Protonshub Technologies Interview Questions and Answers

3 coding questions-including string,array and gaming question whereas 2 questions are medium level and single is hard

Q1. Difference between stored procedure and function. What are limitations of struct over class Coding question related to inheritance
Ans. 
Stored procedures are precompiled SQL queries stored in the database, while functions are reusable code blocks that return a value.
• Stored procedures are used for performing specific tasks in the database, while functions are used to return a single value.

• Stored procedures can contain multiple SQL statements, while functions contain a single SQL statement.

• Stored procedures can have input and output parameters, while fun...read more
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Q2. Inheritance based coding
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Q3. Limitation of struct over class
Ans. 
Structs are limited in terms of inheritance, access control, and polymorphism compared to classes.
• Structs do not support inheritance, while classes do.

• Structs have limited access control (public by default), while classes can have private, protected, and public members.

• Structs do not support polymorphism, while classes can have virtual functions for runtime polymorphism.
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Q4. Provided one question of substring how can you solve it , complexity? Can we decrease complexity,is their otherway to solve?
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Q1. What is settimeout
Ans. 
setTimeout is a function in JavaScript that executes a specified function or code snippet after a specified delay.
• setTimeout is used to delay the execution of a function or code snippet.

• It takes two parameters: a function to be executed and a delay time in milliseconds.

• Example: setTimeout(() => { console.log('Delayed message') }, 2000) will log 'Delayed message' after 2 seconds.
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Q2. What is interval
Ans. 
Interval is a time period between two specified points.
• Interval is a duration of time between two specific points.

• It can be used in programming to execute a function at regular intervals.

• For example, setInterval() function in JavaScript is used to repeatedly execute a function at specified intervals.
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Q3. What is redux management
Ans. 
Redux management is a state management tool for JavaScript apps, allowing for centralized state management and predictable state changes.
• Centralized state management for React applications

• Stores the entire state of the application in a single immutable object

• State changes are made through actions and reducers

• Helps in managing complex state logic and data flow in large applications
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Q4. What is context api
Ans. 
Context API is a feature in React that allows sharing data between components without having to pass props through every level of the component tree.
• Context API provides a way to pass data through the component tree without having to pass props down manually at every level.

• It is useful for sharing global data such as themes, user authentication, or language preferences.

• Context API consists of three main parts: Provider...read more
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Q5. Tell me about yourself
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