Common Terminologies in Python
IDLE (Integrated Development and Learning Environment) - An environment that allows you to easily write Python code. IDLE can be used to execute single statements and create, modify, and execute Python scripts.

Python Shell - An interactive environment that allows you to type in Python code and execute it immediately.

System Python - The version of Python that comes with your operating system.

Prompt - Usually represented by the symbol ">>>" and it simply means that Python is waiting for you to give it some instructions.

REPL (Read-Evaluate-Print-Loop) - Refers to the sequence of events in your interactive window in the form of a loop (Python reads the code inputted, evaluates the code, prints the output, and then loops back).

Argument - A value that is passed to a function when called. For example, in print("Hello World"), "Hello World" is the argument that is being passed.

Function - A piece of code that takes some input (arguments), processes that input, and produces an output called a return value. For example, in print("Hello World"), print is the function.

Return Value - The value that a function returns to the calling script or function when it completes its task (in other words, output). For example:

python:

>>> print("Hello World")
Hello World

Where "Hello World" is the return value. A return value can be any of these variable types: handle, integer, object, or string.

Script - A file where you store your Python code in a text file and execute all of the code with a single command.

Script Files - A file containing a group of Python scripts.

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interview questions for an ASP.NET C# developer
1-What is ASP.NET? Answer: ASP.NET is an open-source, server-side web application framework designed for web development to produce dynamic web pages. It was developed by Microsoft to allow programmers to build dynamic web sites, applications, and services.

2-Explain the page life cycle of an ASP.NET web page. Answer: The page life cycle includes stages such as:
Page Request
Start
Initialization
Load
PostBack Event Handling
Rendering
Unload

3-What is the difference between Response.Redirect and Server.Transfer? Answer:
Response.Redirect performs a new request from the client, causing an additional round trip to the server.
Server.Transfer transfers the request directly to another page on the server without making a round trip back to the client.

4-What are the different session state modes in ASP.NET? Answer:
InProc: Session state is stored in the memory of the Web server.
StateServer: Session state is serialized and stored in a separate process called the ASP.NET state service.
SQLServer: Session state is serialized and stored in a SQL Server database.
Custom: Session state is stored using a custom provider.
Off: Session state is disabled.

5-What is the Global.asax file used for? Answer: The Global.asax file, also known as the ASP.NET application file, is used to handle higher-level application events like Application_Start, Application_End, Session_Start, Session_End, etc.

6-What are HTTP handlers in ASP.NET? Answer: HTTP handlers are the endpoints that process individual HTTP requests. They implement the IHttpHandler interface. Example:
Csharp code:
public class MyHandler : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.Write("Hello, World!");
}

public bool IsReusable => false;
}

7-Explain the concept of MVC in ASP.NET. Answer: MVC stands for Model-View-Controller:
Model: Represents the application's data and business logic.
View: Represents the user interface.
Controller: Handles user input and interaction, works with the model, and renders the appropriate view.

8-What are Web API and how is it different from WCF? Answer: ASP.NET Web API is a framework for building HTTP services that can be accessed from any client including browsers and mobile devices. Unlike WCF, which can be configured to work with different protocols like TCP, HTTP, etc., Web API is primarily built for RESTful services using HTTP.

9-What is LINQ and how is it used in C#? Answer: LINQ (Language Integrated Query) is a set of methods and syntax in C# that allows querying of collections in a more readable and concise way. Example:
Csharp code
int[] numbers = { 1, 2, 3, 4, 5 };
var evenNumbers = from num in numbers
where num % 2 == 0
select num;

10.What is Entity Framework in ASP.NET? Answer: Entity Framework (EF) is an open-source ORM framework for ADO.NET, which allows developers to work with relational data using domain-specific objects. It eliminates the need for most of the data-access code that developers usually need to write. Example:
csharp code
using (var context = new MyDbContext())
{
var students = context.Students.ToList();
}
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🚀 Use .NET Libraries! 🚀

Here are some popular libraries you may consider using:

1-ORM 🗃

EF Core
Dapper ORM
NHibernate

2-API 🌐

SignalR
FluentValidation
FastEndpoints
Ocelot

3-Testing 🧪
Testcontainers
FluentAssertions
Moq
Bogus

4-Logging 📜
Serilog
NLog
Sentry

5-Dependency Injection (DI) 🧩
Autofac
Scrutor
Ninject

6-Background Processing 🔄
Hangfire
Quartz .NET

7-HTTP 📡
Polly
RestSharp
Refit

8-Office 🏢
ClosedXML
EPPlus
Excel-DNA

9-Auth 🔐
IdentityServer
openiddict
Keycloak

10-Queue 📬
RabbitMQ
MassTransit
NServiceBus

Being a .NET developer is hard. 💪 You need to know 1,000 topics!

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From Beginner to Pro: Develop a C# Desktop App restaurant management system in c# + SQL Database | Step-by-Step Tutorial | source code

🚀 Dive into the world of C# programming with this comprehensive tutorial! In this video, we'll guide you through building a fully functional Desktop Application using C# and integrating it with an SQL Server Database. From setting up your development environment to writing the code and deploying the application, you'll learn everything you need to know to create your own powerful software. Source code included! 💻🔧
#csharp #DesktopApp #SQLServer #Database #ProgrammingTutorial #LearnToCode #SoftwareDevelopment #SourceCode
https://youtu.be/0oYhUHkmZeo

From Beginner to Pro: Develop a C# Desktop App restaurant management system in c# + SQL Database | Step-by-Step Tutorial | source code

🚀 Dive into the world of C# programming with this comprehensive tutorial! In this video, we'll guide you through building a fully functional Desktop Application using C# and integrating it with an SQL Server Database. From setting up your development environment to writing the code and deploying the application, you'll learn everything you need to know to create your own powerful software. Source code included! 💻🔧
#csharp #DesktopApp #SQLServer #Database #ProgrammingTutorial #LearnToCode #SoftwareDevelopment #SourceCode
https://youtu.be/0oYhUHkmZeo

Hi everyone, announcement: 📢

Google is hiring for summer interns

Apply asap if eligible - https://www.google.com/about/careers/applications/jobs/results/83484176157680326-software-engineering-intern-summer-2025

C#. NET Setup File Creation: Packaging Windows Forms Applications 🎥 Deploying C# Windows Forms Apps: Creating Setup Files in Visual Studio 💻📦
https://youtu.be/i73bCGbHuiM

In this video, you'll learn how to create a setup file for your C#.NET Windows Forms applications. We'll guide you step-by-step through the process of packaging your app using Visual Studio, making it easy to deploy on any Windows machine. Whether you're a beginner or an experienced developer, this tutorial will help you efficiently distribute your applications. 🚀📦💻

Hashtags:
#CSharp #NET #SetupFile #WindowsForms #VisualStudio #AppDeployment #CodingTutorial #Programming #SoftwareDevelopment #LearnToCode 🚀💻🔧👇📥

🚀 New Video Alert! 🚀

Check out our latest tutorial on C#.NET Setup File Creation: Packaging Windows Forms Applications 🎥. In this video, you'll learn how to create a setup file for your C#.NET Windows Forms applications. We'll guide you step-by-step through the process of packaging your app using Visual Studio, making it easy to deploy on any Windows machine.

Whether you're a beginner or an experienced developer, this tutorial will help you efficiently distribute your applications. 💻📦

👉 Watch now: C#.NET Setup File Creation: Packaging Windows Forms Applications
https://youtu.be/i73bCGbHuiM

Don't forget to like, comment, and subscribe for more tutorials! 🔔

Hashtags:
#CSharp #NET #SetupFile #WindowsForms #VisualStudio #AppDeployment #CodingTutorial #Programming #SoftwareDevelopment #LearnToCode 🚀💻🔧👇📥

Happy coding! 😊💻✨

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https://youtu.be/n_b-sgpvfFo

Database keys :

Database keys are essential for organizing and managing data effectively. In this post, we'll explore ten key concepts that every IT professional should know.

1. 🗝 𝗣𝗿𝗶𝗺𝗮𝗿𝘆 𝗞𝗲𝘆
- A unique identifier for each record in a table.
- Cannot be null.
- Ensures that each row is unique.

2. 🌉 𝗙𝗼𝗿𝗲𝗶𝗴𝗻 𝗞𝗲𝘆
- A field in one table that refers to the Primary Key of another table.
- Establishes relationships between tables.

3. 🧩 𝗖𝗼𝗺𝗽𝗼𝘀𝗶𝘁𝗲 𝗞𝗲𝘆
- A combination of two or more columns that uniquely identifies each record.
- Useful when a single column can't uniquely identify a record.

4. 💪 𝗦𝘂𝗽𝗲𝗿 𝗞𝗲𝘆
- One or more columns that can uniquely identify a record.
- A Primary Key is a type of Super Key.

5. 🏅 𝗖𝗮𝗻𝗱𝗶𝗱𝗮𝘁𝗲 𝗞𝗲𝘆
- A column or set of columns that could be the Primary Key.
- Must be unique.

6. 🔍 𝗨𝗻𝗶𝗾𝘂𝗲 𝗞𝗲𝘆
- Ensures uniqueness for a column or column combination.
- Similar to Primary Key but allows one null value.

7. 🛤 𝗔𝗹𝘁𝗲𝗿𝗻𝗮𝘁𝗲 𝗞𝗲𝘆
- A Candidate Key that isn't the Primary Key.
- Another option for a unique identifier.

8. 🍃 𝗡𝗮𝘁𝘂𝗿𝗮𝗹 𝗞𝗲𝘆
- A key that's a natural part of the data, like an email address.

9. 🎭 𝗦𝘂𝗿𝗿𝗼𝗴𝗮𝘁𝗲 𝗞𝗲𝘆
- An artificial key created when no natural unique identifier exists.

10. 🔑 𝗦𝗲𝗰𝗼𝗻𝗱𝗮𝗿𝘆 𝗞𝗲𝘆
- Used for data retrieval, not identification.
- Helps create non-clustered indexes.

DSA Notes
https://www.instagram.com/reel/C5yS_fNy82l/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==

🚀📚 DSA Cheat Sheet Alert! 📚🚀

Hey everyone! I've put together an amazing Data Structure and Algorithms (DSA) Cheat Sheet just for you! Whether you're prepping for exams, coding interviews, or simply brushing up on your skills, this cheat sheet has got you covered! 📝💡

What's inside?

Key concepts & definitions
Quick reference guides
Time complexities
Visual aids & examples
Perfect for students, developers, and anyone passionate about coding! 💻✨

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