C# and .NET Online Test

TestDome skill assessments are used by more than 8,000 companies and 880,000 test takers.

For Jobseekers

Practice your skills and earn a certificate of achievement when you score in the top 25%.

Take a Practice Test

For Companies

Test candidates with real-world problems and interview the best ones.

Sign Up to Offer this Test

About the test

The C# and .NET online test assesses knowledge of the .NET framework and its class library. This test includes live coding tasks in the C# programming language as it is the most used language for .NET.

The assessment includes work-sample tasks such as:

  • Working with classes, objects, and interfaces to write reusable code.
  • Implementing and properly using algorithms and data structures to optimize application performance.
  • Using the Async-Await pattern to work with asynchronous code.

A good .NET developer needs a solid understanding of the C# programming language and the .NET framework class library in order to write robust and maintainable code.

Sample public questions

Easy
10 min
code
Public
C#
Arrays

Implement the UniqueNames method. When passed two arrays of names, it will return an array containing the names that appear in either or both arrays. The returned array should have no duplicates.

For example, calling MergeNames.UniqueNames(new string[]{'Ava', 'Emma', 'Olivia'}, new string[]{'Olivia', 'Sophia', 'Emma'}) should return an array containing Ava, Emma, Olivia, and Sophia in any order.

Easy
1 min
mca
Public
.NET
Class Library

Which statements are true for an int/Integer built in .NET data type?

For jobseekers: get certified

Earn a free certificate by achieving top 25% on the C# and .NET test with public questions.

Take a Certification Test

Sample silver certificate

Sunshine Caprio

Java and SQL
TestDome
Certificate
TestDome logo icon

For companies: premium questions

Buy TestDome to access premium questions that can't be practiced.
Get money back if you find any premium question answered online.

Sign Up to Offer this Test

71 more premium C# and .NET questions

Enum, String, NET Versions, Order Chars, Max Sum, Gearbox, Integer to Object, Memory Leak, Product Refactoring, Sort Params, Sum of Numbers, Delayed Print, Third Party Components, String Operations, Fire Dragon, Animal Hierarchy, Racer, Blog Posts, Read First Line, Prefix, Citizen Income, Bicycle, Chinese Box, Car Rental, Eye of the Storm, Document Store, Snapshot, Shipping, Moving Total, Book Sale, Driver Exam, Ingredient Tuple, Classroom, Unique Product, Username, Weighted Average, Kilometer Converter, Stack to List, Document Counter, Disposable Wrapper, Platformer, String Occurrence, Hobbies, Vectors, Language Teacher, Read Write Execute, Node, Friend, Patient Class, Internal Nodes, Crop Ratio, Unique Numbers, Wheel Defects, Shining Star, Log Parser, Shelf Test, Chain Link, Log Patch, Worker, Veterinarian, Date Transform, Window Manager, Ceramic Store, Stories, Paper Strip, Segment, Procedural Generator, XML Navigation, Flight Connections, Paragraph, Nullable Employee.

Skills and topics tested

  • .NET
  • Enum
  • Class Library
  • CLR
  • LINQ
  • C#
  • Algorithmic Thinking
  • Accessibility Levels
  • OOP
  • Boxing and Unboxing
  • Memory Management
  • Refactoring
  • Pass by Reference
  • Async-Await
  • Multithreading
  • Package Manager
  • StringBuilder
  • Higher Order Function
  • Interfaces
  • Abstract Class
  • Synchronization
  • Eager Loading
  • Entity Framework
  • Lazy Loading
  • Exceptions
  • Field Modifiers
  • Data Structures
  • Sorting
  • Bug Fixing
  • Language
  • Lists
  • Arithmetic
  • HashSet
  • Dictionary
  • Tuples
  • Properties
  • Regex
  • Strings
  • Inheritance
  • Method Overriding
  • Complexity
  • Stack
  • Destructors
  • Linked List
  • Stream
  • Iteration
  • Arrays
  • Recursion
  • Tree
  • Graphs
  • Integer Division
  • TDD
  • Serialization
  • XML
  • Test Case Design
  • Unit Testing
  • Extension Methods
  • Queue
  • Dynamic Programming
  • Random
  • Dynamic Objects
  • Null Coalescing Operator
  • Null Conditional Operator

For job roles

  • .NET Developer
  • Back-End Developer
  • C# Developer
  • Web Developer

Sample candidate report

What others say

Decorative quote

Simple, straight-forward technical testing

TestDome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.

Jan Opperman, Grindrod Bank

Product reviews

G2 - Crowd Badge
G2 - High Performer (2022)
Capterra - 4.5 Stars
Capterra - Shortlist (2022)

Used by

Solve all your skill testing needs

150+ Pre-made tests

From web development and database administration to project management and customer support. See all pre-made tests.

90+ skills

From JavaScript and SQL to English and customer support. See all questions to filter by skill.

Multi-skills Test

Mix questions for different skills or even custom questions in one test. See an example.

How TestDome works

1

Choose a pre-made test
or create a custom test

2

Invite candidates via
email, URL, or your ATS

3

Candidates take
a test remotely

4

Sort candidates and
get individual reports

Want to know more?

Related C# and .NET Tests: