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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 characteristic of a relational database ensures that each row in a table is uniquely identifiable?

A) Indexing
B) Joins
C) Primary key
D) Foreign key

2. Which skill is crucial for a data engineer to effectively manage and optimize large-scale data processing systems?

A) Data analysis
B) Front-end development
C) Graphic design
D) Cloud computing

3. 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) ValidationFailureHandler
C) Eval
D) Validator

4. In an Apache Spark Streaming environment, what acts as an entry point to the streaming system and provides methods to create and transform DStreams?

A) StreamingContext
B) Spark Core
C) Receiver
D) Streams API

5. Match each database type with its description.

Solutions: