This Hadoop Online Test
Separates Good From Bad Hires

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About the test

The Apache Hadoop online test evaluates a candidate's knowledge of the Hadoop framework, how to use it to configure Hadoop clusters, and how to perform distributed processing of large data sets across clusters of computers.

It's an ideal test for the pre-employment screening of candidates applying for roles such as Hadoop developers, testers, and administrators.

This test requires candidates to answer questions based on Hadoop infrastructure, its configuration, and running MapReduce operations on data sets.

Sample public questions

3 min
Hadoop File Blocks
Hadoop Replication Factor

Capital Analytics, a digital marketing research firm, plans to move its research archives to a Hadoop cluster. They have a Hadoop cluster configuration with 1 NameNode and 3 DataNode(s).

For a replication factor of 3 and the data block size of 128 MB, what will happen if we store a file called '2010_archive' that is 150 MB in size?

3 min
HDFS DataNode
HDFS NameNode

You are given the task of configuring a Hadoop cluster with 2 NameNode(s) and 5 DataNode(s) to handle data generated by web crawlers.

Which options are correct for the given cluster and MapReduce implementations over it?

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Skills and topics tested

  • Hadoop
  • MapReduce
  • Hadoop Streaming
  • File System
  • HDFS
  • HDFS Permissions

For job roles

  • Big Data Engineer
  • Hadoop Administrator
  • Hadoop Developer
  • Hadoop Tester

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