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Big Data
Skill Tests Library

Tests to Measure and Assess All Big Data Skills

A human head with a gear in the middle of it

Big Data Developer Test

Candidates
Assessed:
13878
Organizations Served:
143
A yellow elephant running towards the viewer

Hadoop Online Test

Candidates
Assessed:
18276
Organizations Served:
126
A yellow elephant running towards the viewer with the words MapReduce written in yellow.

MapReduce Test

Candidates
Assessed:
12876
Organizations Served:
123
A yellow elephant running

HDFS Skills Test

Candidates
Assessed:
14258
Organizations Served:
151
Data synchronization icon, showing a document being transferred between two databases.

Data Transformation Skills Test

Candidates
Assessed:
150345
Organizations Served:
132
A bar graph with a line graph overlaid on top. The bars are in orange and yellow, while the line is blue. The graph is displayed on a computer screen.

DataFrame Test

Candidates
Assessed:
10056
Organizations Served:
121
A network of colorful interconnected nodes, representing the vast and complex nature of big data

Apache Flink Skills Test

Candidates
Assessed:
14098
Organizations Served:
130
A yellow elephant running

HDFS Skills Test

Candidates
Assessed:
14258
Organizations Served:
151
A human head with a gear in the middle of it

Big Data Developer Test

Candidates
Assessed:
13878
Organizations Served:
143
A pie chart and a line graph drawn on a whiteboard, representing data analysis or visualization

Data Interpretation Test

Candidates
Assessed:
17246
Organizations Served:
129
The Python logo, a stylized snake-shaped

Python Coding Test (High)

Candidates
Assessed:
15723
Organizations Served:
118
A python snake coiled around a branch, rendered in shades of blue and yellow

Python Coding Test (Basic)

Candidates
Assessed:
13678
Organizations Served:
134
The official logo of Python

Python Coding Test (Medium)

Candidates
Assessed:
13768
Organizations Served:
134
The blue and yellow logo of Python

Python Test

Candidates
Assessed:
13221
Organizations Served:
131
A circle with a cloud in the middle and the words big data written in the middle

Big Data Assessment Test

Candidates
Assessed:
23723
Organizations Served:
126
A magnifying glass looking at a person in a file

Kafka Test

Candidates
Assessed:
19376
Organizations Served:
129
Black and orange Apache Spark logo

Spark Test

Candidates
Assessed:
12378
Organizations Served:
117
Docker logo: A blue whale with a building made of squares on its back

Docker Test

Candidates
Assessed:
21135
Organizations Served:
123
A yellow elephant running towards the viewer

Hadoop Online Test

Candidates
Assessed:
18276
Organizations Served:
126
A yellow elephant running towards the viewer with the words MapReduce written in yellow.

MapReduce Test

Candidates
Assessed:
12876
Organizations Served:
123
A cheerful bee represents Apache Hive, an open-source data warehouse software

Hive Test

Candidates
Assessed:
19283
Organizations Served:
128
Stack of servers under a cloud representing data storage

Big Data - Pig Test

Candidates
Assessed:
17638
Organizations Served:
127
Blue text spells out the word flume

Flume Test Assessment

Candidates
Assessed:
12752
Organizations Served:
112
A white barrel connected to a blue and yellow pipe, represents a database

Big Data - Sqoop Test

Candidates
Assessed:
10753
Organizations Served:
180
A set of icons that represent files being transferred to a database server

Big Data - Oozie Test

Candidates
Assessed:
17263
Organizations Served:
126
Informatica MDM logo with full company name in bold text

Informatica MDM Test

Candidates
Assessed:
16332
Organizations Served:
123
The Hortonworks logo, featuring a green elephant mascot named Horton

HortonWorks Test

Candidates
Assessed:
21873
Organizations Served:
127
Computer monitor displaying a graph, representing data analysis and analytics

Data Science & Analytics Test

Candidates
Assessed:
12754
Organizations Served:
132
A network of interconnected nodes representing complex systems and data flow

SnapLogic Online Test

Candidates
Assessed:
21652
Organizations Served:
129
Apache Zookeeper logo

Apache Zookeeper Online Test

Candidates
Assessed:
13510
Organizations Served:
118
A padlock surrounded by a circle of stars on a blue background

GDPR Online Test

Candidates
Assessed:
11509
Organizations Served:
164
A blue water droplet with gray squares, symbolizing data flow and connectivity

Apache NiFi Online Test

Candidates
Assessed:
11299
Organizations Served:
161
Yellow and blue Apache Hadoop Yarn logo

Apache Hadoop YARN Test

Candidates
Assessed:
10527
Organizations Served:
179
A data-driven approach to quality and efficiency, symbolized by the Lean Six Sigma logo

Six Sigma Test

Candidates
Assessed:
14537
Organizations Served:
115
Informatica PowerCenter logo

Informatica B2B Data Exchange Test

Candidates
Assessed:
11994
Organizations Served:
166
Teradata logo

Teradata MDM Test

Candidates
Assessed:
11001
Organizations Served:
112
A computer monitor displaying a lock icon overlaid

Talend Test

Candidates
Assessed:
10166
Organizations Served:
168
Black and orange logo featuring a star, representing PySpark

PySpark Coding Test

Candidates
Assessed:
16580
Organizations Served:
132
A colorful pinwheel with four arms, each a different color

Apache Airflow Skills Test

Candidates
Assessed:
23846
Organizations Served:
116
A blue and yellow logo on a gray background

Apache Beam Python Test

Candidates
Assessed:
11550
Organizations Served:
162
Yellow circle with a gray minaret

Ambari Test

Candidates
Assessed:
13695
Organizations Served:
145
A symbol for the Greenplum database software, which appears as a green circle with a stylized taco filling

Greenplum Skills Test

Candidates
Assessed:
12367
Organizations Served:
112

Want to build a high-performing Big Data Engineers?

Use our Big Data Online test to screen, and assess candidates for job roles such as:

Big Data/Hadoop Developer – Oozie Big Data Software Engineer Hadoop DBA (Flume)
Big Data Developer – Pig Big Data Developer – Hive Software Development Engineer – Flume
Big Data/Hadoop Developer – Sqoop Programmer/Developer – Hortonworks Big Data/Hadoop Developer – MapReduce
Big Data /Hadoop Developer Hadoop Developer – MapReduce null

Our Big Data test questions measure the following skills:

  • Oozie – Oozie concepts, control flow and action nodes, Oozie command line.
  • Pig – Pig Commands, Optimizations in Pig, and Pig Scripts.
  • Sqoop – Sqoop-Based Connector, Sqoop Import and Export Commands, MySQL Database, Disk I/O, and Network I/O.
  • Flume – Concepts on Flume Agent, HDFS Locations, Streaming Data, and Sink and Source.
  • Hadoop – Concepts on Data Replication, Resource Manager, Mapper / Reducer Task, Parquet File, Sequence File, and Task Tracker.
  • Hive – Hive Functions, Hive Operators, Hive Queries, and Hive Features.
  • Hortonworks – HDFS HDP, Hive HDP, Oozie HDP, Sqoop HDP, and MapReduce HDP.
  • MapReduce – File System Counter, MapReduce Job Methods, and MapReduce Version 2 Process.
  • Ambari – Workflow Management, HDFS Components, Zookeeper service, Global Parameters
  • Greenplum – Greenplum Maintenance, Greenplum Catalog, Greenplum Database, MVCC
  • Apache Beam – Triggers, PCollection, Hints in Beam
  • Apace Airflow – LDAP Configuration, Tasks, Service Key, Operators, Logging, Kerberos Integration.
  • Pyspark – Data Exploration, Data Transformation, Merging Datasets, Machine Learning, Datasets, Spark streaming
  • Zookeeper – Cluster nodes, ZNodes, Interactions, Applications
  • SnapLogic – SnapLogic Architecture, Components, Integration Cloud, ETL and EAI, Event Driven Pipelines
  • Informatica MDM – MDM Hub Store Building Schema, Metadata Validation, MDM Hub Store Unmerge, MDM Hub Store SIF, Store Match and Merge
  • Docker – Docker Compose, Docker Hub, Docker Host, DDC, Docker Containers
  • Spark – Core, Streaming, SQL
  • Kafka – Kakfa Offsets, Log Retention, Kafka Tools, Kafka Clusters, In-synced Replica
  • Data Interpretation – Pie Chart, Bar Chart, Ratio Proportion Problems, Percentage of Increase/Decrease Problems

Two important use cases for Big Data Online test

#1 Identifying job-fit candidates based on job roles

You can design customized big data tests for any given job role. Using this capability, you can choose questions from different skill types, including functional, technical, and soft skills. For example, with our customized big data online test, you can assess candidates' understanding of Hive, Map Reduce, Greenplum, Data Analysis, Flume, Oozie, and more to hire the best individuals for the job.

#2 Skill-gap analysis of your employees

iMocha allows you to measure employees' skill competency through big data training assessments. It determines the current skill level and identifies the areas for growth. Using this feature, you can measure employees' progress from their existing knowledge base to gained knowledge. For example, you can use our big data training tests to identify an engineer's knowledge about Pyspark, Zookeeper, Data Interpretation, and other skills and perform a skill gap analysis.

Test Creation Process

We provide various types of big data tests to help you evaluate candidates' specific skills. These questions are created by Subject Matter Experts (SMEs) based on their knowledge and expertise. For example, only big data specialists will develop questions about Pig, Sqoop, Hadoop, Hortonworks, or Kafka based on easy, medium, and hard difficulty levels.

You can - choose which questions to include in the big data online test or ask us to create personalized assessments according to your requirements.

Loved by our
Customers

Implementing iMocha has been a game-changer for our talent acquisition process. The platform’s extensive range of assessments has allowed us to evaluate candidates' skills with precision and efficiency, significantly improving our hiring quality.

The user-friendly interface, coupled with insightful analytics, has streamlined our decision-making process. iMocha not only saved us time but also ensured we onboard the best talent. It’s an invaluable tool for any organization looking to elevate their hiring strategy.

The support from iMocha’s team assigned to UNICEF has been exceptional, providing us with extraordinary customer service experience. We are proud to partner with iMocha and look forward to continuing our journey towards a skills-first approach in talent management.

Enrique Santander

HR Manager, Division of Human Resources
UNICEF

HexaVarsity has one goal, to nurture a learning culture and help people grow and succeed. We were studying industry trends and it was clear that Learning and Development was going to be the game changer. It was then that we decided to have iMocha's consultant centric plan, which would be designed to provide the best learning environment to our employees.

With iMocha, we found the perfect assessment partner that brought a full circle to our initiative.

After the course completion, the assessment provided an apt picture of our employees' strengths, areas of improvement, and laid the path for further individual development planning.

Tanuja Pereira

Head - Learning and Development (Laterals)
Hexaware

Hiring Data Scientists was a challenge as the interview process took time. With iMocha's data science assessments, the process was simplified.

The tool helped us shortlist top candidates and extend offer letter in just 4 days.

Lynn Hodak

Talent Acquisition Manager, Capgemini

iMocha has really helped us in preparing our pre-sales team to sell our embedded security solutions more effectively to customers. We were looking for a partner who could help us to build a tailor-made, flexible solution that could support our needs, and help us to scale globally.

The partnership between Ericsson and iMocha has been excellent. They created solutions for our specific needs and the process has been very collaborative.

Sabine van Zanten

Learning & Development Consultant
Ericsson

FAQ
How is the Big Data online test customized?
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Our SMEs can create individualized assessments depending on your job role requirements. These assessments are divided into primary and secondary skills, such as Ambari, Apache Beam, Communication skills, Docker, Spark, Analytical Skills, Informatica MDM, and more. Additionally, SMEs can craft customized questions according to applicants' experience and difficulty level.

Explore Our Blog: 'How to Choose the Right Topics for Crafting a Big Data Assessment.

What are the certifications required for this role?
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Some popular Certifications for Big Data related job roles are as follows:

• Google Data Analytics Professional Certificate

• IBM Data Analyst Professional certificate

• Cloudera Certified Associate (CCA) Data Analyst

• SAS Certified Data Scientist

• Certified Analytics Professional (CAP)

• Dell EMC Proven Professional Data Scientist Associate (EMCDSA)

• Certification of Professional Achievement in Data Sciences

• Amazon Web Services (AWS) Big Data Specialty Certification

• Intellipaat Big Data Hadoop Certification

• Microsoft’s MCSE: Data Management and Analytics

• Hortonworks Hadoop Certification

• MongoDB Certified Developer Exam

• Oracle Business Intelligence Certification

• Mining Massive Data Sets Graduate Certificate

What are the most common interview questions for this role?
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Some of the common Big Data interview questions asked for this role are:

• What are the 5 V's in Big Data?

• How are Hadoop and Big Data related?

• How to deploy a Big Data Model? Mention the key steps involved.

• Mention the common input formats in Hadoop.

• What is Map Reduce in Hadoop?

• Explain overfitting in big data. How to avoid the same.

• What is the Port Numbers for Name Node, Task Tracker, and Job Tracker?

• What are the different file permissions in HDFS for files or directory levels?

• How Is Hadoop CLASSPATH essential to start or stop Hadoop daemons?

What are the roles and responsibilities of a Big Data Developer?
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Big Data Developers are required to perform the following tasks and responsibilities:

• Build and monitor big data applications utilizing a variety of technologies (e.g., Hadoop, Spark, and NoSQL databases)

• Create and implement data models to verify the quality, consistency, and integrity of massive amounts of data.

• Combine data from numerous sources. (e.g., social media, log files, and sensors)

• Improve the performance of big data applications by optimizing data processing, query execution, and storage.

• Implement encryption, access restrictions, and other security measures to ensure the safety of sensitive data.

• Analyze enormous amounts of data with statistical and analytical software like R and Python.

• Coordinate with other members of the development team, including data scientists, analysts, and business stakeholders.

• Troubleshoot and provide support for big data applications in production.

• Ensure that the big data applications they develop are innovative, efficient, and effective.

What are the required skill sets of a Big Data Developer?
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You can consider these technical as well as non-technical skills while hiring Big Data Developer:

Technical Skills:

• Structured Query Language (SQL)

• Python and related programming languages

• Data visualization (especially, Tableau)

• Microsoft Excel

• Machine learning models/algorithms

• Building data sets

• Predictive modelling

• Data engineering/optimization

• Regression analysis

• Oozie & Pig

• Hive & Harton works

• Kafka & Greenplum

Non-Technical Skills:

• Data Interpretation

• Communication

• Analytical Thinking

• Problem Solving

• Team Work

• Time Management

What is the package of a Big Data Developer?
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In the United States, the average Big Data Developer’s salary is $126,750 per year. Big Data Developer salaries start at $110,000 per year.

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