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Greenplum Skills Test
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Greenplum Skills Test

iMocha’s Greenplum skills test is the most preferred tech assessment for recruiters and hiring managers to assess candidates objectively. Our test is useful for hiring job roles like Project Lead - Greenplum and Big Data Developer. This Greenplum assessment test helps recruiters to increase the interview-to-selection ratio by 62% & reduce hiring costs by 40%.

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Greenplum Skills Test

Greenplum is a big data technology based on MPP architecture and Postgres open-source database technology. Greenplum reduces data silos by providing you with a single, scale-out environment for converging analytic and operational workloads, like streaming ingestion. All major Greenplum contributions are part of the Greenplum Database project and share the same database core, including the MPP architecture, analytical interfaces, and security.

The Greenplum skills test may contain coding questions and innovative AI-LogicBox (Pseudo coding platform) questions to assess a candidate’s coding skills in a fun & quick way.

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How it works

Test Summary

The Greenplum skills test helps to screen the candidates who possess the following traits:

  • Strong knowledge of databases in Greenplum
  • Good knowledge of Greenplum catalogs, Greenplum parameters, etc.
  • Experience with Greenplum maintenance and security procedures
  • Familiarity with the hash function, MVCC, redistribution motions, etc., in Greenplum

iMocha’s Greenplum assessment test is secure and reliable. You can use our role-based access control feature to restrict system access based on the roles of individual users within the recruiting team. Read this blog to discover how you can assess and hire Big data developers using iMocha assessments.

Useful for hiring
  • Project Lead - Greenplum
  • Big Data – Greenplum
Test Duration
No. of Questions
Level of Expertise
Topics Covered

Greenplum Database

Our test assesses a candidate’s knowledge of an advanced, fully featured, open-source data platform that provides powerful and rapid analytics on petabyte-scale data volumes.

MVCC in Greenplum

Our Greenplum skills test evaluates a candidate’s knowledge of the Multiversion Concurrency Control (MVCC) model to manage concurrent transactions for heap tables. It controls a database management system and allows concurrent queries to complete with correct results while ensuring the integrity of the database.

Greenplum Maintenance

The test checks knowledge of the process of periodically checking the status of Greenplum Database catalogs for bloat, and VACUUM-ing the catalog as appropriate.

Greenplum Catalog

iMocha’s pre-hire test evaluates a candidate’s understanding of the Greenplum catalog, which contains information about all objects and their associated dependencies.


Sample Question
Choose from our 100,000+ questions library or add your own questions to make powerful custom tests.
Question type
Multiple Option
Topics covered
GP catalogs - gp_segment_configuration


Q 1. You are working in the Greenplum DBA and want to see primary to mirror mapping and configuration on the content ID and figure out the primary and mirror for each content on the cluster. Which of the following queries will you use here and on which database catalog should it be used?

Select * from segment_configuration order by dbid;
Select * from gp_seg_configuration order by dbid;
Select * from gp_configuration_history order by dbid;
Select * from gp_segment_configuration order by dbid;
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Test Report
You can customize this test by

Setting the difficulty level of the test

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

Combining multiple skills into one test

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

Adding your own
questions to the test

Add, edit, or bulk upload your coding, MCQ, and whiteboard questions.

Requesting a tailor-made test

Receive a tailored assessment created by our subject matter experts to ensure adequate screening.