C# Programming Mastery: 300+ Practice Questions and Answers

This course provides you with multiple practice tests featuring a wide array of MCQs and MSQs designed to enhance your C# programming knowledge and better prepare you for technical interviews.

The test series is ideal for both students planning to take an online C# certification test and fresh graduates preparing for C# job assessments.

This series of practical C# tests includes over 300 quality questions covering all levels of C# knowledge (beginner, intermediate, and advanced).

The tests focus on the following C# topics:

Practice test 1:

Basic Syntax

Variables and data types

Operators and expressions

Control flow statements (if, switch, loops)

Basic Object-Oriented Programming

Classes and objects

Inheritance

Encapsulation

Polymorphism

Interfaces

Methods and Properties

Defining and using methods

Method overloading

Properties (getters and setters)

Arrays and Collections

Arrays

Lists

Dictionaries

Other collection types (HashSet, Queue, Stack)

Exception Handling

Try-catch blocks

Creating custom exceptions

Input and Output

Console input/output

File handling (reading from and writing to files)

Practice test 2:

Advanced Object-Oriented Programming

Abstract classes and methods

Sealed classes and methods

Partial classes

Extension methods

Generics

Generic classes and methods

Constraints on generics

Generic collections (List<T>, Dictionary<K,V>)

Delegates and Events

Understanding delegates

Event handling in C#

Lambda expressions

Practice test 3:

LINQ (Language Integrated Query)

LINQ to Objects

LINQ to XML

LINQ to SQL

Asynchronous Programming

Asynchronous methods and the async/await keywords

Task Parallel Library (TPL)

BackgroundWorker

Multithreading

Creating and managing threads

Synchronization and locking

Thread-safe collections

Practice test 4:

Reflection and Attributes

Understanding reflection

Custom attributes

Using reflection to manipulate objects

Dynamic Programming

Using the dynamic keyword

ExpandoObject

Advanced LINQ

Expression trees

Custom LINQ providers

Memory Management and Performance

Garbage collection

IDisposable interface and using statement

Performance profiling

Networking and Communication

Working with sockets

RESTful services with HttpClient

SignalR for real-time communication

Practice test 5:

Security

Encryption and decryption

Secure communication (SSL/TLS)

Authentication and authorization

Design Patterns

Common design patterns (Singleton, Factory, Observer, etc.)

Dependency Injection

Testing

Unit testing with MSTest, NUnit, or xUnit

Mocking frameworks (Moq, NSubstitute)

Test-driven development (TDD)

Application Development Frameworks

Windows Forms and WPF for desktop applications

ASP.NET Core for web applications

Xamarin or MAUI for mobile applications

Practice test 6:

Integration with Other Technologies

Interoperability with unmanaged code (P/Invoke)

Working with COM components

Compiler Features and Tools

Roslyn compiler

Code analysis and refactoring tools

Deployment and Maintenance

Application deployment strategies

Continuous Integration/Continuous Deployment (CI/CD)

Each test consists of 50 questions

You have 60 min for each test

No negative marking

Min. percentage to pass is 50