NAB Innovation Center India Software Engineer Interview Questions and Answers

Q1. System design , HLD, LLD , coding question
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Core java , string, thread , sql, mvc, spring boot

Q1. 2 coding questions on array and string
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Q2. Sorting , thread
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Q1. Managerial round
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Q2. Project and some basic questions
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Q3. Describe your project
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Island Perimeter and Number of Provinces. Basic Leetcode question

This is Simple medium level

Q1. Tell me about Yourself ?
Ans. 
I am a passionate software engineer with a strong background in coding and problem-solving.
• Experienced in multiple programming languages such as Java, Python, and C++

• Worked on various projects including web development and mobile applications

• Strong understanding of data structures and algorithms

• Excellent communication and teamwork skills

• Constantly learning and adapting to new technologies
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Q2. Project Based Questions and Related to Resume Based ?
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Q1. Tell us about your Background and Experience that would make sure you are fit for this role
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Q2. Write a program that converts the alternate letters of a sentence into uppercase, whitespace excluded
Ans. 
Program to convert alternate letters of a sentence to uppercase, excluding whitespace
• Iterate through each character of the sentence

• Check if the character is a letter and if its index is odd

• Convert the letter to uppercase if conditions are met
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Q3. Balanced parenthesis program
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Q4. Explain your approach to solving balanced parenthesis program
Ans. 
I approach solving balanced parenthesis program by using a stack data structure.
• Use a stack to keep track of opening parentheses

• Iterate through the input string and push opening parentheses onto the stack

• When a closing parenthesis is encountered, pop from the stack and check if it matches the closing parenthesis

• If stack is empty at the end and all parentheses are matched, the string is balanced
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Q5. Is there anything else that you want to tell us about yourselves?
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Q1. Tell me about yourself.
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Q2. Tell me about your project, tools and algorithms used
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Q3. Write a program to print the top five students in a classroom, including edge cases
Ans. 
Program to print top five students in a classroom, handling edge cases
• Create a list of students with their grades

• Sort the list in descending order based on grades

• Print the top five students, handling cases where there are less than five students or ties in grades
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Q4. Exceptional handling
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Q1. Program to check if the given string is palindrome
Ans. 
A program to check if a given string is a palindrome.
• Create a function that takes a string as input.

• Reverse the string and compare it with the original string.

• If they are the same, then the string is a palindrome.

• Example: 'racecar' is a palindrome.

• Example: 'hello' is not a palindrome.
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Q2. Program to return Fibonacci series
Ans. 
A program to return Fibonacci series using recursion or iteration
• Use recursion to generate Fibonacci series

• Use iteration to generate Fibonacci series

• Handle edge cases like negative input or input of 0 or 1

• Example: Fibonacci series up to 10 - 0, 1, 1, 2, 3, 5, 8, 13, 21, 34
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Q3. Different ways to create a table in python
Ans. 
Different ways to create a table in Python include using pandas, sqlite3, and SQLAlchemy libraries.
• Using pandas library to create a table from a dictionary or list of lists

• Using sqlite3 library to create a table in a SQLite database

• Using SQLAlchemy library to create a table in a SQL database
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Behavioural and culture fit

It was around 2.5 hours which includes 2 coding ques and MCQ from DBMS, OS, Aptitude and Programming language (C++/Java)

Q1. It was purely resume based. He asked me about the projects.
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Q2. He also tested my knowledge on the technologies I have used in those projects.
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