Cloudera CDP Data Engineer - Certification : CDP-3002

  • Exam Code: CDP-3002
  • Exam Name: CDP Data Engineer - Certification Exam
  • Q & A: 320 Questions and Answers

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Cloudera CDP-3002 Exam Syllabus Topics:

SectionObjectives
Data Storage and Modeling- Data lake architecture
  • 1. Partitioning and file formats (Parquet, ORC)
    • 2. HDFS / cloud object storage concepts
      - Data modeling
      • 1. Schema design for analytics
        • 2. Dimensional modeling concepts
          Data Governance and Security- Security frameworks
          • 1. Ranger / Sentry policies
            • 2. Authentication and authorization in CDP
              - Data governance
              • 1. Data lineage and auditing
                • 2. Metadata management
                  Data Ingestion and Integration- Batch and streaming ingestion
                  • 1. Data ingestion patterns in CDP
                    • 2. Apache NiFi / Kafka ingestion concepts
                      - Data movement and pipelines
                      • 1. ETL/ELT workflows
                        • 2. Data flow orchestration
                          Data Processing and Transformation- SQL analytics engines
                          • 1. Data transformation best practices
                            • 2. Hive / Impala query optimization
                              - Spark processing
                              • 1. Spark SQL and DataFrames
                                • 2. Distributed processing concepts
                                  Platform Operations- Cluster and workload management
                                  • 1. Resource management and scheduling
                                    • 2. Monitoring and troubleshooting

                                      Cloudera CDP Data Engineer - Certification Sample Questions:

                                      Question #1

                                      When optimizing join operations in a distributed data processing environment, why is it important to co-locate join keys?

                                      • A. To increase the storage capacity required for join operations
                                      • B. To enhance data encryption methods for secure joins
                                      • C. To ensure data integrity by preventing data loss during network transmission
                                      • D. To minimize data shuffle by ensuring related data is on the same node
                                      Reveal Solution  Discussion  0

                                      Correct Answer: D  🗳️

                                      Explanation: Only visible for TorrentVCE members. You can sign-up / login (it's free).

                                      Question #2

                                      After running a PySpark job, you want to analyze the performance and identify potential bottlenecks. Which tool should you use for this purpose?

                                      • A. PySpark DataFrame API.
                                      • B. Hadoop YARN ResourceManager.
                                      • C. Spark Web I-Jl.
                                      • D. PySpark SQL CLI.
                                      Reveal Solution  Discussion  0

                                      Correct Answer: C  🗳️

                                      Explanation: Only visible for TorrentVCE members. You can sign-up / login (it's free).

                                      Question #3

                                      What is the primary consideration when choosing the number of buckets in a Hive table?

                                      • A. The number of nodes in the Hadoop cluster
                                      • B. The total storage capacity of the HDFS cluster
                                      • C. The expected distribution of data across the bucketing column
                                      • D. The number of rows in each partition
                                      Reveal Solution  Discussion  0

                                      Correct Answer: C  🗳️

                                      Explanation: Only visible for TorrentVCE members. You can sign-up / login (it's free).

                                      Question #4

                                      What is the recommended way to handle dependencies between data quality checks in Apache Airflow to ensure that checks are performed in a specific sequence?

                                      • A. Use the depends_on_past parameter in each data quality check task.
                                      • B. Explicitly set task dependencies using the set_upstream or set_downstream methods.
                                      • C. Implement each data quality check as a separate DAG.
                                      • D. Use the SequentialExecutor for the Airflow environment.
                                      Reveal Solution  Discussion  0

                                      Correct Answer: B  🗳️

                                      Explanation: Only visible for TorrentVCE members. You can sign-up / login (it's free).

                                      Question #5

                                      Which strategy is most effective for managing schema evolution in a big data application that relies on schema inference?

                                      • A. Manually updating the inferred schema for each data ingestion
                                      • B. Integrating schema registry services that track and manage schema versions
                                      • C. Completely disabling schema inference and relying on static schemas
                                      • D. Using a single version of the schema for all data, regardless of changes
                                      Reveal Solution  Discussion  0

                                      Correct Answer: B  🗳️

                                      Explanation: Only visible for TorrentVCE members. You can sign-up / login (it's free).

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