C# and .NET Online Test
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The C# and .NET online test assesses candidates' knowledge of programming in the C# language and their knowledge of the .NET Framework.
It's an ideal test for pre-employment screening. A good C# developer, capable of working on the back-end or the full-stack of an application, needs to be able not only to solve problems using C# but also to leverage the utilities and classes provided by the .NET Framework.
This online test requires candidates to solve coding problems in C# and answer questions about the features of the .NET Framework.
Recommended Job Roles
.NET Developer
Back-End Developer
C# Developer
Web Developer
Sample Candidate Report
Sample Free Questions
Integer
1min
-
Easy
Easy
-
MCA
.NET
Class library
Public
.NET
The .NET framework, developed by Microsoft, provides a large class library and language interoperability. This makes it an essential skill for a programmer working with a Microsoft stack.
Class library
Reusing a properly engineered and thoroughly tested class library is the best way to keep your code concise, performant and reliable.
Public
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.
Which statements are true for an int/Integer built in .NET data type?
(Select all acceptable answers.)
Inheritance
2min
-
Easy
Easy
-
MCA
.NET
OOP
Public
.NET
The .NET framework, developed by Microsoft, provides a large class library and language interoperability. This makes it an essential skill for a programmer working with a Microsoft stack.
OOP
Object-oriented programming is a paradigm based on encapsulating logic and data into objects, which may then contain fields and procedures. Many of the most widely used programming languages are based on OOP, making it a very important concept in modern programming.
Public
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.
A class inherits a base class and it overrides a method from that base class.
Select all possible forms of the base class and its method:
(Select all acceptable answers.)
Alert Service
10min
-
Easy
Easy
-
CODE
C#
Refactoring
Public
C#
The C# programming language is a simple, modern, general-purpose, object-oriented programming language. Having a basic familiarity with the programming language used on the job is a prerequisite for quickly getting up to speed.
Refactoring
The process of restructuring existing computer code without changing its external behavior. It is essential for keeping code readable and maintainable.
Public
Public questions (free account) are common interview questions. They are great for practicing, or if you want to filter candidates using the classic problems.
Refactor the AlertService and AlertDAO classes:
- Create a new interface, named IAlertDAO, that contains the same methods as AlertDAO.
- AlertDAO should implement the IAlertDAO interface.
- AlertService should have a constructor that accepts IAlertDAO.
- The RaiseAlert and GetAlertTime methods should use the object passed through the constructor.
Premium Questions
The premium question library contains our unique, hand-crafted questions. We offer a refund if you find any of them answered online.
Questions
Prefix, Bicycle, Classroom, Runner, Disposable Wrapper, Read Write Execute, Needle, Log Parser, Driver Exam, Vectors, Crop Ratio, Chicken, Racer, Paragraph, Username, Chain Link, Hobbies, Sort Params, Node, Programmer Teacher, Enum, Read First Line, Stack to List, String, Third Party Components, Integer to Object, NET Versions, Order Chars, Delayed Print, Product Refactoring, Snapshot, Date Transform, Document Store, Procedural Generator, Memory Leak, Document Counter, Adder, Shelf, Internal Nodes, Window Manager, Moving Total, Entry, Unique Numbers, Rare, Paper Strip, Max Sum, Friend, Remove Repetitions, Unique Name, Log Patch, Stories, Train, Platformer, Shipping, Segment, Eye of the Storm, Chinese Box, Weighted Average, Gearbox, Sum of Numbers, Shining Star, Unloading TrucksSkills
C#C#
The C# programming language is a simple, modern, general-purpose, object-oriented programming language. Having a basic familiarity with the programming language used on the job is a prerequisite for quickly getting up to speed.
LINQ
LINQ provides a compile functional interface for querying datasets. A good .NET developer should be able to take full advantage of this.
Language
A programmer should use a language as a tool, always taking advantage of language-specific data types and built-in functions.
Bug fixing
Everyone makes mistakes. A good programmer should be able to find and fix a bug in their or someone else's code.
Memory management
Memory management allows programs to request memory dynamically from the operating system, and free it for reuse when no longer needed. Many modern programming languages automate this process; however, it should still be an important consideration when implementing an application.
OOP
Object-oriented programming is a paradigm based on encapsulating logic and data into objects, which may then contain fields and procedures. Many of the most widely used programming languages are based on OOP, making it a very important concept in modern programming.
Arithmetic
Arithmetic is a fundamental branch of mathematics. An understanding of arithmetic concepts, and their application, is important for every candidate.
Strings
The string data structure is used to represent text. It is one of the most commonly used data structures. Therefore, every programmer should be skilled at string manipulation.
Stream
A stream is a sequence of data elements made available over time. It is particularly useful for tasks that may benefit from being asynchronous, including tasks such as I/O processing or reading from a file, and as such is important for developers to understand.
Serialization
Familiarity with data serialization to and from formats such as XML and JSON is important as it is commonly used for interprocess communication
Exceptions
Exceptions exist in most modern programming languages, making it important for a programmer to understand them and know how to handle them.
Searching
Every programmer should be familiar with data-searching methods, as they are very common in data-analysis processes.
Multithreading
Multi-threading allows a process to make more efficient use of modern hardware by allowing code to execute asynchronously. It can drastically improve the performance of any app; however, it can be tricky to get right, making this an important topic for any programmer.
Data structures
Choosing the right data structure to solve a problem can have huge implications on the performance of an application. Knowing when to use a specific data structure is one of the most important skills for a programmer.
Arrays
An array is a container of a fixed number of objects of a similar type. It is a fundamental component of most programming languages.
Iteration
Iteration is the act of repeating a process, or cycling through a collection. Iteration is one of the fundamental flow control tools available to developers.
.NET
The .NET framework, developed by Microsoft, provides a large class library and language interoperability. This makes it an essential skill for a programmer working with a Microsoft stack.
Enum
An Enum or Enumerated type, is a data type that consists of a set of named values. As most programming languages implement the enum type as one of their primitives it's an important concept for all developers.
Algorithmic thinking
When designing and/or analyzing an algorithm or data structure, it is important to consider the performance and structure of an implementation. Algorithmic thinking is one of the key traits of a good programmer, especially one working on complex or performance-critical code.
Class library
Reusing a properly engineered and thoroughly tested class library is the best way to keep your code concise, performant and reliable.
Package manager
A package manager is a collection of software tools that automates the process of installing, upgrading and removing computer programs and libraries.
CLR
The Common Language Runtime (CLR), the virtual machine component of Microsoft's .NET framework, manages the execution of .NET programs. Knowing how the runtime works is necessary for making a large application fast and stable, avoiding issues like memory leaks and occasional slowdowns.
Refactoring
The process of restructuring existing computer code without changing its external behavior. It is essential for keeping code readable and maintainable.
Random
Random number generators are used to generate random numbers and/or symbols. There are a wide variety of random number generators each with very specific use cases, as such it's important for all developers to know and understand when to use each type.
Test case design
Being able to create a set of test cases that ensure adequate test coverage is a key skill for creating a successful test. It is desirable for the test suite also to be optimal, i.e. to minimize test execution effort and time without affecting the test coverage.
Graphs
Many real-life situations are best modeled by graphs. Therefore, an in-depth knowledge of graph data structures is important for a good programmer.
Extension Methods
Extension methods enable are method of extending existing types without extending the type, recompiling or modifying the original type. They are a useful feature of developers who want to write and maintain clean and concise code.
Dynamic programming
Dynamic programming methods for code optimization can be very useful to a programmer who understands them.
TDD
Test-driven development (TDD) is a software development process that relies on the repetition of a very short development cycle: requirements are turned into very specific test cases, based on which the software is improved only in order to pass the new tests. TDD is an essential skill for modern programmers.
Sorting
Every programmer should be familiar with data-sorting methods, as sorting is very common in data-analysis processes.
Score Distribution
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