NoSQL coding questions and online tests

Our NoSQL coding questions were prepared by the DevSkiller team for junior, middle, and senior-level positions. The tests are structured to accurately screen each applicant’s abilities through a series of challenges and interview questions.

DevSkiller NoSQL online tests are powered by the RealLifeTesting™ methodology. The methodology replicates real-world scenarios for your applicants to solve in a controlled environment. Find the right candidate with our range of NoSQL interview questions and online tests. 

Java
JUNIOR
Habilidades probadas
Duración
26 minutos como máximo.
Evaluación
Automático
Resumen de la prueba

Preguntas de elección

evaluando el conocimiento de Java, MongoDB, NoSQL

Tarea de programación - Nivel: Fácil

Java | MongoDB | Base de datos de películas - Implementar una clase para recuperar películas de una base de datos.

MongoDB
MIDDLE
Habilidades probadas
Duración
51 minutos como máximo.
Evaluación
Automático
Resumen de la prueba

Preguntas de elección

evaluando el conocimiento de SQL, MongoDB, NoSQL

Lagunas en el código

evaluando el conocimiento de MongoDB

Tarea - Nivel: Medio

SQL | Datos de los clientes - Encuentre todos los clientes cuyos nombres y apellidos no son únicos en esta base de datos, así como el número de veces que cada par de nombres y apellidos aparece en la base de datos.

MongoDB
SENIOR
Habilidades probadas
Duración
56 minutos como máximo.
Evaluación
Automático
Resumen de la prueba

Preguntas de elección

evaluando el conocimiento de SQL, MongoDB, NoSQL

Lagunas en el código

evaluando el conocimiento de MongoDB

Tarea - Nivel: Duro

SQL | Rellenar tabla dispersa - Escriba una consulta que devuelva la lista de todos los usuarios con la fecha de creación y devuelva la fecha de la fila anterior no nula para las entradas afectadas por el fallo.

MongoDB
JUNIOR
Habilidades probadas
Duración
27 minutos como máximo.
Evaluación
Automático
Resumen de la prueba

Preguntas de elección

evaluando el conocimiento de SQL, MongoDB, NoSQL

Lagunas en el código

evaluando el conocimiento de MongoDB, SQL

Tarea - Nivel: Fácil

SQL | Catálogo de sellos | Declaración de CASO - Haga una declaración selectiva, por la cual dividirá su colección de sellos en 3 grupos.

JavaScript
MIDDLE
Habilidades probadas
Duración
121 minutos como máximo.
Evaluación
Automático
Resumen de la prueba

Preguntas de elección

evaluando el conocimiento de ExpressJS

Tarea de programación - Nivel: Medio

Angular 2+ Notepad App

Tarea de programación - Nivel: Medio

Node.JS - Mongo - Informe del curso

Lagunas en el código

evaluando el conocimiento de MongoDB

Java
SENIOR
Habilidades probadas
Duración
42 minutos como máximo.
Evaluación
Automático
Resumen de la prueba

Preguntas de elección

evaluando el conocimiento de Java, Primavera, Primavera - Inyección de dependencia

Tarea de programación - Nivel: Duro

Java | Spring Boot, MongoDB, REST API | Aplicación de blog - Añade una función de comentarios a una sencilla aplicación de blog de Spring Boot REST.

Nodo.js
MIDDLE
Habilidades probadas
Duración
62 minutos como máximo.
Evaluación
Automático
Resumen de la prueba

Preguntas de elección

Verificar el conocimiento de Nodo.js: Retrocesos y variables, EventEmitter eventos únicos, marcos, Usando HTTPS, Programación isomórfica...y... Leyendo de un archivo

Tarea de programación

Completar las funciones en mongo-commands.js para crear una rutina de reducción de mapa que informe de la clave principal de cada estudiante, su nombre y el número de cursos en los que está inscrito.

The right NoSQL coding questions to screen NoSQL developers

Recommended roles for NoSQL coding questions

  • NoSQL engineer
  • Data engineer
  • Desarrollador de pila completa
  • Database analyst
  • JavaScript developer 
  • Desarrollador de Java
  • Junior data engineer
  • Middle data engineer
  • Senior data engineer 

How DevSkiller NoSQL coding questions and online tests work

DevSkiller NoSQL online tests are powered by the RealLifeTesting™ methodology. Analyze your applicants’ knowledge of the NoSQL database in a pre-determined test environment. Assess each applicants’ NoSQL knowledge, coding ability, problem-solving, and time-management skills.

Características principales

  • Analyze coding ability and not just academic ability
  • Save time and money with remote testing 
  • The RealLifeTesting™ methodology offers a greater user experience where candidates can use their own IDE, clone to GIT, run unit tests, and access Stack Overlow/Github/Google for research.
  • Stringent anti-plagiarism tools to ensure test accuracy
  • Observe tests in real-time
  • Resultados automatizados que los reclutadores no técnicos pueden entender
  • Tests available for junior, middle, and senior-level positions 

Skills covered in our NoSQL online tests

  • Angular 
  • HSQLDB 
  • MonogoDB 
  • Java 
  • Mongo 
  • MySQL 
  • PostgreSQL 
  • SQL 
  • Oracle

What to look for in NoSQL engineer

NoSQL (often referred to as Not Only SQL) is a term for databases that do not use relations to store data.  NoSQL databases vary depending on their data model. The main types are document, key-value, wide-column, and graph. NoSQL first appeared in the late 2000s when the cost of storage fell dramatically. 

Your NoSQL applicant should be familiar with relational databases such as MongoDB, ZooKeeper, and Apache Hadoop. Knowledge of operating systems such as Linux, Unix, Apache, and Tomcat is also a good sign of a qualified applicant. Finally, they should be able to recognize the three camps of NoSQL data representation; document-oriented databases, graph-based NoSQL databases, and key/value databases.

Like what you see but want more?

Do you want to test your applicants with your own custom test? No problem. With the DevSkiller online task wizard, you can build your own fully customizable tests. Choose which languages you want to assess, allocate a time limit, and define the scope all while monitoring your applicants’ process in real-time. Find your next NoSQL engineer today with our range of NoSQL interview questions and online tests. Free trials available! 

Want proof that our NoSQL online tests work?

We understand that making the investment in our screening tool is a big decision for every business. If you’re still unsure, just take a look at what some of our satisfied customers have to say:

Patrycja Kiljańska – Talent acquisition specialist at Spartez

“We’ve replaced a high-maintenance in-house solution with DevSkiller. Our process looks the same, however, the product gives us better performance. The results are also way easier to assess.”

Richard Williams – VP of engineering at Plutora 

“Thanks to automating the screening stage, we were able to reduce the interview rate by 50%. At the same time, the quality of candidates who make it to the interview stage is now much greater. DevSkiller adds an extra layer of quality to our technical hiring process”

Ivana Nikolic – HR Manager at ImpacTech 

“The greatest advantage for the candidates is that they can proceed with the tests at their own convenience. In case you have a candidate who is already working and is thinking about changing the career or moving to another company, it is also a time saver for them, as they do not have to take time off in order to attend numerous interviews in the search for a new position.”

Preguntas frecuentes

What is RealLifeTestingTM?

The RealLifeTestingTM methodology is the foundation of all DevSkiller NoSQL coding questions. Unlike other coding challenges or algorithmic puzzles, RealLifeTestingTM simulates real-world scenarios that your applicants would be likely to encounter. This kind of testing will provide you with a comprehensive understanding of your applicant’s skill level.

At its core, the RealLifeTestingTM stems from the belief that the best way to evaluate a developer’s development skills is with a work sample test that mirrors the actual development work they’ll do. The successful candidate should demonstrate a clear understanding and knowledge of NoSQL, display the ability to utilize resources like Stack Overflow, and possess critical thinking to determine the quickest and most efficient solution to problems they encounter. 

How are NoSQL online tests evaluated?

The DevSkiller platform gets to work automatically after the candidate either completes the test or the time elapses. The results are compiled into a report that is clear and easy to understand for non-technical professionals such as recruiters or hiring managers. Candidates are assessed on whether or not the solution they came up with would run (an essential factor in all software development), the number of errors in the code, quality of the code, and how it works in edge cases. DevSkiller ensures test accuracy with our range of anti-plagiarism tools.  

¿Cómo hacen los candidatos un examen?

DevSkiller’s NoSQL online tests can be taken remotely, at the convenience of each individual candidate. All a recruiter needs to do is send out the test invite. Each test invite can be set to be available for a specified amount of time. Candidates have the option to use our state fo the art in-browser IDE or complete the project on their favorite IDE and then clone the project to GIT. During the test, candidates can run unit tests to ensure their solutions are working the way they’re supposed to. Tests have a pre-defined time limit, and if a candidate runs out of time, the test is automatically evaluated. Reports are sent to the recruiter once they are generated.