Search test library by skills or roles
⌘ K

About the test:

The C# test has scenario-based MCQ questions to evaluate C# basics (variables, functions, types etc.), C# OOP concepts (classes and design patterns), efficient C# usage (exceptions handling, garbage collection etc.) and the ability to scale C# programs using Asynchronous programming. The test uses simple coding questions to evaluate hands-on C# programming knowledge.

Covered skills:

  • Use of variables
  • OOP concepts (Objects; Classes; Methods)
  • functions and data types
  • Inheritance and polymorphism
See all covered skills

9 reasons why
9 reasons why

Adaface C# Online Test is the most accurate way to shortlist C# Developers



Reason #1

Tests for on-the-job skills

The C# online assessment test is designed and validated by industry experts to assess C# skills of the candidate. Top tech companies are using our C# programming test to reduce candidate screening time by 85%.

The test evaluates the candidates on key C# skills hiring managers look for:

  • Core features of programming – variables, constants, functions and data types
  • Control the flow of programs using conditional statements. Using arrays and lists.
  • Working with C# types- properties, fields and access modifiers
  • Work with classes, constructors, fields, properties, methods and indexers (OOP Concepts)
  • Developing loosely-coupled, testable and extensible applications using interfaces
  • Ability to handle errors and avoid them
  • Knowledge of delegates, events, and garbage collection basics
  • Asynchronous programming and data security - encrypting user files and hash data

The test includes coding questions to evaluate hands-on C# programming skills.

Reason #2

No trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface ->
Reason #3

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.

These are just a small sample from our library of 10,000+ questions. The actual questions on this C# Online Test will be non-googleable.

🧐 Question

Medium

Classes and Constructors
OOPs
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
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

Easy

Registration Queue
Logic
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

Longest Road
logic
hashmaps
Solve
A startup company E-Motors is building driverless automated cars. The car contains a sensor that checks the road quality for the next N meters to decide the optimal speed at which the cars should move. We are given recorded data by the sensor in the form of an array, where each element of the array is the rating given to 1 meter of the road in sequence. 

The rating given by the sensor is from 1 to 100, where 100 represents the road with the best condition, and any rating above 60 is optimal. Find the longest stretch of road in meters that is categorized as optimal by the sensor.

The input is an array of "strings" which needs to be converted from string to integer/number inside the function.

Medium

Visitors Count
Strings
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

Medium

Classes and Constructors
OOPs
2 mins
C#
Solve

Easy

Arrays and Exceptions
Arrays
Exceptions
2 mins
C#
Solve

Medium

Multiple Namespaces
2 mins
C#
Solve

Medium

Static and constructors
OOPs
3 mins
C#
Solve

Easy

Registration Queue
Logic
30 mins
Coding
Solve

Medium

Longest Road
logic
hashmaps
25 mins
Coding
Solve

Medium

Visitors Count
Strings
30 mins
Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Classes and Constructors
OOPs
C#
Medium2 mins
Solve
Arrays and Exceptions
Arrays
Exceptions
C#
Easy2 mins
Solve
Multiple Namespaces
C#
Medium2 mins
Solve
Static and constructors
OOPs
C#
Medium3 mins
Solve
Registration Queue
Logic
Coding
Easy30 minsSolve
Longest Road
logic
hashmaps
Coding
Medium25 minsSolve
Visitors Count
Strings
Coding
Medium30 minsSolve
Reason #4

1200+ customers in 75 countries

Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment C# Online Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the C# Online Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

Reason #7

Detailed scorecards & comparative results

Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

Reason #9

Advanced Proctoring


How To Screen Senior C# Developers

We customize the assessment based on the seniority level expected from the candidates. The customization happens on two levels:

  • Advanced topics will be picked for designing MCQ questions
  • Coding question will be of a higher difficulty level to ensure it evaluates the usage of advanced C#

Here are a few topics we include for designing Senior C# Engineer tests:

  • Knowledge of common problems: classes vs structures, abstract classes vs interfaces, creational patterns vs constructors
  • Avoiding common implementation smells such as poor naming, excessively long methods, output parameters
  • Avoiding common architectural design smells such as primitive obsession, hidden dependencies
  • Measuring and optimizing the memory footprint of your code
  • Efficiently structuring code with structural and creational design patterns
  • Multi-step object construction with the Builder pattern
  • Core multi-threading knowledge: data exchange, safe thread usage, crashes
  • Dealing with problems of asynchronous code, like race conditions, deadlocks, livelocks and synchronization issues

What roles can I use the C# Online Test for?

  • C# Developer
  • C# Programmer
  • Senior C# Engineer
  • Software Developer (C#)
  • C# .NET Developer
  • System Analyst (C#)
  • Unity Programmer
  • Senior Software Engineer (C#)

What topics are covered in the C# Online Test?

Types and Variables
Expressions and Operators
Arrays
Control Statements
Functions
Classes, Objects and Methods
Error-handling
Serialization
Dealing with Null values
Object-oriented Programming (OOP)
Inheritance and Polymorphism
API development
Mult-threading
Garbage Collector
Memory footprint
Singletons
Prototype Pattern
Adapter Pattern
File-handling
Data-streaming
Generics
Delegates
Lambda Expressions
Events
LINQ
Streams
Memory management
Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

C# Online Test FAQs

Can I evaluate .NET along with C#?

Yes. We support evaluating C# and .NET in the same assessment. You can review our standard ready-to-go C# + .NET test to understand how the assessment would be designed. For customized assessments, we design the questions as per your job description and the final test will evaluate C#, .NET and coding skills together.

Can I evaluate .NET MVC in the same assessment?

Yes. We support evaluating C# and .NET MVC in the same assessment. For customized assessments, we design the questions as per your job description and the final test will evaluate C#, .NET MVC and coding skills together.

Can I evaluate frontend skills along with C#?

Yes. You can evaluate multiple skills in a single assessment. You can check our standard HTML/ CSS, React, Angular, Vue assessments to get a sense of what questions would be asked. You can get a custom assessment designed that has questions to evaluate all the must-have skills of your job description. So for a standard Full Stack React C# developer role, the test will have questions to evaluate React, JavaScript, HTML/ CSS, ASP.NET, C# and coding skills.

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.

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
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser

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.

Join 1200+ companies in 75+ countries.
Try the most candidate friendly skills assessment tool today.
Ready to use the Adaface C# Online Test?
Ready to use the Adaface C# Online Test?
Chat with us
40 min tests.
No trick questions.
Accurate shortlisting.
Terms Privacy Trust Guide

🌎 Pick your language

English Norsk Dansk Deutsche Nederlands Svenska Français Español Chinese (简体中文) Italiano Japanese (日本語) Polskie Português Russian (русский)
Ada
Ada
● Online
Previous
Score: NA
Next
✖️