BYJU'S Associate Designer Interview Questions and Answers

Round duration - 120 minutes
Round difficulty - Easy

It was a mix of mathematical aptitude, logical ability, and puzzles along with 2 programming questions of easy and medium level. Time was enough and no sectional time was present. 1-2 MCQs on SQL were also present.

This round was immediately followed by an SHL aptitude test which was basically a quick limited time check of your verbal ability and math because many questions were to be done in 1 hour.

Q1. 
Boolean Matrix Transformation Challenge
Given a 2-dimensional boolean matrix mat of size N x M, your task is to modify the matrix such that if any element is 1, set its entire row and column to 1. Specifi...read more
Ans. 
Modify a boolean matrix such that if any element is 1, set its entire row and column to 1.
• Iterate through the matrix and mark rows and columns to be modified

• Use additional arrays to keep track of rows and columns to be modified

• Update the matrix in-place based on the marked rows and columns
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Round duration - 60 minutes
Round difficulty - Easy

It was an online video interview round on HackerEarth with simultaneous code option. It was mostly justifying your resume in the first 15 minutes. After that OOPS was majorly asked. Basics of programming including questions on STL were asked. A class which required inheritance was asked by the interviewer to write. I was helped by the interviewer if i got stuck somewhere, Some questions on implementation of hashmaps and priority queues were also asked. A puzzle was asked which luckily struct to me at that moment.

Q1. Polyfills and Logical
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Q2. List in react and the input box
Ans. 
Answer on how to list in react and the input box
• Use the map function to create a list in React

• Use the state to store the input value

• Use onChange event to update the state when the input value changes

• Use onSubmit event to handle the form submission
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Q1. Dependency Injection
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Q2. Life Cycle Hooks in Angular
Ans. 
Life Cycle Hooks are functions that Angular calls at specific points in the life of a component.
• There are eight different life cycle hooks in Angular.

• They are: ngOnChanges, ngOnInit, ngDoCheck, ngAfterContentInit, ngAfterContentChecked, ngAfterViewInit, ngAfterViewChecked, ngOnDestroy.

• These hooks allow developers to perform specific actions at different stages of a component's life cycle.

• For example, ngOnInit is called...read more
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Q1. Abt the .net core
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Q2. C-sharp in deep
Ans. 
C# is a powerful programming language developed by Microsoft for building applications on the .NET framework.
• C# is an object-oriented language with features like classes, inheritance, and polymorphism.

• It is widely used for developing Windows applications, web applications, and games.

• C# supports asynchronous programming with the async and await keywords.

• LINQ (Language Integrated Query) is a powerful feature in C# for qu...read more
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Q3. Oops concepts in deep
Ans. 
Oops concepts refer to Object-Oriented Programming principles like Inheritance, Polymorphism, Encapsulation, and Abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Abstraction: Hiding the complex implementation detail...read more
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Q1. About your experience and work experience
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Q1. What is angular pipes
Ans. 
Angular pipes are used in Angular applications to transform data before displaying it in the view.
• Angular pipes are used to format data in the template.

• They can be used to transform data such as currency, dates, and text.

• Pipes can be chained together for more complex transformations.

• Custom pipes can also be created for specific formatting needs.
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Q2. What is routing
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Q1. What is auth gurd
Ans. 
Auth guard is a feature in software development that restricts access to certain resources based on user authentication.
• Auth guard is commonly used in web applications to control access to certain pages or features.

• It checks if a user is authenticated before allowing them to access a specific resource.

• Examples include restricting access to admin pages or requiring login to view certain content.
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Q2. What is interceptor
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