Greenplum Skills Test

Candidates Assessed

12367+

Organizations Served

112+

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 interview-to-selection ratio by 62% & reduce hiring cost by 40%

Test Summary

Greenplum skills test helps to screen the candidates who possess traits as follows:

Strong knowledge of databases in Greenplum
Good knowledge with Greenplum catalogs, Greenplum parameters, etc
Experience with Greenplum maintenance and security procedures
Familiarity with 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.

Test Duration: 20 minutes

No. of Questions: 10

Level of Expertise: Entry/Mid/Senior

Useful for hiring

Project Lead - Greenplum
Big Data – Greenplum

Topics Covered

Greenplum Database

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

Greenplum Catalog

iMocha's pre-hire test evaluates candidate's understanding of Greenplum catalog that contains Information about all objects and their associated dependencies are stored in the catalog

Greenplum Maintenance

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

MVCC in Greenplum

Our Greenplum skills tests evaluates candidate's knowledge of 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

Sample Questions

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

Question types:

Multiple Option

Topic:

GP catalogs - gp_segment_configuration

Difficulty:

Medium

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;

Question types:

Multiple Option

Topic:

GP parameters - search_path

Difficulty:

Hard

Q 2. You are working in the Greenplum DBA and have to set the default schema for a user's profile. Which of the following queries will help you to set the default schema?

ALTER ROLE user_name SET schema TO myschema, public, pg_catalog;

ALTER ROLE user_name SET default schema TO myschema, public, pg_catalog;

ALTER ROLE user_name SET search_path TO myschema, public, pg_catalog;

Grant role role_name SET search_path TO myschema, public, pg_catalog;

You can customize this test by

Setting difficulty level of test

Choose easy, medium or hard 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. Assess multiple skills together.

Adding your own questions to the test

Add, edit or bulk upload your own coding questions, MCQ, whiteboarding questions & more.

Requesting a tailor-made test

Get a tailored assessment created with the help of our subject matter experts to ensure effective screening.

Related Skills

Trusted By

“When hiring Business Analysts, I had to assess the applicants on their logical reasoning & aptitude. However, assessing a large pool of candidates & acquiring unbiased results without any human hustle is difficult without an automated solution. With iMocha, I was able to filter more than 500 candidates within a short span of time.”