IT1808 .NET Framework C# Introduction Quiz

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Questions and Answers

Which feature of C# allows you to develop both console applications and web applications?

Garbage collection (correct)

Component Object Model (COM)

Polymorphism

Inheritance

Who headed the development of C# at Microsoft in the late 1990s?

Bill Gates

Anders Hejlsberg (correct)

Steve Jobs

Satya Nadella

What is automatically initialized to zeros in C#?

Primitive data types (correct)

Object instances

Classes

Reference types

Which aspect of.NET Framework provides an environment to build and deploy different types of applications easily?

Software development framework Signup and view all the answers

What do lambda expressions facilitate in C# programming?

LINQ queries Signup and view all the answers

Which feature of C# expands the scope, power, and range of the language?

Generics Signup and view all the answers

What is the role of the Common Language Runtime (CLR) in the .NET framework?

Converts source code into Microsoft Intermediate Language (MSIL) Signup and view all the answers

Which component of the .NET framework enables debugging and exception handling?

Common Language Runtime (CLR) Signup and view all the answers

In the .NET framework, what is the purpose of Microsoft Intermediate Language (MSIL)?

Portable assembly code for the framework Signup and view all the answers

What is the role of Just-In-Time (JIT) compiler in the .NET framework?

Compiles MSIL code into native code before execution Signup and view all the answers

Which component in the .NET framework contains classes and interfaces used for building applications?

.NET Base Class Library Signup and view all the answers

What role does ADO.NET play in the .NET framework?

Provides access to relational databases and data sources like SQL Server and XML Signup and view all the answers

What information does the Manifest store for each assembly?

Identification information and list of other assemblies Signup and view all the answers

How is the version number of an assembly represented?

As a set of four decimal pieces: Major.Minor.Build.Revision Signup and view all the answers

What is the key difference between deploying a private and a shared assembly?

Multiple applications can use a shared assembly, but only a single application can use a private assembly. Signup and view all the answers

Why is it necessary to register a shared assembly in GAC?

To make it accessible to all applications on the computer Signup and view all the answers

In what scenario is creating a strong name required for an assembly?

For a shared assembly with multiple versions that are not backward compatible Signup and view all the answers

Under what condition does an application stop working when using a private assembly?

When the private assembly has multiple versions that are not backward compatible Signup and view all the answers

Which part of a C# program is responsible for reading user input as a string?

Main method Signup and view all the answers

What does the using keyword in C# allow you to do?

Access classes from a namespace Signup and view all the answers

In a C# program, what is the purpose of the 'Console.ReadKey()' statement?

Wait for a key press before exiting the program Signup and view all the answers

What does the namespace declaration do in a C# program?

Organize classes into a project Signup and view all the answers

Which part of a C# program typically contains the program logic and statements?

Main method Signup and view all the answers

What is the purpose of the 'Convert.ToInt32()' method in C#?

Converts a string to an integer Signup and view all the answers

What is the purpose of comments in a C# program?

To add notes for programmers and aid in program readability Signup and view all the answers

Where should the Main method be defined in a C# application?

As a static method in a class Signup and view all the answers

What happens if statements or expressions in C# are not terminated correctly?

The program will not compile Signup and view all the answers

Which part of a C# program is considered as the starting point of execution?

The Main method Signup and view all the answers

How should a C# file be saved to match its class name?

.cs extension Signup and view all the answers

What type of argument does the Main method typically take in a C# application?

String array Signup and view all the answers

Study Notes

C# Features and Development

C# supports development of both console and web applications through its versatile framework.
Anders Hejlsberg led the development of C# at Microsoft in the late 1990s.
Variables in C# are automatically initialized to zero when declared.

.NET Framework Components

The .NET Framework offers an environment that simplifies the building and deploying of various applications.
Lambda expressions enhance programming in C# by allowing concise inline function definitions.
C#'s advanced features increase the language's scope, power, and usability.

Common Language Runtime (CLR)

The CLR is crucial in the .NET framework, providing services such as memory management, security, and exception handling.
The .NET framework's debugging and exception handling is facilitated by components integrated within its architecture.
Microsoft Intermediate Language (MSIL) serves as the low-level language to which C# code is compiled before execution.

Just-In-Time (JIT) Compiler

The JIT compiler in the .NET framework translates MSIL into native machine code at runtime, optimizing performance.

Application Development Components

The .NET framework contains extensive classes and interfaces essential for application development.
ADO.NET handles data access in the .NET framework, allowing developers to interact with databases efficiently.

Assembly Information

Each assembly's Manifest stores metadata, such as versioning and dependencies.
Assembly version numbers are represented in a four-part format: Major, Minor, Build, and Revision.
The distinction between private and shared assemblies lies in their accessibility and deployment; private assemblies are unique to an application while shared assemblies can be used by multiple applications.

Global Assembly Cache (GAC)

Registering a shared assembly in the GAC is necessary to prevent version conflicts among applications using that assembly.

Strong Names and Assembly Behavior

Strong names are required for an assembly to ensure uniqueness and version control in the GAC.
An application using a private assembly will cease to function if that assembly is moved or deleted.

Input and Output in C#

The 'Console.ReadLine()' method in C# is responsible for capturing user input as a string.
The 'using' keyword simplifies namespaces management and resource management by ensuring proper disposal of objects.
The statement 'Console.ReadKey()' is used to pause program execution until a key is pressed, typically for output observation.

Program Structure in C#

The namespace declaration organizes code and avoids naming conflicts within a C# program.
Program logic and statements are typically found in the Main method, which must be defined within a class.
The 'Convert.ToInt32()' method converts various data types to an integer, commonly used for user input validation.

Code Management in C#

Comments in a C# program are used for documentation and clarification, aiding both the creator and future developers.
The Main method should be the entry point of execution and is usually defined in the program's main class.
Errors occur if statements or expressions are not correctly terminated with a semicolon, leading to compile-time errors.

File and Argument Management

A C# file should match its class name for consistency, adhering to naming conventions.
The Main method often takes a string array as an argument, allowing command-line input when the application runs.

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Description

Test your knowledge on the introduction to C# programming language, including features like data encapsulation, inheritance, polymorphism, and method overriding. Explore how C# allows building web, windows, mobile, and cloud-based applications.