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Hadoop Online Test

Candidates Assessed

18276+

Organisations Served

126+

iMocha’s Hadoop assessment test enables recruiters and hiring managers to hire job-fit candidate within a short period & take unbiased decision. This test is useful for hiring Hadoop Developer, Big Data Hadoop Developer, Hadoop Application Developer, Hadoop specialist, and Hadoop analyst. Our test has helped our customers to reduce technical screening time by 80%.

About Hadoop Online Test

Hadoop is an open-source scalable framework (sponsored by Apache Software Foundation) that allows distributed processing of large data sets across clusters of computers using the set of programming modules like Hadoop Common, HDFS, YARN, MapReduce. Hadoop library is designed to detect and handle failures at the application layer.

Hadoop online test helps recruiters and hiring managers to assess skills like Hadoop programming, ability to work with data replication in HDFS, resource manager, etc. iMocha’s Hadoop assessment test is created & validated by experienced Subject Matter Experts (SME) to assess & hire Hadoop developers as per industry standards.

Hadoop pre-employment test will evaluate a candidate’s practical knowledge and will identify whether the candidate is ready to be employed. Hadoop online test can be taken by the candidates from anywhere at the comfort of their time zone.

Are you a jobseeker looking to sharpen your skills?

Test Summary

Hadoop skill assessment test helps you to screen the candidates who possess traits as follows: 

  • Deep understanding of Apache Hadoop and surrounding technologies like Pig, HBase, Avro
  • Ability to efficiently work on Hadoop development & its implementation
  • Ability to work with Hadoop HDFS, YARN, MapReduce
  • Strong understanding of integration techniques like ETL
  • Ability to work with workflow schedulers like Oozie, column-oriented data store parquet

iMocha’s Hadoop developer online test has a unique set of questions. You can also create or ask us to create a customized test that includes questions which are specific to your job requirement.

Our powerful reporting helps you to analyze section wise performance of candidate to gauge his strengths and weaknesses. Moreover, you can always use our candidate ranking tool to screen the best performing candidate amongst others.

Hadoop skill 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: 20 minutes

No. of Questions: 10

Level of Expertise: Entry/Mid/Expert

Useful for hiring

  • Hadoop Developer
  • Big Data Hadoop Developer
  • Hadoop Application Developer
  • Hadoop specialist
  • Hadoop analyst

Topics Covered


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Data Replication

iMocha’s Hadoop online test helps recruiters and hiring managers to evaluate candidate’s understanding about data replication which increases the availability of data whenever fault occurs at server

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Parquet File

Our test evaluates candidate’s knowledge about Parquet file which is used to store data in a column layout by using .parquet file

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Resource Manager

This Hadoop skill test assesses a candidate’s understanding about Resource Manager (RM) which helps in tracking the resources in a cluster, and scheduling applications

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Sequence File

This test evaluates candidate’s sequence file which is binary file that contains serialized key/value pairs

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Task Tracker

Our test helps in assessing candidate’s knowledge about task tracker which accepts tasks in the cluster

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Mapper / Reducer Task

This Hadoop skill assessment test helps to assess candidate’s understanding about mapper function that processes all input records from a file and generates the output which works as input for Reducer

Sample Questions

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

Question types:

Multiple Option

Topic:

Hadoop MapReduce

Difficulty:

Easy


Q 1. You plan to use a combiner to reduce the amount of data sent to the Reducer. Your output from the Mapper is . Which of the following should you subclass for using the combiner?
Combiner<IntWritable,Text,IntWritable,Text>
Combiner<Text,Text,IntWritable,IntWritable>
Reducer<IntWritable,Text,IntWritable,Text>
Mapper<IntWritable,Text,IntWritable,Text>

Question types:

Multiple Option

Topic:

Hadoop MapReduce

Difficulty:

Easy


Q 2. Which of the following properties has to be satisfied by the values emitted from the mapper in order to apply a combiner?
A combiner can always be applied to any data.
The output of the mapper and the output of the combiner have to be the same key-value pair and they can be heterogeneous.
The output of the mapper and the output of the combiner have to be the same key-value pair.
It can be done only if the values satisfy associative and commutative properties.

Question types:

Multiple Option

Topic:

Hadoop MapReduce

Difficulty:

Easy


Q 3. In a MapReduce program, the reducer receives all values associated with the same key. Which of the following statements is the most accurate about the ordering of these values?
The values will be ordered in which they were emitted from the mappers.
The values are in sorted order.
The values are arbitrarily ordered, but multiple runs of the same MapReduce job will have the same ordering.
Since the values come from mappers o/p, there will be contiguous sections of sorted values.
The values are arbitrarily ordered, and the ordering may vary from run to run of the same MapReduce job.

Sample Report

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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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