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C# interview questions and online tests

The expert team at DevSkiller prepares C# interview questions and online tests aimed at hiring junior, middle, and senior-level C# developers.

DevSkiller C# interview questions and online tests are powered by RealLifeTesting™. The RealLifeTesting™ methodology is unique in that it tests candidates’ skills through real-world challenges rather than algorithmic problems. Recruiting your next C# developer can become a whole lot easier with DevSkiller C# interview questions and online tests.

Teknologier, der er omfattet:

Programmeringssprog: C#

C# frameworks and libraries: .NET, ASP.NET, MVC, Entity Framework, WCF, LINQ and others

Byg værktøjer: MSBuild

.NET
MIDDLE
Testede færdigheder
Varighed
70 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#

Programmeringsopgave - Niveau: Medium

.NET | C# | Population Statistical Data Analyzer - Kandidaten skal afslutte implementeringen af 4 metoder: to metoder, der analyserer data gemt som JSON og forbereder den korrekte træstruktur; de to andre metoder, der søger i træet og returnerer de korrekte oplysninger efter kriterier.

.NET
JUNIOR
Testede færdigheder
Varighed
73 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, .NET Core, Grundlæggende Fælles emner, C#, Logning, Parallel programmering, Visual Basic .NET

Programmeringsopgave - Niveau:

.NET | .NET Core, Microservices | Traffic volume report api - Færdiggør implementeringen af en mikroservice til rapporter, der skal abonnere på data, der er registreret af specialiserede mikroservices. Dataene skal gemmes i den lokale database. I fremtiden vil dataene blive brugt til at generere rapporter til kunderne.

.NET
SENIOR
Testede færdigheder
Varighed
106 minutter max.
Evaluering
Automatisk
Testoversigt

Huller i koden

vurdering af viden om ASP.NET, C#, Grundlæggende om sikkerhed, .NET Core, Grundlæggende Fælles emner, Entity Framework Core, Logning

Programmeringsopgave - Niveau: svær

.NET | .NET Core | Virksomhedswebside - Gennemfør implementeringen af en webside.

Siden kan vises på engelsk eller spansk afhængigt af brugerens kultur.

En bruger skal have kendskab til den lokaliserede dataannotation, de lokaliserede ressourcer og aktionsfiltrene.

C#
MIDDLE
Testede færdigheder
Varighed
160 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#

Programmeringsopgave - Niveau: Medium

.NET | MT101 Swift message parser og validator - Implementer en parser og en validator for data, der indeholder Swift MT101-meddelelser.

C#
JUNIOR
Testede færdigheder
Varighed
64 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, Grundlæggende Fælles emner, Visual Basic .NET

Huller i koden

vurdering af viden om .NET, Grundlæggende Fælles emner, C#, Visual Basic

Programmeringsopgave - Niveau:

.NET | Visual Basic | Sanktionsliste-tjeneste - Gennemfør implementeringen af en tjeneste, der scanner og leder efter transaktioner, der indeholder ord fra en sanktionsliste. Denne opgave tjekker den grundlæggende viden om VB.NET såsom grænseflader, klasser og undtagelser.

.NET
MIDDLE
Testede færdigheder
Varighed
156 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, Avanceret hukommelsesstyring .NET, C#, Grundlæggende principper for hukommelse, Bunke og stak, Tildeling af hukommelse, .NET Core, Grundlæggende Fælles emner, Logning

Programmeringsopgave - Niveau: Medium

.NET | .NET Core | MT101 Swift message parser and validator - Implementer en parser og en validator til data, der indeholder Swift MT101-meddelelser.

.NET
SENIOR
Testede færdigheder
Varighed
180 minutter max.
Evaluering
Automatisk
Testoversigt

Programmeringsopgave - Niveau: svær

.NET | Værktøjer til brugerdefineret kort med POI - Implementer værktøjer til søgning efter POI'er (på kortet) og beregn en optimal rute fra brugerens foretrukne punkter. Derudover skal du færdiggøre implementeringen af en selvhostet WCF-tjeneste, som skal levere denne funktionalitet.

.NET
JUNIOR
Testede færdigheder
Varighed
80 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#, EntityFramework, ASP.NET, ASP.NET MVC, MVC

Programmeringsopgave - Niveau:

.Net | ASP.Net | Bookstore Inventory - Implementer et par metoder til at administrere boghandelens lagerbeholdning.

C#
SENIOR
Testede færdigheder
Varighed
75 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#

Programmeringsopgave - Niveau: svær

.NET | C# | Tråde | Bankgateway til bookingtransaktioner i det centrale regnskabssystem - Implementer grænsefladen IBookingGateway (opret egen klasse i en separat fil i projektetBookingGatewayService og implementer den) og afslut implementer klassen BookingGatewayFactory, som skal oprette objekter af IBookingGateway.

.NET
MIDDLE
Testede færdigheder
Varighed
50 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#, EntityFramework

Programmeringsopgave - Niveau: Medium

.Net | Entity Framework | Bank Application Client DB Module - Testen verificerer EF-færdigheder såsom: gemme nye data, administrere objektsporing og lazy loading.

.NET
MIDDLE
Testede færdigheder
Varighed
115 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#

Programmeringsopgave - Niveau: Medium

.Net | .Net Core | Movie Repository - Implementer manglende repository-metoder til film i asp.net-appen. Opgaven kræver kendskab til sqlserver query language og brug af direkte forbindelse til databasen uden ORM.

C#
SENIOR
Testede færdigheder
Varighed
309 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#

Programmeringsopgave - Niveau: svær

.Net | .Net Core | Back end Alone - Implementer .NET Core MVC Model Binder og en simpel grafalgoritme til at understøtte anmodninger med et smart format. Denne opgave består af to mål. Den første er at implementere model binder, der korrekt parser indgående anmodning til objektiv struktur. Det andet mål er at sortere denne struktur (graf) før videre behandling.

.NET
JUNIOR
Testede færdigheder
Varighed
50 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#

Programmeringsopgave - Niveau:

.NET | C# | Bankinterface til Internet Banking System - Implementer en CreateTransfer-metode, som skal kontrollere og gemme de korrekte data, og en SearchTransfer-metode, som skal filtrere og returnere de korrekte oplysninger.

ASP.NET
MIDDLE
Testede færdigheder
Varighed
72 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#, EntityFramework, Entity Framework 6, ASP.NET, ASP.NET MVC, MVC

Programmeringsopgave - Niveau: Medium

.NET | Reservations App | Implementer valideringsregler - Implementer valideringsregler, der bruges, når du tilføjer en ny reservation.

.Net
MIDDLE
Testede færdigheder
Varighed
115 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#, ASP.NET, ASP.NET MVC, MVC

Programmeringsopgave - Niveau: Medium

.Net | SQLite | Movie Repository - Implementer manglende repository-metoder til ASP.NET-film-appen. Opgaven kræver kendskab til sqlserver query language og brug af direkte forbindelse til databasen uden ORM.

.Net
JUNIOR
Testede færdigheder
Varighed
35 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#, ASP.NET, ASP.NET MVC, MVC

Programmeringsopgave - Niveau:

.Net | ASP.Net MVC | Kommentarer Udfordring - Implementer en indekshandling for posts controller, så posts kan blive gengivet korrekt i Posts/Index viewet.

Csharp
JUNIOR
Testede færdigheder
Varighed
25 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#

Programmeringsopgave - Niveau:

.NET | GetWordFromText og Reverse - Implementer to metoder: den ene skal returnere et bestemt ord, og den anden skal returnere en omvendt streng af en overført inputværdi.

ASP.NET
MIDDLE
Testede færdigheder
Varighed
120 minutter max.
Evaluering
Manuel
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#

Opgave med gennemgang af kode - Niveau:

.NET - Codegennemgang af CollectionWrapper

Programmeringsopgave - Niveau: Medium

.NET | Reservations App | Implementer forespørgselsmetoder - Implementer to metoder i ReservationsService - GetByDay og GetHallsFreeHoursByDay.

ASP.NET
MIDDLE
Testede færdigheder
Varighed
95 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om .NET, C#

Programmeringsopgave - Niveau: Medium

.NET | Reservations App | Implementer forespørgselsmetoder - Implementer to metoder i ReservationsService - GetByDay og GetHallsFreeHoursByDay.

Recommended roles for our C# interview questions and online tests

  • C# Developer
  • Webudvikler
  • Junior C# Developer
  • Senior C# Developer
  • C# Programmer
  • .NET Developer Back-End Developer
  • C# .NET Developer
  • C# Web Developer
  • Full Stack .NET-udvikler
  • .NET-softwareudvikler
  • .NET Programmer
  • ASP.NET-udvikler

How our C# interview questions work

DevSkiller C# interview questions and online tests implement the RealLifeTesting™ methodology to challenge candidates to answer questions and solve problems, similar to those they have to deal with in the real world. The old days of developers reciting coding patterns were not efficient enough at deciphering who were the most qualified developers, RealLifeTesting™is the solution.

Within the initial screening stages of recruitment, recruiters can distinguish the exact strengths of a candidate. They can assess coding skills, critical thinking and how candidates handle time-management.

DevSkiller C# interview questions and online tests can provide your business with objective insight into exactly how well each of developer candidates will perform in the role.

Vigtigste funktioner

  • Gain in-depth insight into candidates’ coding ability
  • Online tests accessible from anywhere in the world
  • Implementing RealLifeTesting™ offering candidates a greater user experience: use of their own IDE and clone to GIT, run unit tests, and access Stack Overflow/Github/Google for research.
  • Robust tools to prevent plagiarism and ensure test accuracy
  • Observe candidates’ undertaking of tests in real time
  • Save time with non-technical automated results
  • A C# coding test can assess any level of experience

Skills covered in our C# interview questions and online tests

  • C#
  • .NET
  • JSON
  • NUnit
  • QA
  • Selen
  • Afprøvning
  • .NET 5
  • .NET Core
  • Grundlæggende Fælles emner
  • Entity Framework
  • Logning
  • Microservices
  • Parallel programmering
  • RESTful webtjeneste
  • Visual Basic .NET
  • Indsatsfiltre
  • Entity Framework Core
  • HTTP-hoveder
  • Annotation af lokaliserede data
  • Lokaliserede ressourcer
  • Logning
  • Grundlæggende om sikkerhed
  • Brugerkultur
  • Konfiguration af websiden
  • Grænseflader
  • Almindelige udtryk
  • RESTful API
  • Visual Basic
  • Avanceret hukommelsesstyring
  • Grundlæggende principper for hukommelse
  • Bunke og stak
  • Grænseflader
  • BST-træer
  • WCF
  • Klasser
  • Tråde

What to look for in a C# developer

Developed by Microsoft in 2000 to combine the computing ability of C++ with the simplicity of Visual Basic, C# is a programming language based on C++ and similar to Java. Found in almost all Microsoft products, it is used mainly for developing desktop applications. When recruiting for a C# developer there are several important factors to address.

Your C# developer candidate will need to possess knowledge of C# unit testing frameworks like; nUnit, SpecFlow, MSTest and xUnit. Your candidate should also know how to use C# building tools such as TFS, TeamCity, Jenkins, Cruise Control .NET and Azure DevOps (old TFS).

DevSkiller’s C# interview questions and online tests are the perfect asset to your business’s recruitment strategy. Our screening tool tests candidates online, and automatically generated reports present the results in a simple and easy to follow way. Which means you don’t have to be an expert in C#, to be able to hire the perfect candidate for the role.

Build your own custom C# interview questions and online tests

Perhaps you want to take our C# interview questions and online tests to the next level and customize them to get more out of them? No problem.

The DevSkiller task wizard lets you build custom tests using your own codebase. You can select languages other than C# if required and choose the exact skills and technologies you want to test. With our customized C# interview questions and online tests you set the difficulty-level and duration of each test, all while being able to observe candidates in real-time. Finding your next C# developer has never been simpler.

Like the look of our C# interview questions and online tests but need proof?

If you’re still not 100% convinced by our screening tool, don’t worry. It’s sensible to want some assurances before you part with your company’s finances. Check out the following case study from one of our past clients and see what we did for them:

DB1

DB1 is a software development company. They develop robust and reliable solutions for medium and large companies.

When it came to DB1’s recruitment process, the company had 5 stages, one of them being a technical challenge. Candidates had 5 days to complete the challenge and the company needed the assistance of a developer to assess the results. Often the candidates would become disengaged with the challenges or need reminding to complete the tests on time. Thanks to the implementation of DevSkiller testing, DB1 saw instant improvement in their recruitment process.

With DevSkiller the entire technical test stage of recruitment for DB1 decreased, from around 5 – 10 days, to between 3 – 7 days with DevSkiller. Also, not only did the customer experience improve, but because our system offers automatically generated test results, there is now no need for an additional developer to be brought in for the assessment of tests.

DB1 quickened up their whole technical screening process. They are also much more confident that the candidates they select to proceed, are the right ones for the role.

 “DevSkiller reduced the time on the technical test stage and reduced our dependence on other areas. It was faster to approve candidates for the next stage since we had an automatic score. Now the revision process is faster, most of the time we have instant results and scores that help us decide which candidate is approved to the next stage of the selection process. Our candidates say it’s a great platform and it really tests their knowledge.”

Nathalia G.R. Da Silva– Employer Branding & Tech Recruiter at DB1 Group

Ofte stillede spørgsmål

Hvor lang tid tager det at opsætte DevSkiller?

DevSkiller is designed to quicken up your recruitment process, so it is quick and simple to set-up. Really all that is required is for you to create your account with us. Once registered, there are hundreds of predefined C# tests at your disposal.

Testing is carried out online so all you need to do is send out a test invite and your candidates can get started working on their C# interview questions and online tests. We offer a wide selection of junior, middle, and senior-level C# online tests and you can limit how long each test will last.

Hvad synes kandidaterne om DevSkiller-testene?

We receive regular feedback that candidates enjoy working on DevSkiller’s variety of online tests. For most, having a chance to finally prove their skills in a fair setting is refreshing and they appreciate that opportunity. Many developers often get asked to recite coding patterns and algorithms. Outdated challenges that don’t accurately reflect the work they do. By implementing RealLifeTesting into our C# interview questions and online tests, DevSkiller can get much closer to the real thing.

Candidates love that at DevSkiller we use conventions that are normal to developers, like unit testing, and cloning to GIT from a personal IDE. Once they are given a DevSkiller test, candidates appreciate that our approach is different to what they might have encountered before and that they are finally being given the chance to prove their skills in a fair setting.

Hvad gør du ved plagiat?

You need to be able to trust the results of our tests so we do everything in our power to eliminate the chance of any plagiarism. A number of anti-plagiarism tools are implemented including checking the candidate’s entered code and looking at the way each question is answered. The answers are automatically cross-referenced with every answer received in our system, if there is a match we can categorically confirm that the candidate cheated and they can be eliminated from the assessment.

We can also use screen recording to check if the candidate is looking at a different screen when undertaking a test. As well as to implement a range of social listening tools, check the candidate’s IP address and use live pair notifications. This combination of tools means plagiarism will not go undetected.