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PySpark Assessment Test

This PySpark test evaluates candidates' proficiency in integrating with the Python ecosystem, understanding transformations and actions, and mastering PySpark basics. It covers data sources and formats, performance optimization, Apache Spark fundamentals, debugging, streaming, DataFrames, Spark SQL, and MLlib for machine learning.

Proficiency Level
Beginner-Expert
Experience
0-8 years
Duration
60 mins
WeCP Verified
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Subject Matter Expert
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Use Case

  • Evaluates understanding of PySpark DataFrame and RDD methods.
  • Assesses knowledge in PySpark MLlib and Structured Streaming.
  • Identifies skills in PySpark performance optimization and debugging.
  • Helps pinpoint candidates proficient in Apache Spark Basics.

Skills Covered

Apache Spark Basics
PySpark Basics
DataFrames and Spark SQL
Data Sources and Formats
Transformations and Actions
Machine Learning with MLlib
Streaming with Structured Streaming
+3 more

About

PySpark Assessment Test

This PySpark test is designed to assess candidates' expertise in integrating with the Python ecosystem, executing transformations and actions, and grasping PySpark fundamentals. It evaluates knowledge of various data sources and formats, performance optimization techniques, and core Apache Spark concepts. Additionally, the test covers debugging and troubleshooting skills, streaming with Structured Streaming, and proficiency in using DataFrames and Spark SQL. Candidates will also be tested on their ability to implement machine learning models using MLlib, ensuring a comprehensive evaluation of their PySpark capabilities.

Target Audience

Data Engineer (PySpark), Big Data Developer

Prerequisites
  • Strong understanding of Python programming language
  • Familiarity with Apache Spark architecture and components
  • Experience with data manipulation and transformation
  • Knowledge of data formats such as JSON, CSV, Parquet
  • Ability to optimize performance in distributed computing
  • Proficiency in debugging and troubleshooting PySpark applications
  • Understanding of machine learning concepts and MLlib
Test Overview
Duration
60 mins
Questions
10
Passing Score
70%

Questions

Understanding PySpark DataFrame Methods
Apache Spark
Apache Spark
PySpark
Data Engineering
Big Data
What this question evaluates
This question assesses the candidate's understanding of PySpark DataFrame methods and their ability to retrieve specific rows as a list of Row objects.
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
PySpark RDD Transformation
PySpark
PySpark
RDD
Distributed Computing
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
PySpark DataFrame Operations
DataFrames
DataFrames
Spark SQL
PySpark
Big Data
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
PySpark CSV to DataFrame
PySpark
PySpark
DataFrame
CSV
Schema
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Understanding RDD Transformations in PySpark
Python
Python
PySpark
RDD
Caching
Big Data
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
PySpark MLlib Feature Transformation
Machine Learning
Machine Learning
PySpark
MLlib
Feature Transformation
Hiring
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Understanding PySpark Structured Streaming 'watermark' Parameter
pyspark
pyspark
structured streaming
watermark
big data
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
PySpark Performance Optimization
Performance Optimization
Performance Optimization
PySpark
Big Data
Distributed Computing
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Understanding PySpark RDDs
PySpark
PySpark
RDD
Distributed Computing
Big Data
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Optimizing PySpark Job Execution Time
PySpark
PySpark
big data
distributed computing
performance
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
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Zanele Dlamini
Candidate
Passed
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AI Summary
Skills Performance
Score
Apache Spark Basics
87%
PySpark Basics
80%
DataFrames and Spark SQL
85%
Data Sources and Formats
82%
Areas of Improvement
Review
Data Sources and Formats
Practice
PySpark Basics
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Action Items
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