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.NET Online Test

The Dot Net Online Test uses scenario-based MCQs to evaluate candidates on their proficiency in working with Microsoft .NET technologies, including the .NET framework, C#, and ASP.NET. The test assesses candidates' ability to write .NET code, create and manage .NET projects, use .NET libraries and frameworks, and develop web applications using ASP.NET.

Covered skills:

  • .NET Framework
  • C# Programming
  • Web API
  • MVC
  • Coding
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About the .NET Test


The .NET Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Ability to effectively utilize .NET Framework in application development
  • Proficiency in C# programming language
  • Understanding and implementation of Web API
  • Knowledge of MVC (Model-View-Controller) architecture
  • Strong coding skills
  • Ability to work with databases in .NET applications
  • Knowledge of object-oriented programming principles
  • Experience with handling exceptions and errors
  • Understanding of .NET security and authentication
  • Knowledge of unit testing in .NET applications
  • Expertise in handling HTTP requests and responses
  • Familiarity with asynchronous programming in .NET

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Non-googleable questions


We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 15,000+ questions. The actual questions on this .NET Online Test will be non-googleable.

🧐 Question

Hard

Classes and Constructors
OOPs
Polymorphism
Object-oriented Programming
Solve
What is the output of the following C# code?
 image

Easy

Arrays and Exceptions
Arrays
Exceptions
Solve
What is the output of the following C# code?
 image

Medium

Multiple Namespaces
Namespace Management
Solve
Class Student exists in both firstnamespace and secondnamespace namespaces. Which of the following are the correct ways to use the Student class?
 image

Medium

Static and constructors
OOPs
Solve
What is the output of the following C# code?
 image

Medium

AppDomain Resource Scoping
Configuration Management
AppDomain
Resource Scoping
Solve
Consider a scenario where you have a .NET application that needs to load different configurations for different components running in separate AppDomains. You have the following code structure:
 image
The `ConfigManager` class is designed to load and store configurations for different domains. What will be the output of this program, assuming `ConfigA.xml` and `ConfigB.xml` contain distinct settings?
A: Config in DomainA: [Settings from ConfigA.xml], Config in DomainB: [Settings from ConfigB.xml]
B: Config in DomainA: null, Config in DomainB: null
C: Config in DomainA: [Settings from ConfigB.xml], Config in DomainB: [Settings from ConfigA.xml]
D: A runtime exception is thrown due to cross-domain operation.
E: Config in DomainA: [Settings from ConfigA.xml], Config in DomainB: [Settings from ConfigA.xml]
F: The output is unpredictable and depends on the runtime environment.

Medium

IDisposable Pattern
Garbage Collection
IDisposable Pattern
Memory Management
Solve
Consider the following .NET C# code snippet implementing IDisposable pattern:
 image
What is true about the garbage collection and resource management in this code?
A: The finalizer will always be called when the object is garbage collected.
B: The `Dispose` method is only called when explicitly invoked.
C: Managed resources will be freed in the finalizer.
D: Unmanaged resources are only freed if `Dispose` is called with `true`.
E: The `GC.SuppressFinalize` method prevents the finalizer from being called.
F: The `using` statement ensures that unmanaged resources are always freed.

Medium

Remoting and Object Lifetime
.NET Remoting
Object Lifetime
MarshalByRefObject
Solve
In a .NET application, you are using .NET Remoting to communicate between different application domains. You have the following server-side code:
 image
This `RemoteObject` class is hosted in one application domain and accessed from another. Considering the lease settings (InitialLeaseTime, SponsorshipTimeout, RenewOnCallTime), what will happen if a client accesses the `GetData` method every 3 seconds?
A: The object will be disconnected after 5 seconds, regardless of the calls.
B: The lease will be renewed, and the object remains accessible as long as it's called every 3 seconds.
C: The object will be disconnected after 7 seconds, even with the regular calls.
D: An exception will be thrown due to lease timeout.
E: The lease will be renewed indefinitely without disconnection.
F: The object will be disconnected only if there is a call after 5 seconds but within 7 seconds.

Easy

Registration Queue
Logic
Queues
Sorting By Custom Order
Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.
For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.
⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

Medium

Visitors Count
Strings
Logic
String Parsing
Character Counting
Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 
Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 
⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.
🧐 Question🔧 Skill

Hard

Classes and Constructors
OOPs
Polymorphism
Object-oriented Programming

2 mins

C#
Solve

Easy

Arrays and Exceptions
Arrays
Exceptions

2 mins

C#
Solve

Medium

Multiple Namespaces
Namespace Management

2 mins

C#
Solve

Medium

Static and constructors
OOPs

3 mins

C#
Solve

Medium

AppDomain Resource Scoping
Configuration Management
AppDomain
Resource Scoping

3 mins

.NET
Solve

Medium

IDisposable Pattern
Garbage Collection
IDisposable Pattern
Memory Management

2 mins

.NET
Solve

Medium

Remoting and Object Lifetime
.NET Remoting
Object Lifetime
MarshalByRefObject

3 mins

.NET
Solve

Easy

Registration Queue
Logic
Queues
Sorting By Custom Order

30 mins

Coding
Solve

Medium

Visitors Count
Strings
Logic
String Parsing
Character Counting

30 mins

Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Classes and Constructors
OOPs
Polymorphism
Object-oriented Programming
C#
Hard2 mins
Solve
Arrays and Exceptions
Arrays
Exceptions
C#
Easy2 mins
Solve
Multiple Namespaces
Namespace Management
C#
Medium2 mins
Solve
Static and constructors
OOPs
C#
Medium3 mins
Solve
AppDomain Resource Scoping
Configuration Management
AppDomain
Resource Scoping
.NET
Medium3 mins
Solve
IDisposable Pattern
Garbage Collection
IDisposable Pattern
Memory Management
.NET
Medium2 mins
Solve
Remoting and Object Lifetime
.NET Remoting
Object Lifetime
MarshalByRefObject
.NET
Medium3 mins
Solve
Registration Queue
Logic
Queues
Sorting By Custom Order
Coding
Easy30 minsSolve
Visitors Count
Strings
Logic
String Parsing
Character Counting
Coding
Medium30 minsSolve
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Why you should use Pre-employment .NET Online Test?

The .NET Online Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • Ability to write clean and efficient C# code
  • Proficiency in using .NET Framework
  • Experience in developing Web API services
  • Knowledge of MVC architecture
  • Strong understanding of coding concepts and principles
  • Experience with integrating external APIs
  • Familiarity with database management and SQL
  • Ability to troubleshoot and debug code
  • Experience in implementing security measures
  • Understanding of asynchronous programming and multi-threading

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the .NET Online Test?

.NET Framework: The .NET Framework is a software framework developed by Microsoft that provides a programming model for building, deploying, and running applications. It includes a large library of pre-built code and supports multiple programming languages, allowing developers to build different types of applications such as desktop, web, and mobile. Measuring knowledge of the .NET Framework in this test is important to assess the candidate's ability to create robust and scalable applications using Microsoft technologies.

C# Programming: C# is a modern, versatile programming language developed by Microsoft. It is widely used for building Windows desktop applications, web applications, and games. Understanding C# is crucial in this test as it allows recruiters to evaluate a candidate's ability to write clean and efficient code, handle memory management, and implement object-oriented programming principles.

Web API: Web API is a framework provided by Microsoft that allows developers to build HTTP services that are consumed by various clients such as web browsers, mobile applications, and desktop applications. Testing knowledge of Web API in this assessment helps recruiters gauge a candidate's expertise in designing and implementing RESTful APIs, handling authentication and authorization, and working with data formats like JSON and XML.

MVC: MVC (Model-View-Controller) is a design pattern commonly used in software development to separate the concerns of an application into three interconnected components. It provides a structured approach to building web applications, making them easier to maintain and modify. Including MVC in this test allows recruiters to assess a candidate's understanding of architectural patterns, routing, data binding, and handling user input in web development projects.

Coding: Coding skills are the foundation of software development. This skill measures a candidate's ability to write clean, efficient, and maintainable code. It encompasses various aspects such as algorithms, data structures, problem-solving, and code optimization. Evaluating coding skills in this test allows recruiters to judge a candidate's proficiency in translating requirements into functional code and their ability to produce high-quality software solutions.

Full list of covered topics

The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for .NET Online Test to be based on.

Data Types
Variables
Operators
Control Flow
Arrays
Strings
Methods
Classes
Inheritance
Polymorphism
Access Modifiers
Exception Handling
.NET Framework Basics
Object-Oriented Programming
LINQ (Language Integrated Query)
Entity Framework
ASP.NET
MVC Routing
Model Binding
Razor Syntax
Partial Views
Action Filters
Web API Basics
HTTP Verbs
Model Validation
Content Negotiation
Versioning and Routing
Unit Testing in .NET
Mocking
Asserting
Databases
ADO.NET
SQL Queries
Entity Framework Core
Database Migrations
Security in .NET
Authentication and Authorization
JSON Web Tokens (JWT)
Cross-Site Scripting (XSS)
Cross-Site Request Forgery (CSRF)
Caching
Error Logging
Distributed Caching
Asynchronous Programming
Async/Await
Parallel Programming
Multithreading
IO Operations
Serialization
Reflection
NuGet Package Management
Source Control (Git, TFS)
Deployment Strategies
Continuous Integration
Debugging
Performance Optimization
Code Quality (Code Reviews, Static Analysis)

What roles can I use the .NET Online Test for?

  • .NET Developer
  • ASP .NET Developer
  • .NET Core Developer
  • Software Developer

How is the .NET Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Knowledge of object-oriented programming (OOP) principles
  • Ability to optimize code for performance
  • Experience in unit testing and test-driven development (TDD)
  • Understanding of RESTful architecture
  • Ability to work with front-end technologies like HTML and CSS
  • Experience in version control systems like Git
  • Knowledge of LINQ (Language Integrated Query)
  • Familiarity with agile development methodologies
  • Ability to design and develop scalable applications
  • Understanding of design patterns and best practices

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

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Non-googleable Questions

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MCQ Questions

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Typing Questions

Personality Questions

Custom Questions

Ready-to-use Tests

Custom Tests

Custom Branding

Bulk Invites

Public Links

ATS Integrations

Multiple Question Sets

Custom API integrations

Role-based Access

Priority Support

GDPR Compliance

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Have questions about the .NET Hiring Test?

What is .NET Online Test?

.NET Online Test is designed to evaluate a candidate's proficiency in the .NET Framework and C# Programming. It is used by recruiters to assess skills relevant to .NET roles in a 40-minute test.

Can I combine .NET Online Test with SQL questions?

Yes, recruiters can request a custom test that includes SQL questions. Check out our C#, .NET & SQL Test for more details.

What skills are evaluated in the .NET Online Test?

.NET Online Test evaluates knowledge of the .NET Framework, C# Programming, Web API, MVC, and coding skills. It contains 5 C# questions, 5 .NET questions, and 1 C# coding challenge.

How to use .NET Online Test in my hiring process?

Use the .NET Online Test as a pre-screening tool at the beginning of your recruitment process. Add the test link to your job post or directly invite candidates via email. It helps identify skilled candidates early.

Can I test C# and .NET together in a test?

Yes, you can. Our C# & .NET Test is designed for this purpose, combining questions on both C# and .NET skills to give a comprehensive assessment.

What are the main .NET-related tests?
Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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