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Cloudera CDP-3002 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Governance and Security | - Security frameworks
|
| Data Storage and Modeling | - Data modeling
|
| Platform Operations | - Cluster and workload management
|
| Data Processing and Transformation | - SQL analytics engines
|
| Data Ingestion and Integration | - Batch and streaming ingestion
|
Cloudera CDP Data Engineer - Certification Sample Questions:
Question 1
For iterative machine learning algorithms in Spark, which caching level minimizes the trade-off between computation time and storage efficiency?
A. DISK ONLY
B. MEMORY ONLY
C. MEMORY AND DISK SER
D. MEMORY ONLY SER
Question 2
Your team is integrating PySpark with a MySQL database. You need to read data from a table named 'employees'. Which of the following PySpark code snippets correctly accomplishes this task?
A. 
B. 
C. 
D. 
Question 3
How can you use Apache Airflow to ensure a data quality check stops the workflow if it fails, without failing subsequent tasks that are not dependent on the data quality check?
A. Use the ShortCircuitOperator with a condition that returns False if the check fails.
B. Use the BranchPythonOperator to split the workflow conditionally.
C. Set trigger_rule='all_done' on subsequent tasks.
D. Use the TaskGroup with trigger_rule='one_failed' for the data quality check task.
Question 4
In the context of Cloudera's SQL engines, what does the presence of a "Broadcast Hash Join" in an Explain Plan suggest about query performance?
A. It suggests that the join operation might be a performance bottleneck for large datasets
B. It indicates an optimal use of network resources
C. It implies that no indexing is used in the join operation
D. It means that the query will execute faster than with any other join method
Question 5
Which of the following is NOT a factor considered by the Optimization Framework when optimizing a query?
A. Network latency between nodes
B. The phase of the moon
C. Data skewness
D. User-defined functions (UDFs) complexity
Solutions:
| Question 1 Answer: D | Question 2 Answer: D | Question 3 Answer: A | Question 4 Answer: A | Question 5 Answer: B |
