Greenplum Skills Test

Test duration:

min

No. of questions:

Level of experience:

Entry/Mid/Senior

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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A symbol for the Greenplum database software, which appears as a green circle with a stylized taco filling

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.

Wondering what other skills we have in our World’s Largest Skills Assessment library?

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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

min

No. of Questions

Level of Expertise

Entry/Mid/Senior

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

Difficulty

Medium

Question:

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;