• Online, Self-Paced
Course Description

Apache Spark is an open-source cluster-computing framework used for data science and it has become the de facto big data framework. In this Skillsoft Aspire course, you will explore how to analyze real datasets using the DataFrame API methods. Discover how to optimize operations using shared variables and combine data from multiple DataFrames using joins.

Learning Objectives

Accessing Data with Spark: Data Analysis Using the Spark DataFrame API

  • Course Overview
  • recognize the features that make Spark 2.x versions significantly faster than Spark 1.x
  • specify the reasons for using shared variables in your Spark application and distinguish between the two options available for sharing variables
  • create a Spark DataFrame from the contents of a CSV file and apply some simple transformations on the DataFrame
  • define a transformation to view a random sample of data from a large DataFrame
  • apply grouping and aggregation operations on a DataFrame to analyze categories of data in a dataset
  • use Matplotlib to visualize the contents of a Spark DataFrame
  • perform operations to prepare your dataset for analysis by trimming unnecessary columns and rows containing missing data
  • define and apply a generic transformation on a DataFrame
  • apply complex transformations on a DataFrame to extract meaningful information from a dataset
  • work with broadcast variables and perform a join operation with a DataFrame that has been broadcast
  • use a Spark accumulator as a counter
  • store the contents of a DataFrame in a text file for archiving or sharing
  • define and work with a custom accumulator to count a vector of values
  • perform different join operations on Spark DataFrames to combine data from multiple sources
  • analyze data using the DataFrame API

Framework Connections

The materials within this course focus on the Knowledge Skills and Abilities (KSAs) identified within the Specialty Areas listed below. Click to view Specialty Area details within the interactive National Cybersecurity Workforce Framework.

Feedback

If you would like to provide feedback for this course, please e-mail the NICCS SO at NICCS@hq.dhs.gov.