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

1. What is a typical task of a data engineer during a data analytics project?

A) Presenting financial benefits to executive stakeholders
B) Exploring and examining data to find hidden patterns
C) Planning and performing A/B testing
D) Transforming data into a format that can be easily analyzed

2. In Python, which type of non-linear list always has a common root?

A) Queues
B) Stacks
C) Trees
D) Graphs

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

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

4. What enables Pravega to rapidly ingest streaming data into durable storage?

A) Append-only logs
B) Apache Spark
C) Relational database schema
D) MongoDB

5. What is the primary use of sets in Python?

A) Storing hierarchical data
B) Storing ordered sequences
C) Storing key-value pairs
D) Storing unique elements

Solutions: