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

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

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

2. What is the default replication factor for HDFS?

A) 6
B) 2
C) 4
D) 3

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

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

4. What is the purpose of memory management in Apache Flink?

A) Control how much memory the runtime operations use
B) Ensure no disk space is ever required
C) Eliminate the need for serialization of the data
D) Convert all of the data into Java objects

5. What is metadata in the context of data governance?

A) Data access logs
B) Data about data
C) Data encryption keys
D) Data quality metrics

Solutions: