approach is most scalable?
Select the answer
1 correct answer
A.
CloudWatch alarms on Step Functions execution failures routing to SNS
B.
Custom Lambda function monitoring CloudWatch Logs for error patterns
C.
EventBridge rules capturing failed Step Functions executions triggering SQS for manual review
D.
Manual log review with email notifications

Quiz

8/10
Data Security and Governance
Your organization requires that all data encryption keys are generated and stored within AWS, with audit trails of key usage. Which service meets these requirements?
Select the answer
1 correct answer
A.
AWS KMS (Key Management Service) with CloudTrail logging
B.
AWS Secrets Manager with customer-managed keys
C.
TDE (Transparent Data Encryption) in Amazon RDS
D.
S3 default encryption with AWS-managed keys

Quiz

9/10
Data Ingestion and Transformation
You are building an ETL pipeline to transform complex nested JSON from an API into normalized Parquet files daily. Which service provides the most flexibility for schema mapping?
Select the answer
1 correct answer
A.
AWS Glue with custom PySpark scripts
B.
AWS Lake Formation automated ETL
C.
Amazon EMR with Spark jobs
D.
AWS Lambda with Pandas layer

Quiz

10/10
Data Store Management
Your organization maintains a central data repository accessed by multiple departments, each needing different views and aggregations of the same underlying data. Which design approach minimizes data duplication?
Select the answer
1 correct answer
A.
Redshift views with materialized aggregations per department
B.
Multiple S3 data lakes, one per department, with replication
C.
DynamoDB with department-specific projection expressions
D.
RDS with separate databases per department
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Info quiz:

  • Quiz name:DEA-C01: AWS Certified Data Engineer - Associate
  • Total number of questions:200
  • Number of questions for the test:50
  • Pass score:80%

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