INNOVA AM TECH UI Developer Interview Questions and Answers

Q1. What is difference between HTML and HTML5
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Q1. Basics about angular
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Q2. Javascript concepts
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1. noramal php question

Php function basic codeing

Q1. What are hooks how to use them list them
Ans. 
Hooks are a feature in React that allow you to use state and other React features in functional components.
• Hooks are functions that let you use state and other React features in functional components.

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

• useState hook is used to add state to functional components.

• useEffect hook is used to perform side effects in functional components.

• useContext hook i...read more
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Q2. What are the lifecycle methods
Ans. 
Lifecycle methods are methods that are called automatically at specific points in a component's lifecycle.
• componentDidMount() - called after the component is rendered for the first time

• componentDidUpdate() - called after the component's updates are applied

• componentWillUnmount() - called before the component is removed from the DOM
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Q3. Create a react project and fetch data from api and display it
Ans. 
Create a React project to fetch and display data from an API
• Set up a new React project using create-react-app

• Use the fetch API or axios to make a request to the desired API

• Store the fetched data in state using useState hook

• Render the data on the UI using JSX
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Q1. Questions about And and Or operators in php.
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Q2. Tell the output of PHP program in which And and Or is used
Ans. 
The output of a PHP program using And and Or depends on the logic used in the program.
• And (&&) returns true if both conditions are true

• Or (||) returns true if at least one condition is true

• The output will depend on the logic used in the program
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Q3. Questions on MySql Aggregate functions
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Q4. Write MySql query for getting employee with 3rd maximum salary
Ans. 
The query to get the employee with the 3rd maximum salary in MySQL.
• Use the ORDER BY clause to sort the salaries in descending order.

• Use the LIMIT clause to retrieve the third row.

• Use a subquery to select the third maximum salary.
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Q1. Waste questions
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Q2. Not worth of going for an interview
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Q1. Mvvm, oops, broadcast receiver, activity life cycle, aidl
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Q1. Project experience,
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Q1. Discussion of salary
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