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Bharti Airtel Software Engineer Interview Questions, Process, and Tips
Top Bharti Airtel Software Engineer Interview Questions and Answers
- Q1. N-th Fibonacci Number Problem Statement Given an integer ‘N’, your task is to find and return the N’th Fibonacci number using matrix exponentiation. Since the answer can ...read more
- Q2. Covid Vaccination Distribution Problem As the Government ramps up vaccination drives to combat the second wave of Covid-19, you are tasked with helping plan an effective ...read more
- Q3. Swap Kth Elements in an Array Given an array ARR of size N , perform the operation to swap the Kth element from the beginning with the Kth element from the end of the ar ...read more
Bharti Airtel Software Engineer Interview Experiences
8 interviews found
Anonymous
I applied via Recruitment Consulltant and was interviewed in Apr 2024. There were 2 interview rounds.
(3 Questions)
- Q1. JavaScript prototype sorting function
- Ans.
JavaScript prototype sorting function for arrays of strings
Use the Array.prototype.sort() method to sort an array of strings
Pass a compare function to specify the sorting order
Example: ['banana', 'apple', 'cherry'].sort((a, b) => a.localeCompare(b))
- Q2. Promise polyfill from scratch
- Ans.
Creating a Promise polyfill from scratch involves implementing the Promise API using callbacks and handling asynchronous operations.
Understand the Promise API and its methods (resolve, reject, then, catch)
Implement a constructor function that takes an executor function as an argument
Handle asynchronous operations using callbacks and setTimeout
Implement the then and catch methods to handle success and error cases respec
- Q3. React hooks -useEffect useMemo
(2 Questions)
- Q1. Session Management in applications
- Ans.
Session management is the process of securely managing user sessions in web applications.
Use cookies or tokens to track user sessions
Implement session timeout to prevent unauthorized access
Store session data securely on the server side
Use HTTPS to encrypt session data during transmission
- Q2. Why react is fast than other frameworks
- Ans.
React is faster than other frameworks due to its virtual DOM, efficient diffing algorithm, and use of server-side rendering.
React uses a virtual DOM which allows it to update only the necessary components instead of re-rendering the entire page.
React's efficient diffing algorithm compares the virtual DOM with the actual DOM to minimize updates and improve performance.
React supports server-side rendering, which can impr...
Skills evaluated in this interview
Not remembered. It was a campus interview. Its been a 2 years.
(2 Questions)
- Q1. Tell me about your self.
- Q2. Why you want to join?
Interview Preparation Tips
Gaurav Rokade
(2 Questions)
- Q1. What is MFS in abinitio?
- Ans.
MFS in Abinitio stands for Multi-File System, which is a feature that allows Abinitio graphs to read/write data from multiple files simultaneously.
MFS allows parallel processing of data from multiple files in Abinitio graphs
It helps in improving performance by distributing the workload across multiple files
MFS can be configured to read/write data from/to different file systems or locations
Example: Using MFS, a graph ca...
- Q2. What is MFS in abinitio
- Ans.
MFS in Abinitio stands for Multi-File System, which is a parallel processing framework for handling large volumes of data.
MFS allows for efficient processing of large data sets by distributing the workload across multiple files and nodes.
It provides fault tolerance and scalability by replicating data across multiple nodes.
MFS is commonly used in Abinitio graphs to optimize data processing performance.
It helps in improv...
Skills evaluated in this interview
Selected
I applied via Approached by Company and was interviewed before Mar 2023. There were 2 interview rounds.
(3 Questions)
- Q1. All About Java & OOPS concepts
- Q2. SQL Query & Questions
- Q3. Spring Boot, Spring, Microservices Questions
(4 Questions)
- Q1. Microservices Questions
- Q2. Spring & Spring Boot Questions
- Q3. Iot Questions & Vision-Goals Question
- Q4. Communication and Checking Ability to work in Different Teams
Bharti Airtel interview questions for designations
I was interviewed in Jan 2022.
(1 Question)
Round duration - 40 Minutes
Round difficulty - Medium
Round 1 was mainly focused on data structures and algorithms ,core java concepts and dbms
- Q1. You are given a string. What is the minimum number of characters that need to be inserted to convert it into a palindrome?
- Ans.
Tip 1 : Be clear and loud while solving problem , discuss approach with interviewer.
Round duration - 40 to 50 min
Round difficulty - Medium
Focussed mainly on projects and system design
Round duration - 30 Minutes
Round difficulty - Medium
Managerial round
Round duration - 20 Minutes
Round difficulty - Easy
Interview Preparation Tips
Tip 1 : Make you Data Structure and algorithms , Problem solving strong ( use to do some dsa problems on code studio and leetcode daily.
Tip 2 : Practiced Quality questions and mostly asked questions list available on codestudio( used company tags and topic tags) as quality matters more than quantity of questions .
Tip 3 : Give mock interviews, this really helped me as it gives you clearity and builds confidence.
Tip 4 : Read respective company’s interview experiences available on codestudio and other websites before going to actual interview, as this gives you idea about level of interviews and you can prepare beforehand.
Tip 5 : after solving dsa problem .Try to look in discussion section too as you can get more optimised or more efficient approach used by others to solve the problem.
Tip 6 : Prepare important concepts from Operating system,DBMS,System design too as that might also be asked.
Tip 7 : Do atleast 2 quality projects.
Not a Tip But : Lot of quality content available online, whenever felt like stuck with some concepts take help from senior or colleagues ( I use to watch coding ninja shorts by parikh jain whenever felt demotivated or stuck with concepts)
Tip 1 : Have a concise resume , don't fill your resume with unnecessary details like your address, relationship status etc.
Tip 2 :Resume should not be more than 2 pages( try to make it very concise in 1 page)
Skills evaluated in this interview
Get interview-ready with Top Bharti Airtel Interview Questions
I was interviewed in Jan 2022.
(3 Questions)
Round duration - 30 Minutes
Round difficulty - Easy
In this round, Interviewer tried to judge if my basics are clear or not.
He focused majorly on CS fundamentals.
He was pretty cooperative and gave me time after asking questions.
- Q1. Have you ever solved a complex Java problem on your own?
- Q2.
N-th Fibonacci Number Problem Statement
Given an integer ‘N’, your task is to find and return the N’th Fibonacci number using matrix exponentiation.
Since the answer can be very large, return the answer ...
- Ans. Recursive Approach (TLE)
- In this approach, we use recursion and uses a basic condition that :
- If ‘N’ is smaller than ‘1’(N<=1) we return ‘N’
- Else we call the function again as ninjaJasoos(N-1) + ninjaJasoos(N-2).
- In this way, we reached our answer.
O(N), where ‘N’ is the given number.
As recursion uses a stack of size ‘N’
Time Complexity: O(2^n)Explanation:O(2^N),...
- In this approach, we use recursion and uses a basic condition that :
- Q3.
Swap Kth Elements in an Array
Given an array
ARRof sizeN, perform the operation to swap the Kth element from the beginning with the Kth element from the end of the array.Example:
Input:
N = 5, K = 2
... - Ans. Traverse till Kth index.
- Initialize two pointers, one from the beginning and on the other end of the array.
- Move the beginning pointer K times and simultaneously move the end pointer backward K times.
- Swap the elements that are being pointed by the begging pointer and the end pointer.
O(1)
Since we are not using any extra space.
Time Complexity: O(n)Explanation:O(N), where N is the s...
(1 Question)
Round duration - 30 minutes
Round difficulty - Medium
It was in late evening, interviewer was quite cool and asked me quite basic things about myself.
- Q1.
Covid Vaccination Distribution Problem
As the Government ramps up vaccination drives to combat the second wave of Covid-19, you are tasked with helping plan an effective vaccination schedule. Your goal is...
- Ans. Brute force
The idea is to choose a peak value at the ‘dayNumber’ th index. Then we can create the array like a mountain with the peak of the mountain being at the ‘dayNumber’ th index. The sum of the elements of this array must be less than or equal to maxVaccines.If we find that the sum is greater, then we have chosen a high peak value, and if it is less, then it means we have chosen a smaller peak value. So we ...
Interview Preparation Tips
Tip 1 : Know your project from the core.
Tip 2 : Make your basics of CS fundamentals crystal clear.
Tip 3 : Do all must ask Dsa questions, try to achieve the goal of 5-10 questions everyday.
Tip 1 : Add your github and other problem solving sites like leetcode and codeforces on your resume. It leaves a good impact.
Tip 2 : Brief your role on the projects.
Tip 3 : Mention your achievements and skills. Again they leave a good impact.
Skills evaluated in this interview
Selected
I applied via LinkedIn and was interviewed before May 2023. There were 2 interview rounds.
I was given to solve two DS problems
I was to integrate a simple use case in android
Interview Preparation Tips
Interview Questionnaire
1 Question
- Q1. 1. difference between applicationContext and beanFactory. 2. questions related to synchronization in multi threading.
Top trending discussions
Interview questions from similar companies
I applied via Referral and was interviewed in Nov 2024. There was 1 interview round.
(1 Question)
- Q1. What is reset and rebase
Basi aptitude and coding mcq
(1 Question)
- Q1. What is hashmap
Bharti Airtel Interview FAQs
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Bharti Airtel Software Engineer Interview Process
based on 6 interviews
1 Interview rounds
- Technical Round
Software Engineer Interview Questions from Similar Companies
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Bharti Airtel Software Engineer Reviews and Ratings
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