Airtel Africa Senior Software Engineer Interview Questions and Answers

Q1. Technical Interview + Coding
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Q1. Technical Interview
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Q1. It was completely on the project worked on using the spring boot. 1)how to handle if the applciation is restarting continuously 2)how to load multiple applccation property file in sequential way 3)how to h...read more
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Q1. Project related questions
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Coding Leetcode medium question

Q1. Design BookMyShow HLD and LLD
Ans. 
Design high-level and low-level architecture for BookMyShow
• HLD should include components like user interface, booking engine, payment gateway, etc.

• LLD should detail the classes, methods, and interactions within each component

• Use technologies like Java, Spring Boot, MySQL for backend and React for frontend

• Consider scalability, fault tolerance, and security in the design
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Q1. Salary, Role Expectations and Negotiations
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Q1. Technical Questions relevant to your domain and your previous experience.
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Q1. This Round is with your manager and Questions relevant to behavior, self-confidence, technical in quick overview
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Q1. Relevant to experience and self confidence, salary Discussion and further process guidelines
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Q1. Longest Palindromic Substring
Ans. 
Find the longest palindromic substring in a given string.
• Use dynamic programming to check if substrings are palindromes.

• Start with single characters as potential palindromes and expand outwards.

• Keep track of the longest palindrome found so far.
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Q2. Find the Kth largest integer in the Array
Ans. 
Find the Kth largest integer in the Array
• Sort the array in descending order

• Return the element at index K-1
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Q1. Design youtube live streaming
Ans. 
Design a system for live streaming on YouTube platform.
• Use RTMP protocol for streaming live video to YouTube servers

• Implement a live chat feature for viewers to interact with the streamer

• Include options for viewers to like, share, and subscribe during the live stream

• Provide analytics for streamers to track viewership and engagement

• Ensure scalability to handle high traffic during popular live streams
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Q1. Basic PHP Questions on Arrays, implode, explode function difference, include, require difference.etc
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Q2. Basics MySQL questions, asked some queries
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Q1. Asked questions based on payment gateway.
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Q1. Salary discussion, explained roles and responsibilities
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Coding test data structures and language related

Q1. Related to resume technology
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1. Reversing a linked list.
2. Find all substrings in a string.

Q1. Oops Concepts, DBMS, Array Manipulation, Design Patterns.
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Q2. System Design- Design an online food delivery platform
Ans. 
Design an online food delivery platform
• Identify target audience and their needs

• Create a user-friendly interface for ordering food

• Develop a robust backend system for managing orders and deliveries

• Partner with local restaurants to offer a wide variety of cuisines

• Implement a payment gateway for secure transactions

• Provide real-time order tracking for customers

• Ensure food safety and quality through proper packaging and deli...read more
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