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Bharti Airtel Software Developer Interview Questions and Answers

Updated 1 Jul 2025

9 Interview questions

A Software Developer was asked 2d ago
Q. What is this engineering
Ans. 

This engineering focuses on designing and developing software systems to solve problems and meet user needs.

  • Involves software design, coding, testing, and maintenance.

  • Examples include web development, mobile app development, and system software.

  • Utilizes programming languages like Python, Java, and C++.

  • Incorporates methodologies like Agile and DevOps for efficient project management.

A Software Developer was asked
Q. Write an SQL query to find the second highest salary.
Ans. 

SQL query to find the second highest salary

  • Use the ORDER BY clause to sort the salaries in descending order

  • Use the LIMIT clause to limit the result to the second row

  • Use a subquery to exclude the highest salary from the result

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A Software Developer was asked
Q. 

Stack using Two Queues Problem Statement

Develop a Stack Data Structure to store integer values using two Queues internally.

Your stack implementation should provide these public functions:

Explanation:

...
Ans. 

Implement a stack using two queues to store integer values with specified functions.

  • Create a stack using two queues internally

  • Implement functions for push, pop, top, size, and isEmpty

  • Handle edge cases such as empty stack or invalid data

  • Ensure the stack functions work correctly and efficiently

  • Test the implementation with sample inputs and outputs

A Software Developer was asked
Q. 

Trapping Rain Water Problem Statement

You are given a long type array/list ARR of size N, representing an elevation map. The value ARR[i] denotes the elevation of the ith bar. Your task is to determine the...

Ans. 

Calculate the total amount of rainwater that can be trapped between given elevations in an elevation map.

  • Iterate through the array to find the maximum height on the left and right of each bar.

  • Calculate the amount of water that can be trapped above each bar by taking the minimum of the maximum heights on the left and right.

  • Sum up the trapped water above each bar to get the total trapped water for the elevation map.

A Software Developer was asked
Q. 

Longest Consecutive Sequence Problem Statement

You are provided with an unsorted array/list ARR of N integers. Your task is to determine the length of the longest consecutive sequence present in the array.

...
Ans. 

Find the length of the longest consecutive sequence in an unsorted array of integers.

  • Iterate through the array and store each element in a set for constant time lookup.

  • For each element, check if it is the start of a sequence by looking for its previous number in the set.

  • Update the length of the current consecutive sequence and track the longest sequence found so far.

  • Return the length of the longest consecutive seq...

A Software Developer was asked
Q. 

Left View of a Binary Tree

Given a binary tree, your task is to print the left view of the tree. The left view of a binary tree contains the nodes visible when the tree is viewed from the left side.

Input...

Ans. 

Print the left view of a binary tree, containing nodes visible from the left side.

  • Traverse the tree in a level order manner and print the first node at each level.

  • Use a queue to keep track of nodes at each level.

  • Handle null nodes represented by -1 in the input.

A Software Developer was asked
Q. 

Longest Common Prefix After Rotation

You are given two strings 'A' and 'B'. While string 'A' is constant, you may apply any number of left shift operations to string 'B'.

Explanation:

Your task is to calcul...

Ans. 

Calculate the minimum number of left shift operations needed to achieve the longest common prefix between two strings.

  • Apply left shift operations to string B to find the longest common prefix with string A

  • Count the number of left shifts needed to achieve the longest common prefix

  • Return the minimum number of left shift operations for each test case

Are these interview questions helpful?
A Software Developer was asked
Q. 

Longest Subarray with Zero Sum

Ninja enjoys working with numbers, and as a birthday challenge, his friend provides him with an array consisting of both positive and negative integers. Ninja is curious to i...

Ans. 

Find the length of the longest subarray with zero sum in an array of integers.

  • Iterate through the array and keep track of the running sum using a hashmap.

  • If the running sum is seen before, the subarray between the current index and the previous index with the same sum is a subarray with zero sum.

  • Update the length of the longest subarray with zero sum as you iterate through the array.

  • Example: For arr1 = [1, -1, 3, ...

A Software Developer was asked
Q. 

Character Frequency Problem Statement

You are given a string 'S' of length 'N'. Your task is to find the frequency of each character from 'a' to 'z' in the string.

Example:

Input:
S : abcdg
Output:
1 ...
Ans. 

Given a string, find the frequency of each character from 'a' to 'z' in the string.

  • Create an array of size 26 to store the frequency of each character from 'a' to 'z'.

  • Iterate through the string and increment the count of the corresponding character in the array.

  • Print the array of frequencies as the output for each test case.

Bharti Airtel Software Developer Interview Experiences

6 interviews found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. How to optimise fetching 1 lakh entries from db
  • Ans. 

    Use pagination, indexing, caching, and query optimization to fetch 1 lakh entries efficiently from the database.

    • Implement pagination to fetch data in smaller chunks

    • Create indexes on columns frequently used in queries

    • Use caching to store frequently accessed data

    • Optimize queries by avoiding unnecessary joins and using appropriate indexes

    • Consider using database-specific optimizations like query hints or stored procedures

  • Answered by AI
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in Jan 2025, where I was asked the following questions.

  • Q1. What is your skils
  • Ans. 

    I possess strong programming skills, experience in software development, and a passion for problem-solving and continuous learning.

    • Proficient in languages like Java, Python, and JavaScript; developed a web application using React and Node.js.

    • Experience with database management systems such as MySQL and MongoDB; optimized queries for better performance.

    • Familiar with Agile methodologies; participated in Scrum meetings an...

  • Answered by AI
  • Q2. What is software developer
  • Ans. 

    A software developer designs, builds, and maintains software applications to solve problems and meet user needs.

    • Writes code in programming languages like Python, Java, or C++ to create software applications.

    • Collaborates with cross-functional teams, including designers and product managers, to define project requirements.

    • Tests and debugs software to ensure functionality and performance, using tools like JUnit or Seleniu...

  • Answered by AI
  • Q3. What is this engineering
  • Ans. 

    This engineering focuses on designing and developing software systems to solve problems and meet user needs.

    • Involves software design, coding, testing, and maintenance.

    • Examples include web development, mobile app development, and system software.

    • Utilizes programming languages like Python, Java, and C++.

    • Incorporates methodologies like Agile and DevOps for efficient project management.

  • Answered by AI
  • Q4. Thanks sir job dene k liye
  • Q5. What is java with pythan
  • Ans. 

    Java and Python are both high-level programming languages used for various applications, each with unique features and strengths.

    • Java is statically typed, while Python is dynamically typed.

    • Java uses a virtual machine (JVM) for execution, whereas Python is interpreted.

    • Java is commonly used for enterprise applications, while Python excels in data science and machine learning.

    • Example: Java is often used in Android app dev...

  • Answered by AI
  • Q6. What is Android with java
  • Ans. 

    Android is a mobile operating system developed by Google, primarily using Java for app development.

    • Android is based on the Linux kernel and designed for touchscreen mobile devices.

    • Java is one of the primary programming languages used for Android app development.

    • Android Studio is the official IDE for Android development, supporting Java and Kotlin.

    • Android applications are packaged as APK files and can be distributed via...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Company and work culture

I appeared for an interview in Jan 2022.

Round 1 - Video Call 

Round duration - 60 Minutes
Round difficulty - Medium

The round started with the Introduction followed by the discussion of projects done mentioned in my resume(all related to Machine Learning and Deep Learning). Then the recruiter asked me about my previous company experience and the work which I was doing there. After the discussion, interviewer started asking basic questions of SQL and PLSQL.

Round 2 - Video Call 

(1 Question)

Round duration - 70 Minutes
Round difficulty - Hard

Interviewer directly started asking questions in SQL,PLSQL AND SHELL SCRIPTING

  • Q1. Write an SQL query to find the second highest salary.
  • Ans. 

    SQL query to find the second highest salary

    • Use the ORDER BY clause to sort the salaries in descending order

    • Use the LIMIT clause to limit the result to the second row

    • Use a subquery to exclude the highest salary from the result

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaMandatory Experience in SQL, PLSQLAirtel interview preparation:Topics to prepare for the interview - DBMS, MySQL, PLSQL, Linux, Shell Scripting, Oracle Apps, Machine Learning with PythonTime required to prepare for the interview - 4 MonthsInterview preparation tips for other job seekers

Tip 1 : Remember all the basic commands and their syntax in PLSQL
Tip 2 : Try to optimize the query being asked in the interview.

Application resume tips for other job seekers

Tip 1 : No false things.
Tip 2 : Highlight your achievements and skills.

Final outcome of the interviewSelected

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Jul 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

Coding round with 3 DSA questions and a few MCQs on aptitude.

Round 3 - One-on-one 

(1 Question)

  • Q1. Interviewer asked questions on DSA.
Round 4 - One-on-one 

(1 Question)

  • Q1. The interviewer asked general questions on DSA.

I appeared for an interview before May 2021.

Round 1 - Coding Test 

(2 Questions)

Round duration - 60 Minutes
Round difficulty - Medium

Online Technical Interview ( Coding Round) with 2 medium-hard problem

  • Q1. 

    Trapping Rain Water Problem Statement

    You are given a long type array/list ARR of size N, representing an elevation map. The value ARR[i] denotes the elevation of the ith bar. Your task is to determine th...

  • Ans. 

    Calculate the total amount of rainwater that can be trapped between given elevations in an elevation map.

    • Iterate through the array to find the maximum height on the left and right of each bar.

    • Calculate the amount of water that can be trapped above each bar by taking the minimum of the maximum heights on the left and right.

    • Sum up the trapped water above each bar to get the total trapped water for the elevation map.

  • Answered by AI
  • Q2. 

    Longest Consecutive Sequence Problem Statement

    You are provided with an unsorted array/list ARR of N integers. Your task is to determine the length of the longest consecutive sequence present in the array...

  • Ans. 

    Find the length of the longest consecutive sequence in an unsorted array of integers.

    • Iterate through the array and store each element in a set for constant time lookup.

    • For each element, check if it is the start of a sequence by looking for its previous number in the set.

    • Update the length of the current consecutive sequence and track the longest sequence found so far.

    • Return the length of the longest consecutive sequence...

  • Answered by AI
Round 2 - Coding Test 

(2 Questions)

Round duration - 60 Minutes
Round difficulty - Medium

Online Technical Coding Interview

  • Q1. 

    Stack using Two Queues Problem Statement

    Develop a Stack Data Structure to store integer values using two Queues internally.

    Your stack implementation should provide these public functions:

    Explanation:

    ...
  • Ans. 

    Implement a stack using two queues to store integer values with specified functions.

    • Create a stack using two queues internally

    • Implement functions for push, pop, top, size, and isEmpty

    • Handle edge cases such as empty stack or invalid data

    • Ensure the stack functions work correctly and efficiently

    • Test the implementation with sample inputs and outputs

  • Answered by AI
  • Q2. 

    Left View of a Binary Tree

    Given a binary tree, your task is to print the left view of the tree. The left view of a binary tree contains the nodes visible when the tree is viewed from the left side.

    Inpu...

  • Ans. 

    Print the left view of a binary tree, containing nodes visible from the left side.

    • Traverse the tree in a level order manner and print the first node at each level.

    • Use a queue to keep track of nodes at each level.

    • Handle null nodes represented by -1 in the input.

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 cgpaAirtel interview preparation:Topics to prepare for the interview - Data structure and algorithms, Object Oriented Programming, Database, SQL, Coding BasicsTime required to prepare for the interview - 6 MonthsInterview preparation tips for other job seekers

Tip 1 : Practice problem solving as much as you can 
Tip 2 : Try to solve online coding problem as much as possible to get good understanding of DSA
Tip 3 : Be confident with your Resume

Application resume tips for other job seekers

Tip 1 : Should have some projects on resume 
Tip 2 : Resume sections should be clear and no false information

Final outcome of the interviewSelected

Skills evaluated in this interview

I appeared for an interview in Oct 2020.

Round 1 - Coding Test 

(2 Questions)

Round duration - 90 minutes (60 minutes for coding and 30 minutes for MCQs)
Round difficulty - Medium

The test was conducted in the evening from 7:00 pm to 8:30 pm. Because of the covid situation, the test was online and was given by all the students from their home. 
Login window of 15 minutes was given and all students were supposed to login within initial 15 minutes (between 7:00 and 7:15 pm). The test was conducted on AMCAT and webcam was on during the whole test duration.
There were two sections in the test: 1.) Coding round with 2 coding questions - 60 minutes (2.) MCQ round with 30 MCQs - 30 minutes
120 students appeared for this round and 20 were shortlisted for further process.

  • Q1. 

    Character Frequency Problem Statement

    You are given a string 'S' of length 'N'. Your task is to find the frequency of each character from 'a' to 'z' in the string.

    Example:

    Input:
    S : abcdg
    Output:
    1...
  • Ans. 

    Given a string, find the frequency of each character from 'a' to 'z' in the string.

    • Create an array of size 26 to store the frequency of each character from 'a' to 'z'.

    • Iterate through the string and increment the count of the corresponding character in the array.

    • Print the array of frequencies as the output for each test case.

  • Answered by AI
  • Q2. 

    Longest Common Prefix After Rotation

    You are given two strings 'A' and 'B'. While string 'A' is constant, you may apply any number of left shift operations to string 'B'.

    Explanation:

    Your task is to calcu...

  • Ans. 

    Calculate the minimum number of left shift operations needed to achieve the longest common prefix between two strings.

    • Apply left shift operations to string B to find the longest common prefix with string A

    • Count the number of left shifts needed to achieve the longest common prefix

    • Return the minimum number of left shift operations for each test case

  • Answered by AI
Round 2 - Video Call 

(1 Question)

Round duration - 50-60 minutes
Round difficulty - Medium

This round started at 11 am and went till 3 pm. 
Out of 120 students that appeared in online coding test, 20 were shortlisted for the first round of interviews.
In this round, everyone was asked some moderate level coding questions. We were supposed to write the code in our IDE, present the screen and show the interviewer the output of our code.
The interview started with the introduction being followed by 2 coding problems.

  • Q1. 

    Longest Subarray with Zero Sum

    Ninja enjoys working with numbers, and as a birthday challenge, his friend provides him with an array consisting of both positive and negative integers. Ninja is curious to ...

  • Ans. 

    Find the length of the longest subarray with zero sum in an array of integers.

    • Iterate through the array and keep track of the running sum using a hashmap.

    • If the running sum is seen before, the subarray between the current index and the previous index with the same sum is a subarray with zero sum.

    • Update the length of the longest subarray with zero sum as you iterate through the array.

    • Example: For arr1 = [1, -1, 3, 2, -2...

  • Answered by AI
Round 3 - HR 

Round duration - 20 minutes
Round difficulty - Medium

7 students were shortlisted for the HR round. This round started at 7:30 pm and went till 8:30 pm.
Like all the other rounds, this round too was virtual (on google meet). In the beginning, the interviewer introduced himself and then asked questions based on my resume.
All the 7 candidates were selected in the HR round.

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from National Institute of Technology, Kurukshetra. Eligibility criteriaAbove 7.5 CGPAAirtel interview preparation:Topics to prepare for the interview - Object-Oriented Programming, Data Structures and Algorithms, Operating System, Database Management System, Computer NetworksTime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Questions are asked on DSA, so practice questions and it is not the number of questions you practice, but how well you practice the questions. Prepare a notebook and write down the approach you follow. Make proper notes and maintain that notebook. Will help for quick revision.
Tip 2 : Conceptual questions are asked from topics other than DSA. So watching videos on youtube will not help. Read the book thoroughly to make yourself ready for interviews.
Tip 3 : ALWAYS read about the real-life examples of the concepts you read. This is often asked in interviews and you will definitely regret failing to answer this question.

Application resume tips for other job seekers

Tip 1 : Having projects in resume will help you to give the direction to your interview, which increases the chances of selection.
Tip 2 : Add some achievements other than academics, it shows that you are a team player and increases the probability of getting shortlisted. BUT do not write anything that is not true or else, it will backfire.

Final outcome of the interviewSelected

Skills evaluated in this interview

Top trending discussions

View All
Interview Tips & Stories
6d (edited)
a team lead
Why are women still asked such personal questions in interview?
I recently went for an interview… and honestly, m still trying to process what just happened. Instead of being asked about my skills, experience, or how I could add value to the company… the questions took a totally unexpected turn. The interviewer started asking things like When are you getting married? Are you engaged? And m sure, if I had said I was married, the next question would’ve been How long have you been married? What does my personal life have to do with the job m applying for? This is where I felt the gender discrimination hit hard. These types of questions are so casually thrown at women during interviews but are they ever asked to men? No one asks male candidates if they’re planning a wedding or how old their kids are. So why is it okay to ask women? Can we please stop normalising this kind of behaviour in interviews? Our careers shouldn’t be judged by our relationship status. Period.
Got a question about Bharti Airtel?
Ask anonymously on communities.

Interview questions from similar companies

Interview Questionnaire 

3 Questions

  • Q1. The questions primarily started with discussion on my internships and minor project
  • Q2. Many questions were asked about OOPs concepts like virtual function, multiple inheritance, function overloading etc you are supposed to define and implement all of them on paper
  • Q3. I was asked about my favorite subject, opted computer networks. So, was asked about computer networks basics like ISO OSI, virtual LANs, QoS, AdHoc networks, WiiMax and Wifi

Interview Preparation Tips

Round: Technical Interview
Experience: Technical continues for about 35 minutes, the questions primarily started with discussion on my internships and minor project.
Many questions were asked about OOPs concepts like virtual function, multiple inheritance, function overloading etc you are supposed to define and implement all of them on paper.
I was asked about my favorite subject, opted computer networks. So, was asked about computer networks basics like ISO OSI, virtual LANs, QoS, AdHoc networks, WiiMax and Wifi.

Round: HR Interview
Experience: I was primarily asked about my family background, likes, hobbies etc

College Name: NA
Are these interview questions helpful?

Interview Questionnaire 

7 Questions

  • Q1. Array sorting – Bubble sort and its complexity?
  • Ans. 

    Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.

    • Bubble sort has a worst-case and average complexity of O(n^2), where n is the number of items being sorted.

    • It is not efficient for large lists and is generally used for educational purposes.

    • Example: Sorting an array of strings in alphabetical order using bubble sort.

  • Answered by AI
  • Q2. Various storage classes in C? Difference between auto, static?
  • Ans. 

    Auto and static are two storage classes in C. Auto variables are local to a function while static variables retain their value between function calls.

    • Auto variables are created when a function is called and destroyed when the function ends

    • Static variables are initialized only once and retain their value between function calls

    • Auto variables have garbage value if not initialized while static variables are initialized to ...

  • Answered by AI
  • Q3. Questions on Pointers, memory management, scope of variables, etc were asked
  • Q4. What are your strengths and weaknesses?
  • Ans. 

    My strengths include problem-solving, attention to detail, and adaptability. My weaknesses include public speaking and impatience.

    • Strengths: problem-solving, attention to detail, adaptability

    • Weaknesses: public speaking, impatience

  • Answered by AI
  • Q5. Where do you see yourself 5 years from now?
  • Ans. 

    In 5 years, I see myself as a senior software developer leading a team of developers to create innovative solutions.

    • Leading a team of developers to create innovative solutions

    • Continuing to learn and stay up-to-date with the latest technologies

    • Contributing to the growth and success of the company

    • Mentoring and coaching junior developers

    • Taking on more responsibilities and challenges

  • Answered by AI
  • Q6. What are your interests?
  • Ans. 

    I am interested in exploring new technologies and learning new programming languages.

    • Exploring new technologies

    • Learning new programming languages

    • Attending tech conferences and meetups

    • Contributing to open source projects

  • Answered by AI
  • Q7. Are you ready to relocate?
  • Ans. 

    Yes, I am open to relocation for the right opportunity.

    • I am willing to relocate for the right job opportunity

    • I am open to exploring new cities and cultures

    • I am willing to consider relocation assistance

    • I am excited about the prospect of working in a new environment

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: The written test had 75 questions and we were allotted 80 minutes for the same.There were four sections: Verbal, Analytical, Attention to Detail and Technical (C and Data Structures).First, there was the verbal section. Basically, questions on articles, synonyms and antonyms were asked. Two passages were also given and related questions were asked. The analytical section included questions from quant (set theory, data sufficiency, cubes,etc.) and Logical Reasoning.
The third section was the easiest and did not require any special preparation. From a group of patterns, we had to determine if they were alike or different.
The fourth was the technical section and had 5 questions each from C and DS. This was the toughest section.Time management is absolutely important. There were sectional cutoffs and so we had to clear each section.

Round: Technical Interview
Experience: It was the PI round. First, we had the technical interview. Various questions on C and Data Structures were asked.Next, we had the HR interview. Here, the usual questions were asked. Some of them were:

Round: HR Interview
Experience: Also, questions from what I had written in my CV were asked.On the whole, the interview went quite well. And finally, I was selected.

Skills: Algorithm, C, C++
College Name: NIT PATNA

Skills evaluated in this interview

Interview Questionnaire 

8 Questions

  • Q1. Basic coding question from C, Data Structures and DBMS
  • Q2. Questions from java and C++ (as it was mentioned in the resume)
  • Q3. The main point of concentration was projects and training
  • Q4. Some people were also asked questions related to data communication and basic electronics
  • Q5. Questions like ‘Tell me about yourself’. (Try to create a good impression)
  • Q6. Questions on your personality. Show confidence while answering. The HR might try to oppose what you say and see how you react
  • Q7. Standard puzzles?
  • Q8. Questions like, ‘Why do you want to join Verizon?’, ‘Why should we hire you?’

Interview Preparation Tips

Round: Test
Experience: Consisted of Quantitative aptitude, Logical reasoning, Data Interpretation and English.(Time management is important)

Skills: C, C++, Data structure, Algorithm
College Name: na

I appeared for an interview before Mar 2021.

Round 1 - Group Discussion 

Round duration - 15 minutes
Round difficulty - Easy

This was a group discussion round where we were divided into groups of 10 and we had 15 minutes for GD.

Round 2 - Face to Face 

(6 Questions)

Round duration - 60 minutes
Round difficulty - Medium

This is all about how good you are with the fundamentals. Out of 10 I would give it a 6.5 on difficulty.

  • Q1. 

    Reverse the String Problem Statement

    You are given a string STR which contains alphabets, numbers, and special characters. Your task is to reverse the string.

    Example:

    Input:
    STR = "abcde"
    Output:
    "e...
  • Ans. 

    Reverse a given string containing alphabets, numbers, and special characters.

    • Iterate through the string from the end to the beginning and append each character to a new string.

    • Use built-in functions like reverse() or StringBuilder in languages like Python or Java for efficient reversal.

    • Handle special characters and numbers while reversing the string.

    • Ensure to consider the constraints on the length of the string and the...

  • Answered by AI
  • Q2. What is a deadlock?
  • Ans. 

    A deadlock is a situation in which two or more processes are unable to proceed because each is waiting for the other to release a resource.

    • Occurs in multitasking environments where processes compete for limited resources

    • Can be resolved using techniques like deadlock prevention, deadlock avoidance, and deadlock detection

    • Example: Process A holds Resource X and waits for Resource Y, while Process B holds Resource Y and wa...

  • Answered by AI
  • Q3. What is a thread?
  • Ans. 

    A thread is a lightweight sub-process that allows concurrent execution within a single process.

    • Threads share the same memory space within a process.

    • Threads are used to achieve parallelism and improve performance.

    • Examples of threads include the main thread in a program and worker threads in a multi-threaded application.

  • Answered by AI
  • Q4. What is the difference between Multiprocessing and Multiprogramming?
  • Ans. 

    Multiprocessing involves multiple processors executing multiple tasks simultaneously, while multiprogramming involves multiple programs sharing a single processor by switching between them.

    • Multiprocessing utilizes multiple processors to execute multiple tasks concurrently.

    • Multiprogramming involves multiple programs sharing a single processor by switching between them.

    • Multiprocessing is more efficient in terms of perfor...

  • Answered by AI
  • Q5. Can you explain the process life cycle in an operating system?
  • Ans. 

    Process life cycle in an operating system involves creation, execution, termination, and resource management.

    • Creation: When a process is created, it is assigned a unique process ID and allocated necessary resources.

    • Execution: The process is then scheduled by the operating system to run on the CPU.

    • Termination: Once the process completes its task or is terminated by the user, it is removed from memory.

    • Resource Management...

  • Answered by AI
  • Q6. What are the differences between Windows XP and Windows 7?
  • Ans. 

    Windows XP and Windows 7 are both operating systems developed by Microsoft, but they have several key differences.

    • User interface: Windows 7 has a more modern and user-friendly interface compared to Windows XP.

    • Performance: Windows 7 is generally faster and more stable than Windows XP.

    • Security: Windows 7 has more advanced security features and updates compared to Windows XP.

    • Hardware support: Windows 7 supports newer hard...

  • Answered by AI
Round 3 - Face to Face 

(6 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical round with questions on DBMS and Networking mainly.

  • Q1. What is the difference between RDBMS and DBMS?
  • Ans. 

    RDBMS is a type of DBMS that stores data in a structured format with relationships between tables.

    • RDBMS enforces referential integrity and allows for normalization of data.

    • DBMS is a general term for any system that manages databases, while RDBMS specifically refers to relational databases.

    • Examples of RDBMS include MySQL, Oracle, and SQL Server.

    • Examples of DBMS include MongoDB and Redis.

  • Answered by AI
  • Q2. What is an Object-Oriented Database Management System (OODBMS)?
  • Ans. 

    An Object-Oriented Database Management System (OODBMS) is a type of database management system that supports the creation and management of objects in a database.

    • OODBMS stores data in the form of objects, which can contain attributes and methods.

    • It allows for complex data structures and relationships to be represented more easily.

    • Examples of OODBMS include db4o, ObjectDB, and ObjectStore.

  • Answered by AI
  • Q3. How do you find the number of unique values in a SQL database?
  • Ans. 

    Use the COUNT DISTINCT function in SQL to find the number of unique values in a database.

    • Use the COUNT DISTINCT function along with the column name to count the number of unique values in that column.

    • For example, SELECT COUNT(DISTINCT column_name) FROM table_name;

    • You can also use GROUP BY to find the number of unique values for multiple columns.

  • Answered by AI
  • Q4. What is the difference between a hub and a switch in networking?
  • Ans. 

    A hub operates at the physical layer and broadcasts data to all devices on the network, while a switch operates at the data link layer and forwards data only to the intended recipient.

    • Hub operates at the physical layer, while switch operates at the data link layer

    • Hub broadcasts data to all devices on the network, while switch forwards data only to the intended recipient

    • Switch is more efficient and secure compared to a ...

  • Answered by AI
  • Q5. Can you explain the different OSI layers?
  • Ans. 

    The OSI (Open Systems Interconnection) model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven different layers.

    • Physical Layer: Deals with the physical connection between devices. Example: Ethernet cables.

    • Data Link Layer: Responsible for node-to-node communication. Example: MAC addresses.

    • Network Layer: Manages routing of data packets. Example: IP addresses.

    • T...

  • Answered by AI
  • Q6. What are the different protocols supported at each OSI layer?
  • Ans. 

    Different protocols supported at each OSI layer

    • Layer 1 (Physical): Ethernet, Wi-Fi, Bluetooth

    • Layer 2 (Data Link): MAC, PPP, HDLC

    • Layer 3 (Network): IP, ICMP, ARP

    • Layer 4 (Transport): TCP, UDP, SCTP

    • Layer 5 (Session): NetBIOS, PPTP

    • Layer 6 (Presentation): SSL, TLS

    • Layer 7 (Application): HTTP, FTP, SMTP

  • Answered by AI
Round 4 - HR 

Round duration - 15 minutes
Round difficulty - Easy

IF you make it to the HR round you are selected. All 28 that attended got selected . It was more like stuff for formality. The usual questions.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAEricsson India interview preparation:Topics to prepare for the interview - Data Structures, Algorithms, System Design, Aptitude, OOPS, DBMS, OSTime required to prepare for the interview - 4 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

Bharti Airtel Interview FAQs

How many rounds are there in Bharti Airtel Software Developer interview?
Bharti Airtel interview process usually has 2-3 rounds. The most common rounds in the Bharti Airtel interview process are One-on-one Round, Resume Shortlist and Coding Test.
What are the top questions asked in Bharti Airtel Software Developer interview?

Some of the top questions asked at the Bharti Airtel Software Developer interview -

  1. How to optimise fetching 1 lakh entries from...read more
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Overall Interview Experience Rating

4/5

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Difficulty level

Easy 67%
Moderate 33%

Duration

Less than 2 weeks 100%
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Bharti Airtel Software Developer Salary
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₹11 L/yr - ₹20 L/yr
45% more than the average Software Developer Salary in India
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4.2/5

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3.8

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4.1

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3.5

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3.9

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3.8

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2.9

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3.6

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