Analyzing Big Data in R using Apache Spark Cognitive Class Exam Answer (💯Correct)

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Here, you will find Analyzing Big Data in R using Apache Spark Exam Answers in Bold Color which are given below.

These answers are updated recently and are 100% correctanswers of all modules and final exam answers of Analyzing Big Data in R using Apache Spark from Cognitive Class Free Certification Course.

Course NameAnalyzing Big Data in R using Apache Spark
SkillOnline Education

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Module 1: Introduction to SparkR

Question 1: What shells are available for running SparkR??

  • Spark-shell
  • SparkSQL shell
  • SparkR shell
  • RSpark shell
  • None of the options is correct

Question 2: What is the entry point into SparkR?

  • SRContext
  • SparkContext
  • RContext
  • SQLContext

Question 3: When would you need to call sparkR.init?

  • using the R shell
  • using the SR-shell
  • using the SparkR shell
  • using the Spark-shell

Module 2: Data manipulation in SparkR

Question 1: dataframes make use of Spark RDDs

  • False
  • True

Question 2: You need read.df to create dataframes from data sources?

  • True
  • False

Question 3: What does the groupBy function output??

  • A AggregateOrder object
  • A GroupedData object
  • A OrderBy object
  • A GroupBy object

Module3: Machine learning in Spark R

Question 1: What is the goal of MLlib?

  • Integration of machine learning into SparkSQL
  • To make practical machine learning scalable and easy
  • Visualization of Machine Learning in SparkR
  • Provide a development workbench for machine learning
  • All of the options are correct

Question 2: What would you use to create plots? check all that apply

  • pandas
  • Multiplot
  • Ggplot2
  • matplotlib
  • all of the above are correct

Question 3: Spark MLlib is a module of Apache Spark

  • False
  • True

Analyzing Big Data in R using Apache Spark Final Exam Answers Cognitive Class

Question 1: Which of these are NOT characteristics of Spark R?

  • it supports distributed machine learning
  • it provides a distributed data frame implementation
  • is a cluster computing framework
  • a light-weight front end to use Apache Spark from R
  • None of the options is correct

Question 2: True or false? The client connection to the Spark execution environment is created by the shell for users using Spark:

  • True
  • False

Question 3: Which of the following are not features of Spark SQL?

  • performs extra optimizations
  • works with RDDs
  • is a distributed SQL engine
  • is a Spark module for structured data processing
  • None of the options is correct

Question 4: True or false? Select returns a SparkR dataframe:

  • False
  • True

Question 5: SparkR defines the following aggregation functions:

  • sumDistinct
  • Sum
  • count
  • min
  • All of the options are correct

Question 6: We can use SparkR sql function using the sqlContext as follows:

  • head(sql(sqlContext, “SELECT * FROM cars WHERE cyl > 6”))
  • SparkR:head(sql(sqlContext, “SELECT * FROM cars WHERE cyl > 6”))
  • SparkR::head(sql(sqlContext, “SELECT * FROM cars WHERE cyl > 6”))
  • SparkR(head(sql(sqlContext, “SELECT * FROM cars WHERE cyl > 6”)))
  • None of the options is correct

Question 7: Which of the following are pipeline components?

  • Transformers
  • Estimators
  • Pipeline
  • Parameter
  • All of the options are correct

Question 8: Which of the following is NOT one of the steps in implementing a GLM in SparkR:

  • Evaluate the model
  • Train the model
  • Implement model
  • Prepare and load data
  • All of the options are correct

Question 9: True or false? Spark MLlib is a module SparkR to provide distributed machine learning algorithms.

  • True
  • False


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Can I get a Printable Certificate?

Yes, you will receive a Analyzing Big Data in R using Apache Spark Certificate of Learning after successful completion of course. You can download a printed certificate or share completion certificates with others and add them to your LinkedIn profile.

Why should you choose online courses?

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Yes Analyzing Big Data in R using Apache Spark Course is totally free for you. The only thing is needed i.e. your dedication towards learning this course.

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