Airtel Payments Bank Product Operations Executive Interview Questions and Answers

Round duration - 60 minutes
Round difficulty - Medium

test timing: 7-8 pm
2 programming questions
webcam proctored

Q1. 
Minimum Cost to Reach End Problem
You are provided with an array ARR of integers of size 'N' and an integer 'K'. The goal is to move from the starting index to the end of the array with the minimum possib...read more
Ans. 
Find minimum cost to reach end of array by jumping with constraints
• Use dynamic programming to keep track of minimum cost at each index

• Iterate through the array and update the minimum cost based on reachable indices within K steps

• Calculate cost to jump from current index to reachable indices and update minimum cost accordingly
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Round duration - 90 minutes
Round difficulty - Medium

Online test of 90 minutes at 5:30 pm

Q1. What are the basic concepts of Object-Oriented Programming, and how do they relate to data structures and algorithms?
Ans. 
Object-Oriented Programming concepts include encapsulation, inheritance, and polymorphism, which are used to organize and manipulate data in data structures and algorithms.
• Encapsulation: Bundling data and methods that operate on the data together in a single unit (object). Example: a class representing a car with properties like color and methods like drive().

• Inheritance: Allowing a class to inherit properties and meth...read more
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Round duration - 45 minutes
Round difficulty - Medium

Online coding interview of 45 minutes at 6:10PM.

Q1. 
String Compression Problem Statement
Implement a program that performs basic string compression. When a character is consecutively repeated more than once, replace the consecutive duplicates with the coun...read more
Ans. 
Implement a program to compress a string by replacing consecutive duplicates with the count of repetitions.
• Iterate through the string and keep track of consecutive characters and their counts.

• Replace consecutive duplicates with the count of repetitions.

• Handle the case where the count of repetitions is greater than 1 and less than or equal to 9.
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Q2. Can you explain queries related to insert, selection, and joins in a database management system?
Ans. 
Explanation of insert, select, and join queries in a database management system.
• Insert query is used to add new records to a table.

• Select query is used to retrieve data from a table based on specified criteria.

• Join query is used to combine rows from two or more tables based on a related column between them.

• Examples: INSERT INTO table_name (column1, column2) VALUES (value1, value2); SELECT * FROM table_name WHERE condit...read more
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Round duration - 30 minutes
Round difficulty - Easy

HR round of 30 minutes at 6pm