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EMC D-DS-OP-23 Exam Syllabus Topics:

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

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

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

2. What is the primary advantage of using dictionaries in Python data pipelines?

A) Dictionaries allow duplicate values
B) Dictionaries maintain element order
C) Dictionaries support mathematical operations
D) Dictionaries offer O(1) lookup time

3. Which Python library formats data into dataframes?

A) scikit-learn
B) NumPy
C) Pandas
D) NLTK

4. What step in a query plan determines the best execution path for the provided query?

A) Optimizer
B) Algebrizer
C) Execution
D) Parser

5. 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

Solutions: