BT Group Software Developer Interview Questions and Answers

Q1. Oops concept related work
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Q2. Technology used in prj
Ans. 
Various technologies used in the project include Java, Spring Boot, Angular, MySQL, and Docker.
• Java

• Spring Boot

• Angular

• MySQL

• Docker
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Q1. Tell me about yourself
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I am a passionate software developer with experience in Java, Python, and web development.
• Experienced in Java, Python, and web development technologies

• Strong problem-solving skills

• Team player with excellent communication skills
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Q2. What was malloc
Ans. 
malloc is a function in C programming used to dynamically allocate memory during runtime.
• malloc stands for 'memory allocation'.

• It is used to allocate a specific amount of memory during program execution.

• The allocated memory is not automatically initialized and must be explicitly freed using the free() function to avoid memory leaks.
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Q1. What is decorator in python
Ans. 
Decorator in Python is a design pattern that allows adding new functionality to an existing object without modifying its structure.
• Decorators are functions that take another function as an argument and extend its behavior without explicitly modifying it.

• They are commonly used to add logging, timing, caching, or authentication to functions.

• Syntax for using decorators in Python involves using the @ symbol followed by the...read more
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Q2. What is yeild in python
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yield is a keyword in Python used in generator functions to return a value without terminating the function
• yield is used in generator functions to produce a series of values over time

• When a generator function is called, it returns an iterator object but does not start execution immediately

• Each time the yield statement is reached, the function's state is saved, and the value is returned to the caller

• Execution of the fun...read more
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30 min 30 ques and gaming ques

Q1. What is ML and AI in your project?
Ans. 
ML and AI are used in our project to analyze user behavior and provide personalized recommendations.
• ML algorithms are used to analyze user data and predict user preferences.

• AI is used to provide personalized recommendations based on the analysis of user behavior.

• Examples include recommendation systems for e-commerce websites and personalized content suggestions on streaming platforms.
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Q2. What is lagging concept and more?
Ans. 
Lagging concept refers to a concept or idea that is behind or not up to date compared to current standards or practices.
• Refers to outdated technology or methods in software development

• Can lead to inefficiencies, bugs, or security vulnerabilities

• Examples include using deprecated libraries or not following best practices for coding
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DSA and array with graph skills 2:00 hours , leetcode

Q1. Tell me about yourself
Ans. 
I am a passionate software developer with experience in building web applications using various technologies.
• Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular

• Proficient in backend development with Node.js and databases like MongoDB and MySQL

• Familiar with version control systems like Git and deployment tools like Heroku

• Strong problem-solving skills and ability
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Q2. Why we should considered
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1st round was Hirevue video assessment which had 5 questions .
1st - Tell us about yourself
2nd and 3rd were coding questions
4th was related to the 3rd coding question about its logic and alternate logic
5th was basically how are you fit for the role

Q1. This was a technical interview First I was asked to write a code for dupl8cate elements in an array. Then he asked me about concepts of OOPS , DBMS, and DSA
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Q2. About Constructors
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Q3. Java interface and inheritance
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Q4. HashMaps , Foriegn keys , OLTP , OLAP
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