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

1. In Python, which primitive data type covers real rational and irrational numbers?

A) Boolean
B) String
C) Float
D) Integer

2. What is characteristic of HBase?

A) Data warehouse infrastructure that can compile SQL queries and run the jobs in cluster
B) Tool that performs real-time write operations on large datasets using Key/Value pairs
C) High-level language platform for analyzing and querying large data sets stored in HDFS
D) Tool that combines SQL, streaming, and complex analytics

3. What is a primary task of a data engineer during a data analytics project?

A) Installing, configuring, testing, and maintaining operating systems, application software, and system management tools
B) Preparing the Big Data environment to be utilized by data scientists and other business stakeholders
C) Designing and integrating infrastructure, analyzing algorithms, modifying source code, and writing system instructions
D) Ensuring the successful initiation, planning, design, execution, monitoring, controlling, and closure of the project

4. What is metadata in the context of data governance?

A) Data access logs
B) Data quality metrics
C) Data encryption keys
D) Data about data

5. Which Sqoop validation type checks the row counts between the source and target databases, and tries to ensure that the counts match?

A) Validator
B) Eval
C) ValidationFailureHandler
D) ValidationThreshold

Solutions: