3 Minds Digital UI and UX Designer Intern Interview Questions and Answers

Got an assignment to perform in excel about data analysis for churn prediction. Performed in excel. 70% focus was on skills and 30% on analysis.

Easy leetcode data structure question

Q1. Write working code for calling a rest API, design rate limiter
Ans. 
Code for calling a REST API and designing a rate limiter
• Use a library like requests or axios to make the API call

• Implement a token bucket algorithm for rate limiting

• Set a maximum number of requests per second and queue excess requests

• Consider using a distributed rate limiter for scalability
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Q1. Design Database schema for instagram
Ans. 
Design a database schema for Instagram.
• Create tables for users, posts, comments, likes, and follows.

• Use primary and foreign keys to establish relationships between tables.

• Store user data such as username, email, and password securely.

• Include fields for post content, location, and timestamp.

• Track likes and comments on posts.

• Implement a notification system for follows and likes.

• Consider scalability and performance in the...read more
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HTML, HTML5 ,CSS , Bootstrap, javaScript

First there was aptitude round

The coding question was average level

Q1. Resumes and project related questions were asked
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Q2. Explain you project
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Q3. How to create external tab link
Ans. 
To create an external tab link, use HTML anchor tag with target attribute set to _blank.
• Use <a> tag in HTML with href attribute pointing to the external link

• Set the target attribute of the <a> tag to _blank to open the link in a new tab

• Example: <a href='https://www.example.com' target='_blank'>External Link</a>
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Software testing and coding related questions

Programming test coding

Q1. Myself intro HR subject question with answer
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Q2. Subject related questions
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Q3. What is types software testing
Ans. 
Types of software testing include unit testing, integration testing, system testing, and acceptance testing.
• Unit testing focuses on testing individual components or modules of the software.

• Integration testing involves testing how different modules work together.

• System testing checks the entire system as a whole.

• Acceptance testing ensures that the software meets the requirements of the end users.
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Q4. What is unit testing
Ans. 
Unit testing is a software testing method where individual units or components of a software are tested in isolation.
• Unit testing helps in identifying bugs early in the development process.

• It ensures that each unit of code is working as expected.

• Unit tests are automated and can be run frequently to catch regressions.

• Mocking and stubbing are often used in unit testing to isolate the unit being tested.

• Example: Testing a ...read more
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Q5. What is integration testing
Ans. 
Integration testing is testing the interactions between different components/modules of a software system.
• Tests how well different parts of the system work together

• Ensures that data flows correctly between components

• Identifies any issues with communication or data transfer

• Examples: testing API integrations, testing database connections
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Q6. What is types of software testing
Ans. 
Types of software testing include unit testing, integration testing, system testing, and acceptance testing.
• Unit testing focuses on testing individual components or modules of the software.

• Integration testing involves testing the interactions between different components/modules.

• System testing tests the entire system as a whole.

• Acceptance testing is performed to validate if the software meets the requirements of the st
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Q7.  What is integration testing
Ans. 
Integration testing is testing the interactions between different components or systems to ensure they work together correctly.
• Integration testing verifies that different modules or components of a software work together as expected.

• It focuses on testing the interfaces and interactions between components.

• Examples include testing the integration between a front-end user interface and a back-end database, or between diff
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Q1. Questions on vlook up, h-look up, pivot and if else condition
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Q2. You must know how to use vlook up, h-look up and if-else condition
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Excel file was give, used sumifs, countifs , index match formulas

Q1. What is invoke controller?
Ans. 
Invoke controller is a component in a software application that manages the flow of requests and responses between the user interface and the backend services.
• Manages the communication between user interface and backend services

• Handles the routing of requests to appropriate functions or methods

• Coordinates the flow of data and actions within the application
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Q2. What is facade in laravel?
Ans. 
Facade in Laravel is a design pattern that provides a simple interface to a complex subsystem.
• Facade provides a static interface to classes that are available in the application's service container.

• It is used to simplify the usage of complex classes by providing a simpler interface.

• Facade allows you to access Laravel's features without needing to instantiate objects or use dependency injection.

• Example: The Auth facade ...read more
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Q1. Laravel framework question.
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Q1. Laravel framework question
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