BNP Paribas Software Developer Interview Questions and Answers

Q1. Functional interface
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Q2. Find if array of numbers, which are prime, using streams
Ans. 
Use streams to find prime numbers in an array
• Use Java streams to filter out non-prime numbers from the array

• Check if a number is prime by dividing it by all numbers less than its square root

• Create a method to check if a number is prime
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DP graphs strings it was good

Q1. Reverse a linkded list
Ans. 
Reverse a linked list by changing the direction of pointers
• Start with three pointers: current, previous, and next

• Iterate through the list, updating pointers to reverse the direction

• Return the new head of the reversed list
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Q2. Print fibonacci series
Ans. 
The Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
• Start with two variables initialized to 0 and 1

• Loop through desired number of iterations, adding the previous two numbers to get the next number

• Print or store each number in the series
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Q1. SOLID Principle
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Q2. Throw vs throw ex
Ans. 
throw vs throw ex is used in exception handling in C#
• throw is used to rethrow the current exception without losing the original stack trace

• throw ex is used to throw a new exception while preserving the original exception information

• It is recommended to use throw without specifying ex to avoid losing important exception details
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Q1. Why do you want to switch
Ans. 
I want to switch to explore new technologies and challenges in a different industry.
• Interested in learning new skills and technologies

• Seeking new challenges and opportunities for growth

• Want to explore different industry perspectives
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Q2. Salry expectations
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Q1. Question on oop concepts
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Q2. Coding questions
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Asked about data structures

Asked about java programmes

Q1. Tell me about your self
Ans. 
I am a passionate software developer with 5 years of experience in developing web applications using Java, Spring, and Angular.
• 5 years of experience in software development

• Proficient in Java, Spring, and Angular

• Passionate about coding and problem-solving
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Q2. Are you ready to relocate
Ans. 
Yes, I am open to relocating for the right opportunity.
• I am willing to relocate for the right job opportunity that aligns with my career goals.

• I have experience moving for previous jobs and am comfortable with the process.

• I am excited about the possibility of exploring a new city or country and experiencing a different culture.
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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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Hackerank (2-Easy,1-Medium,1-Hard) 90 mins

Q1. Mostly it was about my resume and the projects I did
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Q2. Some behavioural and leadership questions
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Q1. Binary search and the code
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Q2. Two sum problem and the code
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Q3. Quicksort and the code
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Q4. Some hr questions here and there
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Q1. C++ programming, calloc, malloc, global variable
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Q2. Palindrome of a string
Ans. 
A palindrome of a string is a word, phrase, number, or other sequence of characters that reads the same forward and backward.
• Check if the string is equal to its reverse to determine if it is a palindrome.

• Ignore spaces and punctuation when checking for palindromes.

• Examples: 'racecar', 'madam', 'A man, a plan, a canal, Panama!'
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Q3. Puzzles like the there are 4 mens and they have to travel across a bridge only two can go at a time and there is only one torch time take for mens to travel(A-1min B-3min C-7min D-10min)
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