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Cloudera CDP-3002 Exam Syllabus Topics:

Cloudera CDP Data Engineer - Certification Sample Questions:

Question 1

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. Rebuild the Iceberg metadata table
D. Rewrite manifest files

Question 2

You're building a large and complex ETL pipeline with numerous tasks and dependencies. What are some best practices to ensure its maintainability and understandability?

A. Break down the pipeline into smaller, modular sub-DAGs with well-defined functionalities.
B. Implement extensive logging within each task to capture detailed execution information.
C. Use clear and descriptive names for tasks, operators, variables, and DAG comments throughout the code.
D. All of the above

Question 3

You're working with a large DAG that contains numerous tasks and complex dependencies. How can you improve the DAG's readability and maintainability?

A. Utilize comments sparingly within the DAG code, as the logic should be self-explanatory.
B. Break down the DAG into smaller sub-DAGs with well-defined functionalities and clear naming conventions.
C. Implement extensive logging within each task, regardless of its purpose, to capture detailed execution information.
D. Use cryptic and abbreviated names for tasks and variables, assuming everyone understands the context.

Question 4

Your team is deploying a Spark application on a Kubernetes cluster. To ensure high availability, you need to decide how many executor instances to configure. Which of the following configurations in your PySpark application would correctly set the number of executor instances?

A.

B.

C.

D.

Question 5

Which of the following commands is used to install PySpark in your development environment?

A. brew install pyspark
B. pip install pyspark
C. yarn add pyspark
D. npm install pyspark

Solutions: