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

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9 reasons why
9 reasons why

Adaface NoSQL Test is the most accurate way to shortlist NoSQL DataBase Engineers



Reason #1

Tests for on-the-job skills

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
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
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Reason #3

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
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment NoSQL Assessment Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the NoSQL Assessment Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

View sample scorecard
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Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


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About the NoSQL Assessment Test

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
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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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The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

NoSQL Hiring Test FAQs

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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