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

1. Which feature of Apache Kafka makes it suitable for handling high-throughput data streams?

A) Static schema enforcement
B) In-memory data storage
C) Partitioning and replication
D) Only supports batch processing

2. What is a metadata management challenge?

A) Data corruption over time
B) Information sources are limited
C) Leveraging the information from distributed sources
D) Ensuring availability of source systems

3. In Python, which data type is one dimensional and immutable?

A) List
B) Set
C) Tuple
D) Array

4. What are three programming languages supported by Apache Spark?

A) Python, R, and Scala
B) Python, R, and C++
C) PL/SQL, R, and Scala
D) Python, C, and Scala

5. 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

Solutions: