Senwell Solutions Interview Questions, Process, and Tips

Q1. What is async and await?
Ans. 
Async and await are keywords in C# used for asynchronous programming to improve performance and responsiveness.
• Async is used to define a method as asynchronous, allowing it to run concurrently with other code.

• Await is used to pause the execution of an async method until a task is complete, without blocking the thread.

• Async and await are commonly used in tasks like network requests, file I/O, and database operations.

• Exa...read more
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Q2. What is transit?
Ans. 
Transit refers to the act of moving goods or people from one place to another, typically using public transportation systems.
• Transit can include various modes of transportation such as buses, trains, subways, and ferries.

• Transit systems are designed to efficiently transport large numbers of people within urban areas.

• Examples of transit systems include the New York City Subway, London Underground, and Tokyo Metro.
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Q3. What is middleware
Ans. 
Middleware is software that acts as a bridge between different applications or systems, allowing them to communicate and share data.
• Middleware helps in integrating different software components and systems together.

• It provides a layer of abstraction for communication between applications.

• Examples of middleware include message brokers like RabbitMQ, web servers like Apache Tomcat, and API gateways like Kong.
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Q4. What is stored procedure?
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Stored procedure is a precompiled collection of SQL statements that can be executed by calling the procedure name.
• Stored procedures help improve performance by reducing network traffic and improving security.

• They can be used to encapsulate business logic and promote code reusability.

• Stored procedures can accept input parameters and return output parameters or result sets.

• Examples: sp_GetEmployeeDetails, sp_InsertOrder
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Q5. What is MVC Life Cycle?
Ans. 
MVC Life Cycle refers to the sequence of events that occur during the processing of an HTTP request in an MVC application.
• 1. Routing: Determines which controller and action method to call based on the URL.

• 2. Controller Initialization: Creates an instance of the controller and calls the action method.

• 3. Action Execution: Executes the logic defined in the action method.

• 4. Result Execution: Renders the view and returns th...read more
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Q1. Previous Experience
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Q2. React js Hooks,Custom Hooks Make program for show counter
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Q3. JavaScript Array Questions short array without using in-built method
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Prepare react optimization techniques and error boundary, promises

Assignment On CRUD Operations

Q1. Introduction and skills
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Q2. Family Background
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Q1. First question is What is React?
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Q2. What is JSX and Babel?
Ans. 
JSX is a syntax extension for JavaScript that allows writing HTML-like code within JavaScript. Babel is a tool used to transpile JSX code into plain JavaScript.
• JSX stands for JavaScript XML and is used to write HTML-like code in React components

• Babel is a JavaScript compiler that converts JSX code into plain JavaScript for browser compatibility

• JSX allows developers to write UI components in a more declarative and reada...read more
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Q3. What are different hooks?
Ans. 
Hooks are functions that let you use state and other React features without writing a class.
• Hooks are introduced in React 16.8.

• They allow you to use state and other React features in functional components.

• Some commonly used hooks are useState, useEffect, useContext, and useReducer.

• Hooks help in reusing logic across components and making code more readable.

• Example: useState hook is used to add state to functional compon
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Q4. What is useState and Why we use it?
Ans. 
useState is a hook in React that allows functional components to have state.
• useState is used to add state to functional components in React.

• It returns an array with two elements - the current state value and a function to update that value.

• Example: const [count, setCount] = useState(0);
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Q5. Real DOM and Virtual Dom?
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Three questions on basic coding .

Basic React assignment increase the counter on button click

Q1. What is jsx ?
Ans. 
JSX is a syntax extension for JavaScript that allows writing HTML-like code in React applications.
• JSX stands for JavaScript XML

• It allows developers to write HTML-like code directly in their JavaScript files

• JSX gets transpiled into regular JavaScript by tools like Babel before being rendered by the browser
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Q2. Create Counter function.
Ans. 
Create a simple counter function in Reactjs.
• Create a state variable to store the count value.

• Use setState to update the count value.

• Render the count value in the component.
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