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NoSQL Online Test

The NoSQL Online Test uses scenario-based MCQs to evaluate candidates on their knowledge of NoSQL databases, including their understanding of data modeling, database design, indexing, querying, and data consistency in NoSQL databases. The test aims to evaluate a candidate's ability to design and develop applications that utilize NoSQL databases efficiently and effectively.

Covered skills:

  • Column-Store system
  • Document-Store Id store system
  • Key-value solutions
  • Column-Store solutions
  • Document Store IT Solutions
  • Graph-Based Solutions
  • Key-value store solutions

About the NoSQL Test


The NoSQL Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Ability to design and implement column-store systems
  • Experience in developing document-store ID store systems
  • Understanding of key-value solutions and their implementation
  • Proficiency in column-store solutions for efficient data storage
  • Knowledge in document store IT solutions for seamless document management
  • Familiarity with graph-based solutions for effective data representation
  • Expertise in key-value store solutions for quick data retrieval

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Use Adaface tests trusted by recruitment teams globally. Adaface skill assessments measure on-the-job skills of candidates, providing employers with an accurate tool for screening potential hires.

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Non-googleable questions


We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions
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Why you should use Pre-employment NoSQL Online Test?

The NoSQL Assessment Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • Designing and implementing Column-Store system
  • Document-Store Id store system implementation
  • Creating Key-value solutions
  • Optimizing Column-Store solutions
  • Developing Document Store IT Solutions
  • Implementing Graph-Based Solutions
  • Building Key-value store solutions
  • Managing data in Column-Store system
  • Implementing Document-Store Id store system
  • Troubleshooting Key-value solutions

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the NoSQL Online Test?

Column-Store system: The Column-Store system is a database management system that stores data in columns instead of rows. This structure allows for faster data retrieval and analysis, especially for large datasets, as it only reads the columns needed, minimizing disk I/O and improving query performance.

Document-Store Id store system: A Document-Store Id store system is a database management system that stores and retrieves data in a document-oriented format, where each document is identified by a unique document identifier (ID). This allows for flexible and scalable data storage, as data is stored in a schema-less manner, accommodating varying data structures and types within each document.

Key-value solutions: Key-value solutions are data storage and retrieval systems that use a simple key-value pair structure, where each piece of data is associated with a unique key. This approach enables rapid data access and retrieval, making it ideal for caching, session management, and other scenarios where quick look-up operations are required.

Graph-Based Solutions: Graph-based solutions are database management systems that use graph structures to represent and store data. Graphs consist of nodes (representing entities or objects) and edges (representing relationships between nodes). This approach enables efficient querying and analysis of complex relationships and interconnected data, making it suitable for social networks, recommendations, and network analysis.

Column-Store solutions: Column-Store solutions are database management systems that store data in a columnar format, rather than the traditional row format. This organization allows for higher compression rates and improved query performance, as only the necessary columns are read during query execution. Column-Store solutions are particularly beneficial for data analytics and reporting, where aggregated queries over large datasets are common.

Document Store IT Solutions: Document Store IT Solutions are database management systems that focus on storing and retrieving data in a flexible and self-describing format, such as JSON or XML. This allows for the storage of semi-structured and structured data, facilitating dynamic schema evolution and supporting rapid development and iteration cycles.

Full list of covered topics

The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for NoSQL Assessment Test to be based on.

Column-store design
Indexing in column stores
Query optimization in column stores
Document-store ID retrieval
Document-store data modeling
Key-value storage architecture
Key-value data retrieval methods
Writing efficient code with column stores
Designing schema for document stores
Graph-based data structure
Graph traversal algorithms
Graph database integration
Using key-value stores for caching
Document-oriented database systems
Columnar storage compression techniques
Document-store indexing methods
Key-value store consistency models
Querying in graph-based solutions
Normalization in document stores
Partitioning in column stores
Aggregation in column stores
Sharding in key-value stores
Concurrent operations in document stores
Load balancing in graph-based solutions
Distributed key-value stores
Data replication in column stores
Access control in document stores
Backup and recovery in key-value stores
Schema evolution in graph-based solutions
Data migration in document stores
Data consistency in column stores
Eventual consistency in key-value stores
Scalability of graph-based solutions
Database locking in document stores
Optimistic concurrency control in key-value stores
Transaction management in column stores
Embedded document models in document stores
Cap theorem and column stores
Horizontal partitioning in key-value stores
Traversal algorithms in graph-based solutions
Capacity planning for document stores
Denormalization in column stores
Key-value store durability and fault tolerance
Graph-based queries optimization
Database locking in graph-based solutions
Secondary indexes in document stores
Data distribution in key-value stores
Backup and replication strategies in column stores
Concurrency control in graph-based solutions
Data modeling in document stores
Performance optimization in key-value stores
Data consistency in graph-based solutions
Query planning and execution in document stores
Column-store compression algorithms
Key-value store benchmarks
Graph visualization and analysis
Document-store query languages
Data migration in key-value stores
Graph database query languages
Column-store partitioning strategies
Distributed document stores
Key-value store consistency models
Fault tolerance in graph-based solutions
Schema design in document stores
Consistency models in column stores
Distributed key-value store replication
Security in graph-based solutions
Sharding strategies for key-value stores
Data replication in document stores
Aggregation functions in column stores
Concurrency control in key-value stores

What roles can I use the NoSQL Online Test for?

  • NoSQL DataBase Engineer
  • Hadoop and NoSQL Operations Engineer
  • NoSQL Database Administrator
  • NoSQL Platform Engineer

How is the NoSQL Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Optimizing performance of Column-Store solutions
  • Developing scalable and efficient Document Store IT Solutions
  • Designing and modeling Graph-Based Solutions
  • Implementing distributed Key-value store solutions
  • Analyzing and optimizing data in Column-Store system
  • Implementing replication for Document-Store Id store system
  • Applying indexing strategies for Key-value solutions
  • Designing and implementing distributed Column-Store solutions
  • Building secure Document Store IT Solutions
  • Implementing traversal algorithms for Graph-Based Solutions

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Have questions about the NoSQL Hiring Test?

What is NoSQL Assessment Test?

The NoSQL Assessment Test is designed to evaluate the candidate's skills and knowledge in various NoSQL databases. This test is commonly used by recruiters and companies to assess technical qualifications for roles requiring expertise in NoSQL solutions.

Can I combine the NoSQL Assessment Test with Document Store IT questions?

Yes, recruiters can request a single custom test with multiple skills, including Document Store IT Solutions. For more details on how we assess Document Store IT Solutions, check out the Document Store IT Solutions Test.

What topics are covered in the NoSQL Assessment Test?

The NoSQL Assessment Test covers a range of topics including Column-Store systems, Document-Store systems, Key-value solutions, Graph-Based Solutions, and skills required for senior roles such as optimizing Column-Store performance and implementing distributed Key-value store solutions.

How to use NoSQL Assessment Test in my hiring process?

Use the NoSQL Assessment Test as a pre-screening tool at the beginning of your recruiting process. Add the test link to your job post or directly invite candidates via email.

What are the main Database tests?

Some important database tests include:

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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Along with scorecards that report the performance of the candidate in detail, you also receive a comparative analysis against the company average and industry standards.

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