Job offersCompaniesTestsBlogI'm an employerSign upLog in
fr
fr
Home>IT Tests>Questions>C# - Fundamentals

40 interview questions on C# - Fundamentalsfor developers (2025)

Test your technical skills before an interview of C# - Fundamentals with 40 corrected questions. Beginner, Intermediate or Expert level.

or
Technology
Profession
Test
Sort by
Newest
Most popular
Last review
Filter by
Published
3813
To review
35
40 questions
Easy
7 votes1126 runs1 comment

Write a C# class with a private int age field and getter and setter methods for it.

Back-end developer
access
field
Anonymous authorat Mar 16, 2022
Easy
6 votes1076 runs0 comment

Simple inheritance between a parent class and a child class in C#

Back-end developer
inheritance
classes
Anonymous authorat Mar 16, 2022
Medium
4 votes1197 runs
1 comment

An event in an ASP.NET application:

Back-end developer
asp.net
controller
Anonymous authorat Mar 16, 2022
Easy
4 votes390 runs
1 comment

Initialize a new Vehiclue object containing a string field in C#

Back-end developer
classes
objects
Auroreat Aug 30, 2024
Medium
2 votes1098 runs
2 comments

The PFX Framework:

Back-end developer
multithreading
parallelization
c#
Anonymous authorat Mar 16, 2022
Easy
2 votes1049 runs0 comment

How to declare a SortedList<Key,Value> in C#

Back-end developer
collections
generics
Anonymous authorat Mar 9, 2023
Hard
2 votes1012 runs0 comment

Write a C# function that displays a matrix.

Back-end developer
arrays
loops
Anonymous authorat Mar 25, 2022
Easy
2 votes383 runs0 comment

What is the new syntax for creating an object in C# 9.0?

Back-end developer
object initializer
Auroreat Aug 30, 2024
Hard
2 votes271 runs0 comment

What is a property in C#?

Back-end developer
properties
methods
fields
Anonymous authorat Jan 30, 2025
Medium
1 vote376 runs0 comment

What is an ASPX file?

Back-end developer
asp.net
c#
html
Auroreat Aug 30, 2024
Easy
1 vote318 runs0 comment

Choose the two correct answers:

Back-end developer
arrays
variables
Anonymous authorat Mar 16, 2022
Hard
0 vote1063 runs
1 comment

In C#, a thread:

Back-end developer
c#
thread
asynchronous
Anonymous authorat Mar 16, 2022
Medium
0 vote1061 runs1 comment

How to deploy an ASP.NET application

Back-end developer
config
deployment
Anonymous authorat Mar 16, 2022
Hard
0 vote1028 runs
3 comments

Write the constructors of a public class Platane that includes a protected int nb_branche field and inherits from a public Arbre class including the protected string type_arbre field.

Back-end developer
constructors
inheritance
Anonymous authorat Aug 23, 2024
Medium
0 vote989 runs0 comment

About objects of type List<T>:

Back-end developer
list
sort
add
Anonymous authorat Mar 16, 2022
Easy
0 vote975 runs2 comments

In a derived class: We must implement the methods of an abstract parent class in the derived classes, You can override a predefined method with the virtual attribute in the parent class

Back-end developer
inheritance
abstract
Anonymous authorat Jan 30, 2023
Easy
0 vote897 runs0 comment

Write a C# program that prints 6WeLoveDevs to the console.

Back-end developer
console
strings
Anonymous authorat Mar 25, 2022
Easy
0 vote717 runs1 comment

Lists in C#:

Back-end developer
list
c#
Yona Eisenbergat Mar 28, 2023
Easy
0 vote681 runs0 comment

About interfaces in C#

Back-end developer
interfaces
Anonymous authorat Mar 16, 2022
Medium
0 vote559 runs0 comment

Windows Presentation Foundation (WPF) :

Back-end developer
gui
xaml
c#
Anonymous authorat Mar 16, 2022