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Airtel X- Labs Interview Questions, Process, and Tips
Top Airtel X- Labs Interview Questions and Answers
- Q1. print left view of a binary treeasked in Software Developer interview
- Q2. What are the test cases you can write for testing history in YouTube kind channelasked in QA Engineer interview
- Q3. LRU cache implementation with code.asked in Software Development Engineer interview
Airtel X- Labs Interview Experiences
13 interviews found
Anonymous
(2 Questions)
- Q1. Merge overlapping integers
- Ans.
Merge overlapping intervals in an array of integers
Sort the intervals based on the start value
Iterate through the intervals and merge overlapping ones
Return the merged intervals
- Q2. Merge two sorted array
- Ans.
Merge two sorted arrays into a single sorted array
Create a new array to store the merged result
Compare elements from both arrays and add the smaller one to the result array
Continue this process until all elements from both arrays are merged
(2 Questions)
- Q1. Sort 0 1 2 array
- Ans.
Sort an array of strings containing only 0s, 1s, and 2s.
Use counting sort algorithm to sort the array in linear time complexity.
Count the occurrences of 0s, 1s, and 2s in the array.
Reconstruct the array with the sorted counts.
- Q2. Print left view of a binary tree
- Ans.
Print the left view of a binary tree
Traverse the tree in a level order traversal
Print the first node at each level encountered
Use a queue to keep track of nodes at each level
Skills evaluated in this interview
Software Developer Interview Questions asked at other Companies
(2 Questions)
- Q1. How to find and remove duplicates in table
- Ans.
Use SQL query with GROUP BY and HAVING clause to find and remove duplicates in a table.
Use SELECT statement with COUNT() function to identify duplicates
Use GROUP BY clause to group duplicate records
Use HAVING clause to filter out groups with count greater than 1
Use DELETE statement to remove duplicates based on identified criteria
- Q2. Project explanation
(1 Question)
- Q1. What are the test cases you can write for testing history in YouTube kind channel
- Ans.
Test cases for testing history in YouTube-like channel
Verify that the history page displays the correct list of videos watched by the user
Test if the history can be cleared successfully
Check if the history is updated in real-time as the user watches videos
Ensure that the history is accessible only to the logged-in user
Verify that the history page loads quickly and efficiently
Skills evaluated in this interview
QA Engineer Interview Questions asked at other Companies
Selected
I applied via Approached by Company and was interviewed before Jun 2023. There were 4 interview rounds.
(1 Question)
- Q1. React hands on and Machine coding
(1 Question)
- Q1. React hands on / Machine coding round
(1 Question)
- Q1. React hands on and machine coding
(1 Question)
- Q1. React hands on and LLD
Senior Software Engineer Interview Questions asked at other Companies
Selected
I applied via Approached by Company and was interviewed before May 2023. There were 2 interview rounds.
(1 Question)
- Q1. DSA Intermediate (topic Binary search) and then development related questions from JAVA, Spring Boot, MySql.
(1 Question)
- Q1. DSA (Intermediate) from Tree, then OOPS, DB related questions and LLD
Interview Preparation Tips
Senior Software Engineer Interview Questions asked at other Companies
Airtel X- Labs interview questions for popular designations
Selected
I applied via Approached by Company and was interviewed before Sep 2022. There were 3 interview rounds.
(1 Question)
- Q1. Basics core java , selenium , easy coding array and string questions , api automatiom concepts
(1 Question)
- Q1. Core java, coding, api automation, postman , selenium , testng , maven, performance
Sdet Lead Interview Questions asked at other Companies
Get interview-ready with Top Airtel X- Labs Interview Questions
(2 Questions)
- Q1. Data structure and algorithm
- Q2. Technical design discussion
(1 Question)
- Q1. Technical design discussion
Interview Preparation Tips
Senior Lead Interview Questions asked at other Companies
Selected
I applied via Referral and was interviewed before May 2022. There were 3 interview rounds.
Round One - Two Coding Tests. easy Level one was from String other was from Array.
Round Two - Interview Question on Testing Fundamental.
(2 Questions)
- Q1. Q-Separate 0's and 1's from String Q-Reverse the string word-wise.
- Ans.
Separate 0's and 1's from string and reverse the string word-wise.
Iterate through the string and separate 0's and 1's into separate arrays
Join the arrays back into a single string with 0's first and 1's second
Split the string into an array of words and reverse the order of the array
Join the array back into a single string with words in reverse order
- Q2. Q-Explain Automation Framework. Q- HTTP codes
- Ans.
Automation Framework is a set of guidelines and standards for creating and maintaining automated tests.
Automation Framework provides a structure for organizing test code and data
It helps in reducing maintenance efforts and increasing test coverage
Examples of Automation Frameworks are Selenium, Appium, and TestNG
HTTP codes are status codes returned by a server in response to a client's request
Some common HTTP codes are ...
Interview Preparation Tips
Skills evaluated in this interview
Senior Quality Assurance Engineer 2 Interview Questions asked at other Companies
I applied via LinkedIn and was interviewed in Jul 2021. There was 1 interview round.
Interview Questionnaire
3 Questions
- Q1. Design url shortner.
- Ans.
Design a URL shortener
Generate a unique short code for each URL
Store the mapping of short code to original URL in a database
Redirect users to the original URL when they access the short code
- Q2. Given an array and a sum you need to find a pair of elements whose sum is equal to the given sum?
- Q3. LRU cache implementation with code.
- Ans.
LRU cache implementation using doubly linked list and hash map.
Use a doubly linked list to keep track of the order of elements in the cache.
Use a hash map to store the key-value pairs for fast access.
When a new element is added, check if the cache is full and remove the least recently used element.
When an element is accessed, move it to the front of the linked list.
Interview Preparation Tips
Next round was taken by Senior Team Lead. It seemed as if did not even care about the interview. Gave me the question and did not even bother to check the solution. While I was discussing design for url shortner, he did not utter a word during the whole discussion.
I felt positive as he did not counter question my solution but HR said I was rejected.
Skills evaluated in this interview
Software Development Engineer Interview Questions asked at other Companies
I applied via Naukri.com and was interviewed in Sep 2021. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. Write a program to find the Next Smaller Element.
- Ans.
Program to find the Next Smaller Element
Create an empty stack
Traverse the array from right to left
Pop elements from stack until a smaller element is found
If no smaller element is found, output -1
Push the current element onto the stack
- Q2. Given two stacks, one full and one empty, return one stack of odd and one of even numbers, without using any other memory.
- Ans.
Return odd and even numbers from two stacks, one full and one empty, without using any other memory.
Pop elements from full stack and check if it's odd or even
Push odd elements to one stack and even elements to another
Push elements back to full stack in alternating order
Time complexity: O(n), Space complexity: O(1)
Interview Preparation Tips
Skills evaluated in this interview
Software Engineer Interview Questions asked at other Companies
Selected
I applied via LinkedIn and was interviewed before Mar 2022. There were 2 interview rounds.
(2 Questions)
- Q1. Explain any ML algorithm in depth
- Ans.
Random Forest is an ensemble learning algorithm that builds multiple decision trees and combines their outputs.
Random Forest is a supervised learning algorithm.
It can be used for both classification and regression tasks.
It creates multiple decision trees and combines their outputs to make a final prediction.
Each tree is built on a random subset of the training data and a random subset of the features.
Random Forest redu...
- Q2. There was a case study
Interview Preparation Tips
Skills evaluated in this interview
Data Scientist Interview Questions asked at other Companies
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Airtel X- Labs Interview FAQs
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Airtel X- Labs Interviews By Designations
- Airtel X- Labs Lead Engineer Interview Questions
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- Airtel X- Labs QA Engineer Interview Questions
- Airtel X- Labs Sdet Lead Interview Questions
- Airtel X- Labs Senior Lead Interview Questions
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- Airtel X- Labs Software Developer Interview Questions
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Interview Questions for Popular Designations
Airtel X- Labs Interview Process
based on 8 interviews
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based on 100 reviews
Rating in categories
|
Senior Software Engineer
162
salaries
|  ₹13 L/yr - ₹30 L/yr |
|
Software Engineer
82
salaries
| ₹9 L/yr - ₹20 L/yr |
|
Lead Engineer
40
salaries
| ₹20 L/yr - ₹40 L/yr |
|
Sdet Lead
19
salaries
| ₹20 L/yr - ₹41 L/yr |
|
Senior Leader Engineer
16
salaries
| ₹37 L/yr - ₹50 L/yr |
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