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

1. What is a significant advantage of using a columnar store NoSQL database for analytical workloads?

A) High-speed transaction processing
B) Optimized query performance on large datasets
C) Efficient storage of hierarchical data
D) Real-time data synchronization

2. What ethical principle emphasizes that collected data should be used for its original intended purpose?

A) Transparency
B) Purpose limitation
C) Accountability
D) Data minimization

3. What is a characteristic of the Kerberos role in a Hadoop ecosystem?

A) Used for authentication and authorization
B) Bind-based authentication
C) Designed to access directory services
D) Secure user identification over insecure network

4. Which of the following are components of the Apache Spark Streaming architecture? (Select all that apply)

A) Worker node
B) Discretized streams (DStreams)
C) HDFS storage
D) Kafka topics
E) Driver node

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

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

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