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

1. What is the purpose of Apache Airflow?

A) Workflow automation
B) Data processing
C) Data storage
D) Data visualization

2. What is the primary storage system used by the Hadoop ecosystem?

A) HDFS
B) Amazon S3
C) Cassandra
D) MongoDB

3. Which tools are used for security considerations in the Hadoop ecosystem? (Select all that apply)

A) Apache Ranger
B) Apache Knox
C) Apache Atlas
D) Apache Flink
E) Apache Sentry

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. What is the main programming language supported by Apache Spark?

A) Ruby
B) Python
C) Java
D) C++

Solutions: