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

2. In Python, which primitive data type covers real rational and irrational numbers?

A) Integer
B) Float
C) String
D) Boolean

3. What is a data pipeline best practice related to Extract-Transform-Load (ETL) jobs?

A) ETL jobs should be flexible to source data changes such as new variables or attributes.
B) A failed ETL job should be re-run immediately without taking any corrective actions.
C) ETL jobs should be manually executed and monitored to ensure the highest quality.
D) A failed ETL job should always be marked as completed so that any other scheduled jobs can execute.

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

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

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

A) Spark HBase
B) Spark Streaming
C) Spark Cassandra
D) Spark SQL
E) Spark Core

Solutions: