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

1. In order for a table to be normalized in 4NF, what two conditions must be met?

A) Table is in 3NF
No multi-valued dependencies exist
B) Table is in 3NF
No dependencies exist
C) Table is in BCNF
No multi-valued dependencies exist
D) Table is in BCNF
Multi-valued depen

2. What type of expertise is required to be an effective data engineer?

A) Big Data tools
B) Project management
C) Business analysis
D) Accounting

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

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

4. You are designing a genomics analysis application and need to set up an Apache Oozie job to execute a single MapReduce workflow at 12:00 AM EST every day.
Which Oozie job type should you implement?

A) Coordinator
B) JobTracker
C) Workflow
D) Bundle

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

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

Solutions: