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EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:

1. A company needs to fill an opening for a key tactical data governance position. The new hire is to be a subject matter expert on customer data and ensure the data policies and standards are adhered to on a daily basis. This role bridges the gap between a data governance program and its execution.
What is a suitable job title for this role?

A) Data miner
B) Data engineer
C) Data steward
D) Data scientist

2. Refer to the exhibit.

Which shows a table named Student.
What changes must be made to the table in order to achieve 1NF?

A) Remove duplicate rows in the table
B) Split table into two tables named Student and DoB
C) Split table into two tables named Student and Zip
D) Make Zip the primary key in the table

3. What enables Apache Spark to process data more efficiently than Hadoop's MapReduce?

A) Intermediate processing data is always written to disk
B) Apache Flink is the compute engine
C) JobTracker functionality has been replaced by YARN
D) Data is cached in memory whenever possible

4. Which tool builds batch processing as a special case of stream data processing?

A) Apache Hive
B) Apache Spark
C) Apache Oozie
D) Apache Flink

5. Match each major support project of Hadoop with its definition.

Solutions: