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

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

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

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

2. Which tool builds batch processing as a special case of stream data processing?

A) Apache Oozie
B) Apache Flink
C) Apache Spark
D) Apache Hive

3. What is a common use case for a document-based NoSQL database like MongoDB?

A) Performing complex SQL queries
B) Storing structured tabular data
C) Tracking real-time data streams
D) Managing hierarchical data

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

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

5. What is a challenge of managing data pipelines?

A) Ensuring that proper backups are available in the event of a data corruption
B) Monitoring is simply accomplished by the end users reporting any data quality issues
C) Making the data volume consistent, or at least easily predictable
D) Guaranteeing there is no personally identifiable information in the extracted data

Solutions: