Free Practice Cloudera CDP-3002 Exam Questions 2025

Stay ahead with 100% Free CDP Data Engineer CDP-3002 Dumps Practice Questions

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Total 300 Questions | Updated On: Jun 05, 2025

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Question 1

What is a common technique used in Cloudera to improve the performance of SQL queries through optimization?

A : Query caching

B : Load balancing

C : Query rewriting

D : Data sharding

Answer: C

Question 2

How does partition pruning enhance query performance in a Cloudera environment?

A : By compressing data partitions

B : By merging partitions

C : By limiting the number of partitions scanned

D : By creating additional partitions

Answer: C

Question 3

How can you filter rows in a Spark DataFrame based on a condition?

A : orderBy()

B : groupBy()

C : filter()

D : select()

Answer: C

Question 4

Which method is recommended to avoid schema inference overhead in Spark SQL queries?

A : Use spark.conf.set("spark.sql.schema", schema)

B : Rely on default schema inference

C : Use DataFrameReader.option("schema", schema) to specify a schema

D : Use spark.sql("SET schema = schema")

Answer: C

Question 5

Which method allows you to debug a DAG in Apache Airflow?

A : By using the Airflow CLI

B : By restarting the Airflow server

C : By checking the Airflow Web UI logs

D : By editing the DAG file directly

Answer: C

Page: 1 / 60

Total 300 Questions | Updated On: Jun 05, 2025

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