Apache Cassandra Online Test

Candidates Assessed


Organizations Served


Apache Cassandra online test is the ideal test for recruiters and hiring managers to assess candidate's understanding of Apache Cassandra. Our test is useful for hiring Java Developer, Data Science Developer, and Full stack Developer. Our customers have reported that iMocha's Apache Cassandra online test has helped them to reduce hiring time by 45%. 

About Apache Cassandra Online Test

Apache Cassandra is one of the highly scalable, high-performance distributed NoSQL database management systems which is designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure. Cassandra basically has a peer-to-peer distributed system across its nodes, and data is distributed among all the nodes in a cluster. 
Our Apache Cassandra online test is created & validated by experienced Subject Matter Experts (SME) to assess database skills of candidates using Apache Cassandra as per industry standards. Online Apache Cassandra test helps recruiters and hiring managers to assess & hire developers with strong understanding of Cassandra database and java.

Are you a jobseeker looking to sharpen your skills?

Test Summary

The Apache Cassandra assessment test helps to screen the candidates who possess traits as follows:

1.  Should have experience in data modelling in Cassandra
2.  Must have experience with all phases of Software Development Lifecycle, including system analysis, design, coding, testing, debugging and documentation.
3.  Hands-on experience with Apache Cassandra and Java
4.  Understanding the Cassandra architecture concepts.
5.  Proficient in Cassandra database, set up back-up/recovery processes, handle capacity planning, run maintenance tasks (e.g. upgrades).

 Using powerful reporting of Apache Cassandra skills test, you can have a detailed analysis of the test results to help you make a better hiring decision and predict the candidate’s performance. To know about the candidate experience, we have introduced the new feature called candidate feedback module in our Apache Cassandra pre-employment test so that it will ensure you that the candidates are getting an excellent experience while attempting the test.

The online Apache Cassandra online test enables employers and recruiters to identify potential prospects by evaluating working skills and job readiness. For this reason, the emphasis is laid upon evaluating the knowledge of applied skills gained through real work experience, rather than theoretical knowledge.
The online Apache Cassandra test may contain MCQs (Multiple Choice Questions), MAQs (Multiple Answer Questions), Fill in the Blanks, Whiteboard Questions, Audio / Video Questions, AI-LogicBox  (Pseudo-Coding Platform), Coding Simulators, True or False Questions, etc.  

Test Duration: 20 minutes

No. of Questions: 10

Level of Expertise: Entry/Mid/Senior

Useful for hiring

  • Java Developer
  • Data Science Developer
  • Full stack Developer

Topics Covered

right arrow
Tombstone expiration

iMocha’s Apache Cassandra online test helps recruiters and hiring managers to evaluate candidate’s understanding about tombstone lifetime attribute which is a time period after which the data gets deleted from the directory 

right arrow
Bloom filter

This test evaluates candidate’s knowledge about bloom filter which is a data structure that determines one of two possible states of data 

right arrow
Starved stables

Our online Apache Cassandra test checks candidate’s proficient knowledge about starved stables  

right arrow
Data caches

Our test assesses applicant’s ability to integrate caching and distributes cache data around the cluster 

right arrow

This Apache Cassandra assessment test helps recruiters and hiring managers to evaluate candidate’s understanding about data replication which stores data on multiple nodes to ensure reliability and fault tolerance 

right arrow
Consistency level

Our assessment helps to check candidate’s knowledge about the consistency level which defines the minimum number of Cassandra nodes that acknowledges a read or write operation before considered as successful operation 

right arrow
Commitlog sync

This test evaluates candidate’s ability to use commitlog record which keeps a record of every transaction and synchronizes with database 

right arrow

Our Apache Cassandra skills test assesses candidate’s understanding about snitch job which determines which data centers should use to read data from and write data to 

right arrow
Selection Clause

Our test gauges candidate’s proficiency in using select clause which returns values from selected rows and columns 

right arrow

This Apache Cassandra pre-employment test helps to evaluate candidate’s understanding about Nodetool utility which is a command line interface that manages a cluster 

Sample Questions

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

Question types:

Multiple Option


Tombstone expiration



Q 1. While working in Cassandra one of the node is unreachable. You get a hint of missing data writes in the node. If you want to avoid the expiration of tombstone by repairing all the data within token range, which of the following repair methods will you use? 
Full repairs
Continued repairs
Incremental repairs
All of the mentioned

Question types:

Multiple Option


Cassandra Writes



Q 2. While working with Cassandra, with peer-to-peer architecture every node in the cluster is eligible to receive read/write requests. Upon receiving the write request, columns would first be written on the commit log and then into the memtable onto the assigned node. Determine what alternatives will be adopted in case if the memory limit is exceeded for Cassandra inserts and updates?
The largest memtable will be flushed out on to disk
The smallest memtable will be flushed out on to disk
Last memtable will be flushed out on to disk
First memtable will be flushed out on to disk

Sample Report

View Full Report . . .

Skill wise performance report by iMocha

Hire job-fit candidates using this test now

You can customize this test by

difficulty level
Setting difficulty level of test      

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

multiple skills
Combining multiple skills into one test

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

adding own skill
Adding your own questions to the test

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

tailor made test
Requesting a tailor-made test                  

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

Trusted By

George Nichkov, Gett
gartner Logo

“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.”

George Nichkov, Gett

capgemini logo
coupa logo
ericsson logo
cognizant logo
nice logo
wipro logo

Start hiring job-fit candidates using this assessment