Graded Quiz: Introduction To Data-Frames & SparkSQL » Week 4 » Introduction To Big Data With Spark And Hadoop

Q: Select the statements that are true about a Directed Acyclic Graph, known as a DAG.

Correct! RDDs are represented by the vertices of a DAG while the transformations and actions are represented by directed edges.

Q: Which function would you apply to create a dataset from a sequence?

Yes! Apply the toDS() function to create a dataset from a sequence.

Q: Which of the following features belong to Tungsten?

This answer is correct. Tungsten manages memory explicitly and does not rely on the JVM object model or garbage collection.

Q: Select the answer that lists the order in which a typical data engineer would perform operations on Apache Spark while adhering to best practices.

Yes! This is the correct order in which Spark performs Extract, Transform, and Load operations.

Q: Based on the lesson content, what data sources does Apache Spark SQL support natively?

Yes! This answer is correct. Spark SQL supports reading and writing data from Parquet files, and SparkSQL preserves the data schema.

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Final Exam

20 Questions Week 6

Q:

Select the statements that are true about a Directed Acyclic Graph, known as a DAG.

View Solution

Q:

Which function would you apply to create a dataset from a sequence?

View Solution

Q:

Which of the following features belong to Tungsten?

View Solution

Q:

Select the answer that lists the order in which a typical data engineer would perform operations on Apache Spark while adhering to best practices.

View Solution

Q:

Based on the lesson content, what data sources does Apache Spark SQL support natively?

View Solution

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