Airtel Payments Bank Data Engineer Interview Questions and Answers

Q1. Data structure [Array]
Add your answer
Q2. Core JAVA questions[ exception handling , OOPS , Collections Framework ]
Add your answer
Q3. JDBC and SQL questions
Add your answer

Q1. Project discussion
Add your answer
Q2. Tell me one scenerio under which you did development
Ans. 
Developed a mobile app for tracking daily water intake
• Researched existing water tracking apps for inspiration

• Designed user interface for easy input of water consumption

• Implemented backend database to store user data

• Tested app with beta users for feedback and improvements
Answered by AI
Add your answer

90 min MCQ +coding test on hackerrank.

Q1. Sort colors DSA question
Add your answer
Q2. Detect cycle in a linked list
Ans. 
Use Floyd's Tortoise and Hare algorithm to detect cycle in a linked list.
• Initialize two pointers, slow and fast, at the head of the linked list.

• Move slow pointer by one step and fast pointer by two steps.

• If they meet at some point, there is a cycle in the linked list.
Answered by AI
Add your answer

Q1. Was asked about why you want to join the company,my experience etc.
Add your answer

Q1. They asked to design a database table
Add your answer

Aptitude test of 85 min

Q1. OOP concepts : - Inheritence , polymorphism
Add your answer
Q2. DSA :- arrays , strings basic leetcode questions
Add your answer

2 problem was given to solve
1) Smallest Negative balance - -----%20America%20-%20Weekly%20Algorithm%20Challenges/Week%2021%20Algorithm%20Challenge/Smallest%20Negative%20Balance.md
2) Find the absolute difference between alpha & beta from the array.
Alpha -An element k in a array occurs k consecutive time
Beta - An element k in an array occurs k consecutive time starting from index k

Sample input
Arr[] = {2,2,2,4,4,4,4,1,2,2]
Output
Alpha - 3
Beta - 1
Absolute difference - 1

Note : consider array index starts with 1

Dataweave logic questions

Q1. Basic HR questions
Add your answer
Q2. Prepare basic interview answers
Add your answer

Q1. C programming and its basic question like memory segments, compilation stages, structure and semaphore. Single linked list implementation.
Add your answer

Q1. There were two managers in this interview. Asked about my roles and responsibilities in current project and gave some scenario in C programming to solve. Questions on embedded systems like process, thread...read more
Add your answer

Q1. Salary discussion
Add your answer

Tableau intensive assignment with few questions on SQL and basic Python

Q1. Discussion on submitted assignment and current job role
Add your answer
Q2. What kind of analysis have you done in your current role?
Add your answer

Q1. Basic discussion on why I am switching from my current company and salary discussion
Add your answer