PySpark and AWS: Master Big Data with PySpark and AWS - Solution (Average)

PySpark and AWS: Master Big Data with PySpark and AWS - Solution (Average)

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Hard

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The video tutorial guides viewers through the process of calculating average scores from a dataset using Spark. It begins with a problem statement, followed by data preparation and environment setup. The tutorial then explains how to implement a mapper function to create key-value pairs, followed by using reduce by key for aggregation. Finally, it demonstrates calculating averages for each month and concludes with a summary of the solution.

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4 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

How do we handle the conversion of ratings to perform aggregations?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the role of the Lambda function in the reduction process?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the expected output after running the final aggregation?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Summarize the overall solution provided in the video.

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