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

1. What is a difference between Data Governance and Master Data Management (MDM)?

A) Data governance focuses mainly on IT practices.
MDM creates the rules and decisions for operational data processes.
B) Data governance is an informal system of decision making.
MDM is a formal system of decision making.
C) Data governance implementation involves people, policies, rules, and metrics.
MDM is done automatically with no interference.
D) Data Governance is a formalized system of decision making.
MDM is a comprehensive method to link all data elements to a common point of reference.

2. Which of the following are key roles in data governance? (Select all that apply)

A) Chief Information Officer (CIO)
B) Data Scientist
C) Data Steward
D) Data Analyst
E) Data Owner

3. What is a metadata management challenge?

A) Ensuring availability of source systems
B) Leveraging the information from distributed sources
C) Information sources are limited
D) Data corruption over time

4. What is an advantage of avoiding bias from the data?

A) Minimize transparency at the point of data collection
B) Reduce misuse of data and facilitate its transparency
C) Minimize Bias-Variance trade-off
D) Decrease trust between humans and machines

5. Which Apache project focuses on managing and governing metadata for Hadoop ecosystems?

A) Apache Ranger
B) Apache Hive
C) Apache Atlas
D) Apache HBase

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