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Cloudera CDP-3002 Exam Syllabus Topics:

Cloudera CDP Data Engineer - Certification Sample Questions:

1. 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) Manually document data lineage within the YAML configuration files.
B) Leverage the integrated lineage tracking capabilities of the Cloudera Data Engineering service.
C) Utilize custom scripting to track data movement between pipeline steps.
D) Integrate the service with a separate third-party lineage tracking tool.

2. In Spark, when is it most beneficial to use the repartitionByRange method?

A) When decreasing the number of partitions to reduce task scheduling overhead.
B) When sorting data within each partition by a specified column or set of columns is required.
C) When the data is highly skewed and a uniform distribution of data across partitions is required.
D) When minimizing network traffic during shuffle operations is the primary concern.

3. For scripting and automation purposes, how can Cloudera's CLI tools be integrated into administrative workflows?

A) By creating custom plugins for web browsers to manage Cloudera services.
B) CLI tools cannot be integrated into administrative workflows; they are only for interactive use.
C) Incorporating CLI commands into shell scripts or automation tools like Ansible, Chef, or Puppet.
D) Using exclusively manual CLI commands for each task without automation.

4. Your Airflow DAG involves tasks that require access to specific resources like databases or external services. How can you ensure these resources are available and properly configured for the DAG execution?

A) Hardcode connection details (credentials, URLs) directly within the DAG code.
B) Grant everyone access to all resources to avoid potential configuration issues.
C) Utilize Airflow connections to store and manage resource details securely.
D) Implement custom logic within each task to dynamically discover and connect to resources.

5. Which of the following is true about persisting RDDs in Apache Spark?
A Persisting an RDD in memory allows for faster access but increases the risk of data loss.

A) It is not possible to persist an RDD using a combination of memory and disk.
B) Persisting an RDD to disk is generally recommended for all RDDs to prevent data loss.
C) Using MEMORY_ONLY_SER storage level reduces memory usage but increases CPU usage due to serialization.

Solutions: