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

1. In Python, which type of operator is often used in conditional statements to perform Boolean operations?

A) Logical
B) Bitwise
C) Assignment
D) Arithmetic

2. In a relational database, what is a minimal set of attributes to uniquely identify a record in a table?

A) Super key
B) Primary key
C) Foreign key
D) Candidate key

3. In order for a table to be normalized in 4NF, what two conditions must be met?

A) Table is in 3NF
No dependencies exist
B) Table is in BCNF
No multi-valued dependencies exist
C) Table is in BCNF
Multi-valued depen
D) Table is in 3NF
No multi-valued dependencies exist

4. What are three programming languages supported by Apache Spark?

A) Python, C, and Scala
B) Python, R, and C++
C) PL/SQL, R, and Scala
D) Python, R, and Scala

5. 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

Solutions: