PurpleTalk React Js Frontend Developer Interview Questions and Answers

Q1. Solid Principle, Design Patterns,
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Q2. React sharing data btw siblings without any state management.
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Q3. NodeJs is single threaded then why it feels concurrent?
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Q1. Questions related micro services
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Q2. Message queue related questions
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Q3. NodeJs related questions: Event loop
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IN this section ask 60 aptitude qustion based on some computer science subject some qustions are on logic bulidng.

In this round they give one DSA quation which one is solve in only 30 min. According to my the qustion was is easy.

Percentages,Ratio,time,

Arrays,Strings,Hashing,stacks

Aptiude test on their platform

Coding question on array

Q1. Javascript and React native questions
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Q1. What are the design patterns in c#
Ans. 
Design patterns in C# are reusable solutions to common problems in software design.
• Some common design patterns in C# include Singleton, Factory, Observer, and Strategy.

• Singleton pattern ensures a class has only one instance and provides a global point of access to it.

• Factory pattern creates objects without specifying the exact class of object that will be created.

• Observer pattern defines a one-to-many dependency betwee...read more
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It was an aptitude test consisting of 40 questions in 30 minutes.

There were coding questions
1.) Find the sum of 4 largest no in an array.
2.)find area of the largest rectangle in a histogram.
3.)Sudoko challenge