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

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

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

2. 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 3NF
No multi-valued dependencies exist
C) Table is in BCNF
No multi-valued dependencies exist
D) Table is in BCNF
Multi-valued depen

3. Which of the following are components of the ETL process? (Select all that apply)

A) Loading
B) Transmission
C) Transformation
D) Visualization
E) Extraction

4. Which of the following are security considerations when using cloud services with Hadoop? (Select all that apply)

A) Data encryption in transit and at rest
B) Regularly updating software and patches
C) Multi-factor authentication
D) Storing all data on public GitHub repositories

5. Match each database type with its description.

Solutions: