Prime Focus Technologies Java Developer Interview Questions and Answers

Interview for backend developer with experience in django

Q1. Writing ORM queries in django
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Q2. Database design with foregin and many to many fields
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Q3. Explain django's request response flow
Ans. 
Django's request response flow involves the request being handled by URL dispatcher, views, middleware, and templates before generating a response.
• Request is received by URL dispatcher which maps the URL to a view function

• View function processes the request, interacts with models if needed, and returns a response

• Middleware can intercept the request and response for additional processing

• Templates are used to generate HT
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Online coding 5 question easy to hard time given is 2hrs

2 Questions - 1 graph and one basic

Q1. 2 basic coding questions and questions on OS and DBMS
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Q1. What is the use of ref?
Ans. 
The 'ref' keyword in C# is used to pass arguments by reference instead of by value.
• Allows a method to modify the value of the argument passed to it

• Useful when you want to update the original value of a variable inside a method

• Can be used with value types and reference types

• Example: void UpdateValue(ref int num) { num = 10; }

• Example: int value = 5; UpdateValue(ref value); // value will be 10 after the method call
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Q2. What are React Hooks
Ans. 
React Hooks are functions that let you use state and other React features without writing a class.
• React Hooks were introduced in React 16.8.

• They allow you to use state and other React features in functional components.

• Some commonly used React Hooks are useState, useEffect, useContext, etc.

• Hooks are more lightweight and easier to understand compared to class components.
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Create an API using Notepad to check if a string is a palindrome or not.

Q1. Solid principal
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Q1. Questions on OOPS, Core Concepts of C#, SQL
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Q1. Questions on System Design and tricky questions on OOPS
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Q1. Previous organization work culture and expectations
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Q1. Questions related to OOP's , SQL, .Net core.
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