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10+ Wipro Web Developer Interview Questions and Answers
Q1. What is your experience with database management systems?
I have extensive experience with database management systems.
Proficient in SQL and NoSQL databases
Designed and implemented database schemas
Optimized database performance through indexing and query optimization
Experience with MySQL, MongoDB, and PostgreSQL
Familiarity with data warehousing and ETL processes
Q2. What steps do you take to ensure accurate estimates for a project?
To ensure accurate estimates for a project, I follow these steps:
Gather all project requirements and specifications
Break down the project into smaller tasks
Estimate the time required for each task
Consider any potential roadblocks or delays
Factor in any additional time for testing and revisions
Review and adjust estimates as needed throughout the project
Q3. Which programming languages do you use regularly in your work?
I use a variety of programming languages depending on the project requirements.
I am proficient in JavaScript and use it for front-end development.
For back-end development, I use languages like PHP, Python, and Ruby.
I also have experience with SQL for database management.
I am constantly learning new languages and technologies to stay up-to-date with industry trends.
Q4. tell me about event loop in javascript and asynchronous programming?
Event loop in JS manages the execution of code and handles asynchronous tasks.
JS is single-threaded, so event loop helps manage tasks without blocking the main thread.
Asynchronous programming allows non-blocking execution of code.
Callbacks, Promises, and Async/Await are common ways to handle asynchronous tasks.
Example: setTimeout() function uses event loop to execute code after a specified delay.
Q5. Question :- 1) what is use of php?
PHP is a server-side scripting language used for web development.
PHP is used to create dynamic web pages and web applications.
It can interact with databases, handle forms, and manage sessions.
PHP can be embedded into HTML code.
Popular websites like Facebook, Wikipedia, and WordPress use PHP.
Q6. What is a superclass?
A superclass is a class from which other classes inherit properties and methods.
Superclass is also known as a parent class.
Subclasses inherit attributes and behaviors from the superclass.
Superclass promotes code reusability and helps in organizing code.
Q7. What is the php and simple program
PHP is a server-side scripting language used for web development. A simple program in PHP is a basic script that performs a specific task.
PHP is widely used for creating dynamic web pages and applications.
A simple PHP program can be used to display the current date and time on a webpage.
PHP programs are written within tags and can be embedded within HTML code.
PHP supports various data types, control structures, and functions for performing different operations.
PHP programs c...read more
Q8. What is an object?
An object is a data structure that contains properties and methods.
Objects are instances of classes in object-oriented programming.
Properties are key-value pairs that define the characteristics of the object.
Methods are functions that can be called on the object to perform actions.
Example: An object representing a car could have properties like 'color' and 'model' and methods like 'start' and 'stop'.
Q9. What is a class?
A class is a blueprint for creating objects in object-oriented programming.
Classes define the properties and behaviors of objects.
Objects are instances of classes.
Classes can inherit properties and behaviors from other classes.
Example: class Car { // properties and methods }
Q10. Define a constructor?
A constructor is a special method used to initialize objects in a class.
Constructors have the same name as the class they belong to
They are called automatically when an object is created
They can initialize object properties and perform other setup tasks
Q11. What is Css and style
CSS is a styling language used to describe the look and formatting of a document written in HTML.
CSS stands for Cascading Style Sheets.
It is used to control the layout and appearance of web pages.
CSS separates the content of a webpage from its presentation.
It allows developers to apply styles to HTML elements, such as changing colors, fonts, sizes, and positioning.
CSS can be written inline, embedded within HTML, or in an external file.
Selectors are used to target specific ele...read more
Q12. What is html and tag
HTML is a markup language used to create web pages. Tags are elements used to define the structure and content of the page.
HTML stands for HyperText Markup Language
Tags are enclosed in angle brackets (<>) and come in pairs - opening tag and closing tag
Tags can have attributes that provide additional information about the element
Example: <h1>This is a heading</h1>
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