C# and .NET Online Test
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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
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.
Which statements are true for an int/Integer built in .NET data type?
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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
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
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