MapReduce Online Assessment Test

Candidates Assessed


Organizations Served


iMocha’s MapReduce online test is the ideal pre-hire test for recruiters and hiring managers to assess candidates objectively. This test is useful for hiring a Hadoop Developer in MapReduce and Big Data Developer in MapReduce. Our test helps to reduce hiring cost by 40%.

About MapReduce Online Assessment Test

MapReduce online test helps recruiters and hiring managers to assess the skills of candidates before an interview. MapReduce is a programming model and is useful in processing large and huge data sets in parallel with large clusters of a commodity in a reliable and tolerant manner. Map Reduce concept is simple to understand for those who are familiar with cluster data processing solutions. This MapReduce skill test is specially designed to check the application and practical skills of a MapReduce developer – as per Industry Standards. 

MapReduce pre-hiring test enables employers and recruiters to identify Big Data - MapReduce developers by evaluating working skills and job readiness. For this reason, the emphasis is laid upon evaluating the knowledge of applied skills gained through real work experience, rather than theoretical knowledge.

Are you a jobseeker looking to sharpen your skills?

Test Summary

Map Reduce interview test is designed by our subject matter experts to analyze the job skills of applicants and their knowledge of MapReduce. Using powerful reporting, you can have a detailed analysis of the test results to help you make a better hiring decision and predict the candidate’s performance.

MapReduce Assessment Test may contain MCQ's (Multiple Choice Questions), MAQ's (Multiple Answer Questions), Fill in the Blanks, Descriptive, Whiteboard Questions, Audio / Video Questions, AI-LogicBox, Coding Simulations, True or False Questions, etc.

Test Duration: 35 minutes

No. of Questions: 12

Level of Expertise: Entry/Mid/Expert

Useful for hiring

  • Hadoop Developer - MapReduce
  • Big Data Developer - MapReduce

Topics Covered

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File System Counter

iMocha’s MapReduce online test helps recruiters and hiring managers to evaluate candidate’s understanding about file system counters which collects information like several bytes read and written by the file system

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Hadoop Supplied Interfaces

Our test assesses candidate’s knowledge about supplied interfaces in Hadoop

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MapReduce Version 2 Process

This test evaluates candidate’s understanding about MapReduce Version 2 Process (MRV2)

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MapReduce Job methods

Our MapReduce assessment test helps recruiters and hiring managers to gauge candidate’s knowledge about Job methods in MapReduce which splits the input data-set into independent chunks to process map tasks in parallel manner

Sample Questions

Choose from our 100,000+ question library or add your own questions to make powerful custom tests

Question types:

Multiple Option





Q 1. How many maps can run parallelism per node?

Question types:

Multiple Option





Q 2. We have an object Student who is giving a test in Java and it has four attributes (String studentId, String studentName, String subject, int point ) to define the point of each subject that student get for three years.

If we use the partitioner as below:
public int getPartition(Customer key, int numPartitions) {
        int hash = key.getStudentId().hashCode() + key.getSubject().hashCode();
        int partition = hash % numPartitions;
        return partition;

What can be a key group to the reducer if 4 students have a point of 8 subjects and 6 students have a point with 6 subjects?

Sample Report

View Full Report . . .

Skill wise performance report by iMocha

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You can customize this test by

difficulty level
Setting difficulty level of test      

Choose easy, medium or hard questions from our skill libraries to assess candidates of different experience levels.                       

multiple skills
Combining multiple skills into one test

Add multiple skills in a single test to create an effective assessment. Assess multiple skills together.                                              

adding own skill
Adding your own questions to the test

Add, edit or bulk upload your own coding questions, MCQ, whiteboarding questions & more.                       

tailor made test
Requesting a tailor-made test                  

Get a tailored assessment created with the help of our subject matter experts to ensure effective screening.

Trusted By

Pedro Furtado, Capacity Manager, Altran-Portugal
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“Finding quality talent is a challenge more so when you consider the sheer number of resumes we get each year. To top this, the time we spent on our recruitment process was humongous. iMocha helped us to cut down on our candidate filtration time by 40 %, making it our preferred assessment tool.”

Pedro Furtado, Capacity Manager, Altran-Portugal

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