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

1. Which of the following accurately describes Apache Storm? (Select all that apply)

A) A machine learning library
B) A batch processing framework
C) A distributed stream processing system
D) A file storage system

2. In a relational database, what is a minimal set of attributes to uniquely identify a record in a table?

A) Foreign key
B) Primary key
C) Candidate key
D) Super key

3. Which Cassandra data type represents a collection of key-value pairs, and is represented in curly brackets ({, }) and colon (:)?

A) UUID
B) Map
C) Set
D) List

4. What step in a query plan determines the best execution path for the provided query?

A) Execution
B) Optimizer
C) Parser
D) Algebrizer

5. Which tool provides fine-grained access control and security for Hadoop components?

A) Apache HBase
B) Apache Ranger
C) Apache Atlas
D) Apache Knox

Solutions: