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Cloudera CDP Data Engineer - Certification Sample Questions:
1. Which of the following commands is used to install PySpark in your development environment?
A) npm install pyspark
B) yarn add pyspark
C) brew install pyspark
D) pip install pyspark
2. Describe how you would implement a data lineage solution within the Cloudera Data Engineering service to track the origin and flow of data throughout your data pipelines.
A) Leverage the integrated lineage tracking capabilities of the Cloudera Data Engineering service.
B) Utilize custom scripting to track data movement between pipeline steps.
C) Manually document data lineage within the YAML configuration files.
D) Integrate the service with a separate third-party lineage tracking tool.
3. You notice a significant performance overhead when persisting a large RDD to disk. What potential factors could contribute to this, and how can you mitigate them?
A) All of the above
B) Inefficient serialization format for the RDD data
C) Insufficient disk space on the cluster nodes
D) Using HDFS as the storage location instead of local disks
4. Which Airflow component is responsible for executing task instances in a distributed manner?
A) Scheduler
B) Executor
C) Webserver
D) Worker
5. You notice degraded read performance on an Iceberg table after many updates and deletes. What maintenance task should you perform to improve this?
A) Compact data files
B) Delete old snapshots
C) Rewrite manifest files
D) Rebuild the Iceberg metadata table
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A | Question # 3 Answer: A | Question # 4 Answer: B | Question # 5 Answer: C |
